Discussion :

[turboiii]

bonjour
j'ai mis ce post dans le forum général python, mais je n'inspire pas grand monde. Je tente à nouveau ici

j'ai un problème pour utiliser le module shelve.
Mon objectif est d'utiliser sa fonction de persistance pour stocker le buffer d'un textview de pygtk. C'est normalement un objet comme un autre. Mais j'ai un message d'erreur. J'ai cherché sur internet les restrictions d'usage de shelve sans succès.

Si une bonne âme pouvait me mettre sur la voie du problème. Quelle erreur je commet?
Voici un code qui fonctionne

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
'''test de shelve
'''
 
import gtk
import pango
import gobject
import shelve
import os
 
class ShelveDemo(object):
    def __init__(self):
        self.variable1 ='essai'
        self.variable2 ='1'
        self.variable3 ='15'
        self.variable4 =15000
 
    def affiche(self):
        print self.variable1
        print self.variable2
        print self.variable3
        print self.variable4
 
    def save(self,objet):
        save_file = os.path.abspath( "D:\sphinx" + os.sep + 'essai2.tvw')
        db = shelve.open(save_file)
        db['cle1']=objet
        print
        print "liste des clé enregistrée",db.keys
        print
        db.close()
        print('sauvegarde ok')
 
    def load(self):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai2.tvw')
 
        xx = shelve.open(save_file)
        print
        print "liste des clé loading....",xx.keys
        print
        objet1 = xx['cle1']
        objet1.affiche()
        xx.close()
 
test = ShelveDemo()
test.affiche()
test.save(test)
test.load()

Voici le code qui ne fonctionne pas

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
'''Text Widget/Hypertext
 
Usually, tags modify the appearance of text in the view, e.g. making it
bold or colored or underlined. But tags are not restricted to appearance.
They can also affect the behavior of mouse and key presses, as this demo
shows.'''
# pygtk version: Maik Hertha <maik.hertha@berlin.de>
 
import gtk
import pango
import gobject
import shelve
import os
 
class stock_buffer(object):
    def __init__(self,buffer):
        self.buffer = buffer
 
class HypertextDemo(gtk.Window):
    hovering_over_link = False
    hand_cursor = gtk.gdk.Cursor(gtk.gdk.HAND2)
    regular_cursor = gtk.gdk.Cursor(gtk.gdk.XTERM)
 
    def save(self,buffer):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai.tvw')
        db = shelve.open(save_file)
        instance_buffer = stock_buffer(buffer)
        db['cle']=instance_buffer
        db.close()
        print('sauvegarde ok')
 
    def load(self):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai.tvw')
        db = shelve.open(save_file)
        print
        print "liste des clé enregistrée",db.keys
        print
        conteneur = db['cle']
        db.close()
 
        window = gtk.Window()
        window.connect('destroy', lambda *w: gtk.main_quit())
 
        window.set_title(self.__class__.__name__+' clone')
        window.set_default_size(450, 450)
        window.set_border_width(0)
 
        view = gtk.TextView(conteneur.buffer)
        view.set_wrap_mode(gtk.WRAP_WORD) #c'est utile car il y a en permanence une partie cachée pas top pour une aide
        view.connect("key-press-event", self.key_press_event)
        view.connect("event-after", self.event_after)
        view.connect("motion-notify-event", self.motion_notify_event)
        view.connect("visibility-notify-event", self.visibility_notify_event)
 
        #buffer = view.get_buffer()
 
        sw = gtk.ScrolledWindow()
        sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        window.add(sw)
        sw.add(view)
 
        window.show_page(buffer, 1)
 
        window.show_all()
 
 
    def __init__(self, parent=None):
        livre_xpm_red = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c red",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_red = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_red)
        livre_xpm_blue = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c blue",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_blue = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_blue)
        livre_xpm_green = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c green",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_green = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_green)
        livre_xpm_pink = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c pink",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_pink = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_pink)
        livre_xpm_yel = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c yellow",
                    "o      c red",
                    "O      c #808080",
                    "#      c white",
                    "a      c darkblue",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".XXXXXXXXXXX.   ",
                    "..XXXXXXXXXXX.  ",
                    ".a.XXXXXXXXXXX. ",
                    ".aa.XXXXXXXX..  ",
                    " .aa.XXXXX..#O  ",
                    "  .aa.XX..##OO. ",
                    "   .aa..##OO..  ",
                    "    .a.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_yel = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_yel)
        livre_xpm_yel_b = [
                    "48 36 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c yellow",
                    "o      c red",
                    "O      c #808080",
                    "#      c white",
                    "a      c #A69996589658",
                    "                                                ",
                    "                            ..                  ",
                    "                          ..XX.                 ",
                    "                        ..XXXXX.                ",
                    "                      ..XXXXXXXX.               ",
                    "                    ..XXXXXXXXXXX.              ",
                    "                  ..XXXXXXXXXXXXXX.             ",
                    "                ..XXXXXXXXXXXXXXXXX.            ",
                    "              ..XXXXXXXXXXXXXXXXXXXX.           ",
                    "            ..XXXXXXXXXXXXXXXXXXXXXXX.          ",
                    "          ..XXXXXXXXXXXXXXXXXXXXXXXXXX.         ",
                    "        ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXX.        ",
                    "      ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.       ",
                    "    ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.      ",
                    "  ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.     ",
                    " ...XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.    ",
                    " .aaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.   ",
                    " .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.  ",
                    "  .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX..#. ",
                    "   .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX..##O. ",
                    "    .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXX..##OOO. ",
                    "     .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXX..##OOOO.. ",
                    "      .aaaa.XXXXXXXXXXXXXXXXXXXXXXX..##OOOO..   ",
                    "       .aaaa.XXXXXXXXXXXXXXXXXXXX..##OOOO..     ",
                    "        .aaaa.XXXXXXXXXXXXXXXXX..##OOOO..       ",
                    "         .aaaa.XXXXXXXXXXXXXX..##OOOO..         ",
                    "          .aaaa.XXXXXXXXXXX..##OOOO..           ",
                    "           .aaaa.XXXXXXXX..##OOOO..             ",
                    "            .aaaa.XXXXX..##OOOO..               ",
                    "             .aaaa.XX..##OOOO..                 ",
                    "              .aaaa..##OOOO..                   ",
                    "               .aa.##OOOO..                     ",
                    "                .a.#OOO..                       ",
                    "                 .....                          ",
                    "                  ...                           ",
                    "                                                "]
        self.pixbuf_yel_b = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_yel_b)
 
        BrouettePleine_xpm = [
"48 48 64 1",
"       c None",
".      c #DF7DCF3CC71B",
"X      c #965875D669A6",
"o      c #71C671C671C6",
"O      c #A699A289A699",
"+      c #965892489658",
"@      c #8E38410330C2",
"#      c #D75C7DF769A6",
"$      c #F7DECF3CC71B",
"%      c #96588A288E38",
"&      c #A69992489E79",
"*      c #8E3886178E38",
"=      c #104008200820",
"-      c #596510401040",
";      c #C71B30C230C2",
":      c #C71B9A699658",
">      c #618561856185",
",      c #20811C712081",
"<      c #104000000000",
"1      c #861720812081",
"2      c #DF7D4D344103",
"3      c #79E769A671C6",
"4      c #861782078617",
"5      c #41033CF34103",
"6      c #000000000000",
"7      c #49241C711040",
"8      c #492445144924",
"9      c #082008200820",
"0      c #69A618611861",
"q      c #B6DA71C65144",
"w      c #410330C238E3",
"e      c #CF3CBAEAB6DA",
"r      c #71C6451430C2",
"t      c #EFBEDB6CD75C",
"y      c #28A208200820",
"u      c #186110401040",
"i      c #596528A21861",
"p      c #71C661855965",
"a      c #A69996589658",
"s      c #30C228A230C2",
"d      c #BEFBA289AEBA",
"f      c #596545145144",
"g      c #30C230C230C2",
"h      c #8E3882078617",
"j      c #208118612081",
"k      c #38E30C300820",
"l      c #30C2208128A2",
"z      c #38E328A238E3",
"x      c #514438E34924",
"c      c #618555555965",
"v      c #30C2208130C2",
"b      c #38E328A230C2",
"n      c #28A228A228A2",
"m      c #41032CB228A2",
"M      c #104010401040",
"N      c #492438E34103",
"B      c #28A2208128A2",
"V      c #A699596538E3",
"C      c #30C21C711040",
"Z      c #30C218611040",
"A      c #965865955965",
"S      c #618534D32081",
"D      c #38E31C711040",
"F      c #082000000820",
"                                                ",
"          .XoO                                  ",
"         +@#$%o&                                ",
"         *=-;#::o+                              ",
"           >,<12#:34                            ",
"             45671#:X3                          ",
"               +89<02qwo                        ",
"e*                >,67;ro                       ",
"ty>                 459@>+&&                    ",
"$2u+                  ><ipas8*                  ",
"%$;=*                *3:.Xa.dfg>                ",
"Oh$;ya             *3d.a8j,Xe.d3g8+             ",
" Oh$;ka          *3d$a8lz,,xxc:.e3g54           ",
"  Oh$;kO       *pd$%svbzz,sxxxxfX..&wn>         ",
"   Oh$@mO    *3dthwlsslszjzxxxxxxx3:td8M4       ",
"    Oh$@g& *3d$XNlvvvlllm,mNwxxxxxxxfa.:,B*     ",
"     Oh$@,Od.czlllllzlmmqV@V#V@fxxxxxxxf:%j5&   ",
"      Oh$1hd5lllslllCCZrV#r#:#2AxxxxxxxxxcdwM*  ",
"       OXq6c.%8vvvllZZiqqApA:mq:Xxcpcxxxxxfdc9* ",
"        2r<6gde3bllZZrVi7S@SV77A::qApxxxxxxfdcM ",
"        :,q-6MN.dfmZZrrSS:#riirDSAX@Af5xxxxxfevo",
"         +A26jguXtAZZZC7iDiCCrVVii7Cmmmxxxxxx%3g",
"          *#16jszN..3DZZZZrCVSA2rZrV7Dmmwxxxx&en",
"           p2yFvzssXe:fCZZCiiD7iiZDiDSSZwwxx8e*>",
"           OA1<jzxwwc:$d%NDZZZZCCCZCCZZCmxxfd.B ",
"            3206Bwxxszx%et.eaAp77m77mmmf3&eeeg* ",
"             @26MvzxNzvlbwfpdettttttttttt.c,n&  ",
"             *;16=lsNwwNwgsvslbwwvccc3pcfu<o    ",
"              p;<69BvwwsszslllbBlllllllu<5+     ",
"              OS0y6FBlvvvzvzss,u=Blllj=54       ",
"               c1-699Blvlllllu7k96MMMg4         ",
"               *10y8n6FjvllllB<166668           ",
"                S-kg+>666<M<996-y6n<8*          ",
"                p71=4 m69996kD8Z-66698&&        ",
"                &i0ycm6n4 ogk17,0<6666g         ",
"                 N-k-<>     >=01-kuu666>        ",
"                 ,6ky&      &46-10ul,66,        ",
"                 Ou0<>       o66y<ulw<66&       ",
"                  *kk5       >66By7=xu664       ",
"                   <<M4      466lj<Mxu66o       ",
"                   *>>       +66uv,zN666*       ",
"                              566,xxj669        ",
"                              4666FF666>        ",
"                               >966666M         ",
"                                oM6668+         ",
"                                  *4            ",
"                                                ",
"                                                "
]
        self.pixbuf_bro = gtk.gdk.pixbuf_new_from_xpm_data(BrouettePleine_xpm)
        gtk.Window.__init__(self)
        try:
            self.set_screen(parent.get_screen())
        except AttributeError:
            self.connect('destroy', lambda *w: gtk.main_quit())
 
        self.set_title(self.__class__.__name__)
        self.set_default_size(450, 450)
        self.set_border_width(0)
 
        view = gtk.TextView()
        view.set_wrap_mode(gtk.WRAP_WORD) #c'est utile car il y a en permanence une partie cachée pas top pour une aide
        view.connect("key-press-event", self.key_press_event)
        view.connect("event-after", self.event_after)
        view.connect("motion-notify-event", self.motion_notify_event)
        view.connect("visibility-notify-event", self.visibility_notify_event)
 
        buffer = view.get_buffer()
 
        sw = gtk.ScrolledWindow()
        sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        self.add(sw)
        sw.add(view)
 
        self.show_page(buffer, 1)
 
        self.show_all()
        self.save(buffer)
        #self.load()
 
    # Links can be activated by pressing Enter.
    def key_press_event(self, text_view, event):
        if (event.keyval == gtk.gdk.Return or
            event.keyval == gtk.gdk.KP_Enter):
            buffer = text_view.get_buffer()
            iter = buffer.get_iter_at_mark(buffer.get_insert())
            self.follow_if_link(text_view, iter)
        return False
 
    # Links can also be activated by clicking.
    def event_after(self, text_view, event):
        if event.type != gtk.gdk.BUTTON_RELEASE:
            return False
        if event.button != 1:
            return False
        buffer = text_view.get_buffer()
 
        # we shouldn't follow a link if the user has selected something
        try:
            start, end = buffer.get_selection_bounds()
        except ValueError:
            # If there is nothing selected, None is return
            pass
        else:
            if start.get_offset() != end.get_offset():
                return False
 
        x, y = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
            int(event.x), int(event.y))
        iter = text_view.get_iter_at_location(x, y)
 
        self.follow_if_link(text_view, iter)
        return False
 
 
    # Looks at all tags covering the position (x, y) in the text view,
    # and if one of them is a link, change the cursor to the "hands" cursor
    # typically used by web browsers.
    def set_cursor_if_appropriate(self, text_view, x, y):
        hovering = False
 
        buffer = text_view.get_buffer()
        iter = text_view.get_iter_at_location(x, y)
 
        tags = iter.get_tags()
        for tag in tags:
            page = tag.get_data("page")
            if page != 0:
                hovering = True
                break
 
        if hovering != self.hovering_over_link:
            self.hovering_over_link = hovering
 
        if self.hovering_over_link:
            text_view.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(self.hand_cursor)
        else:
            text_view.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(self.regular_cursor)
 
    # Update the cursor image if the pointer moved.
    def motion_notify_event(self, text_view, event):
        x, y = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
            int(event.x), int(event.y))
        self.set_cursor_if_appropriate(text_view, x, y)
        text_view.window.get_pointer()
        return False
 
    # Also update the cursor image if the window becomes visible
    # (e.g. when a window covering it got iconified).
    def visibility_notify_event(self, text_view, event):
        wx, wy, mod = text_view.window.get_pointer()
        bx, by = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET, wx, wy)
 
        self.set_cursor_if_appropriate (text_view, bx, by)
        return False
 
    def insert_link(self, buffer, iter, text, page):
        ''' Inserts a piece of text into the buffer, giving it the usual
            appearance of a hyperlink in a web browser: blue and underlined.
            Additionally, attaches some data on the tag, to make it recognizable
            as a link.
        '''
        tag = buffer.create_tag(None,
            foreground="blue", underline=pango.UNDERLINE_SINGLE)
        tag.set_data("page", page)
        buffer.insert_with_tags(iter, text, tag)
 
 
    def show_page(self, buffer, page):
        ''' Fills the buffer with text and interspersed links. In any real
            hypertext app, this method would parse a file to identify the links.
        '''
        buffer.set_text("", 0)
        iter = buffer.get_iter_at_offset(0)
        if page == 1:
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert(iter, "Some text to show that simple ")
            self.insert_link(buffer, iter, "hypertext", 3)
            buffer.insert(iter, " can easily be realized with ")
            self.insert_link(buffer, iter, "tags", 2)
            buffer.insert(iter, ".")
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_yel)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_bro)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_yel_b)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_blue)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_green)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_pink)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
 
        elif page == 2:
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert(iter,
                "A tag is an attribute that can be applied to some range of text. "
                "For example, a tag might be called \"bold\" and make the text inside "
                "the tag bold. However, the tag concept is more general than that "
                "tags don't have to affect appearance. They can instead affect the "
                "behavior of mouse and key presses, \"lock\" a range of text so the "
                "user can't edit it, or countless other things.\n", -1)
            self.insert_link(buffer, iter, "Go back", 1)
        elif page == 3:
            tag = buffer.create_tag(None, weight=pango.WEIGHT_BOLD)
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert_with_tags(iter, "hypertext:\n", tag)
            buffer.insert(iter,
                "machine-readable text that is not sequential but is organized "
                "so that related items of information are connected.\n")
            self.insert_link(buffer, iter, "Go back", 1)
 
 
    def follow_if_link(self, text_view, iter):
        ''' Looks at all tags covering the position of iter in the text view,
            and if one of them is a link, follow it by showing the page identified
            by the data attached to it.
        '''
        tags = iter.get_tags()
        for tag in tags:
            page = tag.get_data("page")
            if page != 0:
                self.show_page(text_view.get_buffer(), page)
                break
 
    def create_tags(self, text_buffer):
        '''
        Create a bunch of tags. Note that it's also possible to
        create tags with gtk.text_tag_new() then add them to the
        tag table for the buffer, text_buffer.create_tag() is
        just a convenience function. Also note that you don't have
        to give tags a name; pass None for the name to create an
        anonymous tag.
 
        In any real app, another useful optimization would be to create
        a GtkTextTagTable in advance, and reuse the same tag table for
        all the buffers with the same tag set, instead of creating
        new copies of the same tags for every buffer.
 
        Tags are assigned default priorities in order of addition to the
        tag table. That is, tags created later that affect the same text
        property affected by an earlier tag will override the earlier
        tag. You can modify tag priorities with
        gtk.text_tag_set_priority().
        '''
        text_buffer.create_tag("heading",
                    weight=pango.WEIGHT_BOLD,
                    size=15 * pango.SCALE)
 
        text_buffer.create_tag("italic", style=pango.STYLE_ITALIC)
        text_buffer.create_tag("bold", weight=pango.WEIGHT_BOLD)
        text_buffer.create_tag("heading",weight=pango.WEIGHT_BOLD,size=15 * pango.SCALE)
        text_buffer.create_tag("big", size=20 * pango.SCALE)# points times the pango.SCALE factor
        text_buffer.create_tag("huge",  size=40 * pango.SCALE)
 
        text_buffer.create_tag("xx-small", scale=pango.SCALE_XX_SMALL)
        text_buffer.create_tag("x-large", scale=pango.SCALE_X_LARGE)
        text_buffer.create_tag("monospace", family="monospace")
 
 
        text_buffer.create_tag("blue_foreground", foreground="blue")
        text_buffer.create_tag("brown_foreground", foreground="brown")
        text_buffer.create_tag("cyan_foreground", foreground="cyan")
        text_buffer.create_tag("green_foreground", foreground="green")
        text_buffer.create_tag("magenta_foreground", foreground="magenta")
        text_buffer.create_tag("orange_foreground", foreground="orange")
        text_buffer.create_tag("pink_foreground", foreground="pink")
        text_buffer.create_tag("purple_foreground", foreground="purple")
        text_buffer.create_tag("red_foreground", foreground="red")
        text_buffer.create_tag("yellow_foreground", foreground="yellow")
 
        text_buffer.create_tag("darkblue_foreground", foreground="darkblue")
        text_buffer.create_tag("darkgreen_foreground", foreground="darkgreen")
        text_buffer.create_tag("darkred_foreground", foreground="darkred")
 
        text_buffer.create_tag("blue_background", background="blue")
        text_buffer.create_tag("brown_background", background="brown")
        text_buffer.create_tag("cyan_background", background="cyan")
        text_buffer.create_tag("green_background", background="green")
        text_buffer.create_tag("magenta_background", background="magenta")
        text_buffer.create_tag("orange_background", background="orange")
        text_buffer.create_tag("pink_background", background="pink")
        text_buffer.create_tag("purple_background", background="purple")
        text_buffer.create_tag("gray_background", background="gray")
        text_buffer.create_tag("red_background", background="red")
        text_buffer.create_tag("yellow_background", background="yellow")
        text_buffer.create_tag("white_background", background="white")
 
        text_buffer.create_tag("darkgray_background", background="darkgray")
        text_buffer.create_tag("light_blue_background", background="light blue")
        text_buffer.create_tag("light_cyan_background", background="light cyan")
        text_buffer.create_tag("light_green_background", background="light green")
        text_buffer.create_tag("light_magenta_background", background="light magenta")
        text_buffer.create_tag("light_orange_background", background="light orange")
        text_buffer.create_tag("light_pink_background", background="light pink")
        text_buffer.create_tag("light_red_background", background="light red")
        text_buffer.create_tag("light_yellow_background", background="light yellow")
 
        stipple = gtk.gdk.bitmap_create_from_data(None,
            gray50_bits, gray50_width, gray50_height)
 
        text_buffer.create_tag("background_stipple", background_stipple=stipple)
        text_buffer.create_tag("foreground_stipple", foreground_stipple=stipple)
 
 
        text_buffer.create_tag("big_gap_before_line", pixels_above_lines=30)
        text_buffer.create_tag("big_gap_after_line", pixels_below_lines=30)
        text_buffer.create_tag("double_spaced_line", pixels_inside_wrap=10)
 
        text_buffer.create_tag("not_editable", editable=False)
        text_buffer.create_tag(None, invisible=True)
        text_buffer.create_tag(editable=False, foreground="purple") #balise_non_editable
 
        text_buffer.create_tag("word_wrap", wrap_mode=gtk.WRAP_WORD)
        text_buffer.create_tag("char_wrap", wrap_mode=gtk.WRAP_CHAR)
        text_buffer.create_tag("no_wrap", wrap_mode=gtk.WRAP_NONE)
 
        text_buffer.create_tag("center", justification=gtk.JUSTIFY_CENTER)
        text_buffer.create_tag("right_justify", justification=gtk.JUSTIFY_RIGHT)
        text_buffer.create_tag("left_justify", justification=gtk.JUSTIFY_LEFT)
        text_buffer.create_tag("fill_justify", justification=gtk.GTK_JUSTIFY_FILL)
 
        text_buffer.create_tag("wide_margins",left_margin=50, right_margin=50)
        text_buffer.create_tag("strikethrough", strikethrough=True) #barre
 
 
        text_buffer.create_tag("underline",underline=pango.UNDERLINE_SINGLE)
        text_buffer.create_tag("double_underline", underline=pango.UNDERLINE_DOUBLE)
 
        text_buffer.create_tag("superscript",   # exposant
                    rise=10 * pango.SCALE,      # 10 pixels
                    size=8 * pango.SCALE)       #  8 points
 
        text_buffer.create_tag("subscript",     # subexposant
                    rise=-10 * pango.SCALE,     # 10 pixels
                    size=8 * pango.SCALE)       #  8 points
 
        text_buffer.create_tag("rtl_quote",
                    wrap_mode=gtk.WRAP_WORD, direction=gtk.TEXT_DIR_RTL,
                    indent=30, left_margin=20, right_margin=20)
 
 
        '''
        NBRE_COULEURS = 16
        ECHELLE_PANGO = 1024
        tabledesbalises = self.get_tag_table()
        self.comptref = 0
        self.nomfichier = None
        self.sanstitre_num = -1
        self.balises_couleurs = []
        self.marqueur_cycle_couleurs = 0
        self.teinte_depart = 0.0
 
        for i in range(Buffer.NBRE_COULEURS):
            balise = self.create_tag()
            self.balises_couleurs.append(balise)
        '''
 
 
def main():
    HypertextDemo()
    gtk.main()
 
if __name__ == '__main__':
    main()

avec son message d'erreur

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Traceback (most recent call last):
  File "SP_hypertexte.py", line 698, in <module>
    main()
  File "SP_hypertexte.py", line 694, in main
    HypertextDemo()
  File "SP_hypertexte.py", line 386, in __init__
    self.save(buffer)
  File "SP_hypertexte.py", line 30, in save
    db['cle']=instance_buffer
  File "C:\python26\Lib\shelve.py", line 132, in __setitem__
    p.dump(value)
  File "C:\python26\Lib\copy_reg.py", line 70, in _reduce_ex
    raise TypeError, "can't pickle %s objects" % base.__name__
TypeError: can't pickle TextBuffer objects

pourquoi can't pickle TextBuffer objects, c'est normalement un objet comme un autre????
Merci d'avance de votre aide

[turboiii]

bonjour
j'ai résolu une partie de mon problème.
la cause-racine vient là.

Le protocole version 0 est le protocole ASCII original et il est retro-comptatible avec les versions précédentes de Python

Le protocole version 1 est l'ancien format binaire qui est également compatible avec les anciennes versions de Python

Le protocole version 2 a été introduit avec Python 2.3. Il fournit un pickling plus efficace pour les classes de nouveau style.

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db = shelve.open(save_file,protocol=2)

voilà il faut utiliser le bon protocole.

Le piège étant que le code ci-dessous fonctionne.
Dans l'état je n'ai pas encore compris, puisque class ShelveDemo(object):
est une classe nouveau style
et cela fonctionne avec protocol=0 qui est la valeur par defaut.

NOTA: je suis en python 2.6 mais j'aime

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#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
'''test de shelve
'''
 
import gtk
import gobject
import shelve
import os
 
class ShelveDemo(object):
    def __init__(self):
        self.variable1 ='essai'
        self.variable2 ='1'
        self.variable3 ='15'
        self.variable4 =15000
 
    def affiche(self):
        print self.variable1
        print self.variable2
        print self.variable3
        print self.variable4
 
    def save(self,objet):
        save_file = os.path.abspath( "D:\sphinx" + os.sep + 'essai2.tvw')
        db = shelve.open(save_file)
        db['cle1']=objet
        print
        print "liste des clé enregistrée",db.keys
        print
        db.close()
        print('sauvegarde ok')
 
    def load(self):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai2.tvw')
 
        xx = shelve.open(save_file)
        print
        print "liste des clé loading....",xx.keys
        print
        objet1 = xx['cle1']
        objet1.affiche()
        xx.close()
 
test = ShelveDemo()
test.affiche()
test.save(test)
test.load()

Avis donc à ceux qui rament avec shelve ne pas oublier de choisir le bon protocole......mais je suis sur qui il y a encore autre chose....
Ci-dessous mon code test qui lui continuer de refuser le chargement, mais j'approche du but

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#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
'''Text Widget/Hypertext
 
Usually, tags modify the appearance of text in the view, e.g. making it
bold or colored or underlined. But tags are not restricted to appearance.
They can also affect the behavior of mouse and key presses, as this demo
shows.'''
# pygtk version: Maik Hertha <maik.hertha@berlin.de>
 
import gtk
import pango
import gobject
import shelve
import os
from printv import printv
 
class test_affiche:
    def __init__(self,bufferr):
        self.window = gtk.Window()
        self.window.connect('destroy', lambda *w: gtk.main_quit())
 
        self.window.set_title(self.__class__.__name__+' clone')
        self.window.set_default_size(450, 450)
        self.window.set_border_width(0)
 
        view = gtk.TextView()
        view.set_buffer(bufferr)
        view.set_wrap_mode(gtk.WRAP_WORD) #c'est utile car il y a en permanence une partie cachée pas top pour une aide
 
        sw = gtk.ScrolledWindow()
        sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        self.window.add(sw)
        sw.add(view)
        self.window.show_all()
 
class HypertextDemo(gtk.Window):
    hovering_over_link = False
    hand_cursor = gtk.gdk.Cursor(gtk.gdk.HAND2)
    regular_cursor = gtk.gdk.Cursor(gtk.gdk.XTERM)
 
    def save(self,bufferr):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai.tvw')
        db = shelve.open(save_file,protocol=2) # protocol=2 est nécessaire pour traiter objet complexe type TextBuffer
        printv (buffer)
        print type(buffer)
        db['cle']=bufferr
        db.close()
        print('sauvegarde ok')
        # fonction de test pour savoir ce que je sauvegarde
        essai = test_affiche(bufferr)
        printv( bufferr)
 
    def load(self):
        save_file = os.path.abspath("D:\sphinx" + os.sep + 'essai.tvw')
        db = shelve.open(save_file,protocol=2) # protocol=2 est nécessaire pour traiter objet complexe type TextBuffer
        print
        print "liste des clé enregistrée",db.keys
        print
        conteneur = db['cle']
        print "type de l'objet en cours de chargement %s" %type(conteneur)
        print "nom  de l'objet en cours de chargement %s" %conteneur.__class__.__name__
        printv (conteneur)
        # fonction de test pour savoir ce que je sauvegarde
        essai3 = test_affiche(conteneur)
        db.close()
 
 
    def __init__(self, parent=None):
        livre_xpm_red = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c red",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_red = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_red)
        livre_xpm_blue = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c blue",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_blue = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_blue)
        livre_xpm_green = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c green",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_green = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_green)
        livre_xpm_pink = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c pink",
                    "o      c yellow",
                    "O      c #808080",
                    "#      c white",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".ooXXXXXXXXX.   ",
                    "..ooXXXXXXXXX.  ",
                    ".X.ooXXXXXXXXX. ",
                    ".XX.ooXXXXXX..  ",
                    " .XX.ooXXX..#O  ",
                    "  .XX.oo..##OO. ",
                    "   .XX..##OO..  ",
                    "    .X.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_pink = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_pink)
        livre_xpm_yel = [
                    "16 16 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c yellow",
                    "o      c red",
                    "O      c #808080",
                    "#      c white",
                    "a      c darkblue",
                    "                ",
                    "       ..       ",
                    "     ..XX.      ",
                    "   ..XXXXX.     ",
                    " ..XXXXXXXX.    ",
                    ".XXXXXXXXXXX.   ",
                    "..XXXXXXXXXXX.  ",
                    ".a.XXXXXXXXXXX. ",
                    ".aa.XXXXXXXX..  ",
                    " .aa.XXXXX..#O  ",
                    "  .aa.XX..##OO. ",
                    "   .aa..##OO..  ",
                    "    .a.#OO..    ",
                    "     ..O..      ",
                    "      ..        ",
                    "                "]
        self.pixbuf_yel = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_yel)
        livre_xpm_yel_b = [
                    "48 36 6 1",
                    "       c None s None",
                    ".      c black",
                    "X      c yellow",
                    "o      c red",
                    "O      c #808080",
                    "#      c white",
                    "a      c #A69996589658",
                    "                                                ",
                    "                            ..                  ",
                    "                          ..XX.                 ",
                    "                        ..XXXXX.                ",
                    "                      ..XXXXXXXX.               ",
                    "                    ..XXXXXXXXXXX.              ",
                    "                  ..XXXXXXXXXXXXXX.             ",
                    "                ..XXXXXXXXXXXXXXXXX.            ",
                    "              ..XXXXXXXXXXXXXXXXXXXX.           ",
                    "            ..XXXXXXXXXXXXXXXXXXXXXXX.          ",
                    "          ..XXXXXXXXXXXXXXXXXXXXXXXXXX.         ",
                    "        ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXX.        ",
                    "      ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.       ",
                    "    ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.      ",
                    "  ..XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.     ",
                    " ...XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.    ",
                    " .aaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.   ",
                    " .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.  ",
                    "  .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX..#. ",
                    "   .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX..##O. ",
                    "    .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXXXXX..##OOO. ",
                    "     .aaaa.XXXXXXXXXXXXXXXXXXXXXXXXXX..##OOOO.. ",
                    "      .aaaa.XXXXXXXXXXXXXXXXXXXXXXX..##OOOO..   ",
                    "       .aaaa.XXXXXXXXXXXXXXXXXXXX..##OOOO..     ",
                    "        .aaaa.XXXXXXXXXXXXXXXXX..##OOOO..       ",
                    "         .aaaa.XXXXXXXXXXXXXX..##OOOO..         ",
                    "          .aaaa.XXXXXXXXXXX..##OOOO..           ",
                    "           .aaaa.XXXXXXXX..##OOOO..             ",
                    "            .aaaa.XXXXX..##OOOO..               ",
                    "             .aaaa.XX..##OOOO..                 ",
                    "              .aaaa..##OOOO..                   ",
                    "               .aa.##OOOO..                     ",
                    "                .a.#OOO..                       ",
                    "                 .....                          ",
                    "                  ...                           ",
                    "                                                "]
        self.pixbuf_yel_b = gtk.gdk.pixbuf_new_from_xpm_data(livre_xpm_yel_b)
 
        BrouettePleine_xpm = [
"48 48 64 1",
"       c None",
".      c #DF7DCF3CC71B",
"X      c #965875D669A6",
"o      c #71C671C671C6",
"O      c #A699A289A699",
"+      c #965892489658",
"@      c #8E38410330C2",
"#      c #D75C7DF769A6",
"$      c #F7DECF3CC71B",
"%      c #96588A288E38",
"&      c #A69992489E79",
"*      c #8E3886178E38",
"=      c #104008200820",
"-      c #596510401040",
";      c #C71B30C230C2",
":      c #C71B9A699658",
">      c #618561856185",
",      c #20811C712081",
"<      c #104000000000",
"1      c #861720812081",
"2      c #DF7D4D344103",
"3      c #79E769A671C6",
"4      c #861782078617",
"5      c #41033CF34103",
"6      c #000000000000",
"7      c #49241C711040",
"8      c #492445144924",
"9      c #082008200820",
"0      c #69A618611861",
"q      c #B6DA71C65144",
"w      c #410330C238E3",
"e      c #CF3CBAEAB6DA",
"r      c #71C6451430C2",
"t      c #EFBEDB6CD75C",
"y      c #28A208200820",
"u      c #186110401040",
"i      c #596528A21861",
"p      c #71C661855965",
"a      c #A69996589658",
"s      c #30C228A230C2",
"d      c #BEFBA289AEBA",
"f      c #596545145144",
"g      c #30C230C230C2",
"h      c #8E3882078617",
"j      c #208118612081",
"k      c #38E30C300820",
"l      c #30C2208128A2",
"z      c #38E328A238E3",
"x      c #514438E34924",
"c      c #618555555965",
"v      c #30C2208130C2",
"b      c #38E328A230C2",
"n      c #28A228A228A2",
"m      c #41032CB228A2",
"M      c #104010401040",
"N      c #492438E34103",
"B      c #28A2208128A2",
"V      c #A699596538E3",
"C      c #30C21C711040",
"Z      c #30C218611040",
"A      c #965865955965",
"S      c #618534D32081",
"D      c #38E31C711040",
"F      c #082000000820",
"                                                ",
"          .XoO                                  ",
"         +@#$%o&                                ",
"         *=-;#::o+                              ",
"           >,<12#:34                            ",
"             45671#:X3                          ",
"               +89<02qwo                        ",
"e*                >,67;ro                       ",
"ty>                 459@>+&&                    ",
"$2u+                  ><ipas8*                  ",
"%$;=*                *3:.Xa.dfg>                ",
"Oh$;ya             *3d.a8j,Xe.d3g8+             ",
" Oh$;ka          *3d$a8lz,,xxc:.e3g54           ",
"  Oh$;kO       *pd$%svbzz,sxxxxfX..&wn>         ",
"   Oh$@mO    *3dthwlsslszjzxxxxxxx3:td8M4       ",
"    Oh$@g& *3d$XNlvvvlllm,mNwxxxxxxxfa.:,B*     ",
"     Oh$@,Od.czlllllzlmmqV@V#V@fxxxxxxxf:%j5&   ",
"      Oh$1hd5lllslllCCZrV#r#:#2AxxxxxxxxxcdwM*  ",
"       OXq6c.%8vvvllZZiqqApA:mq:Xxcpcxxxxxfdc9* ",
"        2r<6gde3bllZZrVi7S@SV77A::qApxxxxxxfdcM ",
"        :,q-6MN.dfmZZrrSS:#riirDSAX@Af5xxxxxfevo",
"         +A26jguXtAZZZC7iDiCCrVVii7Cmmmxxxxxx%3g",
"          *#16jszN..3DZZZZrCVSA2rZrV7Dmmwxxxx&en",
"           p2yFvzssXe:fCZZCiiD7iiZDiDSSZwwxx8e*>",
"           OA1<jzxwwc:$d%NDZZZZCCCZCCZZCmxxfd.B ",
"            3206Bwxxszx%et.eaAp77m77mmmf3&eeeg* ",
"             @26MvzxNzvlbwfpdettttttttttt.c,n&  ",
"             *;16=lsNwwNwgsvslbwwvccc3pcfu<o    ",
"              p;<69BvwwsszslllbBlllllllu<5+     ",
"              OS0y6FBlvvvzvzss,u=Blllj=54       ",
"               c1-699Blvlllllu7k96MMMg4         ",
"               *10y8n6FjvllllB<166668           ",
"                S-kg+>666<M<996-y6n<8*          ",
"                p71=4 m69996kD8Z-66698&&        ",
"                &i0ycm6n4 ogk17,0<6666g         ",
"                 N-k-<>     >=01-kuu666>        ",
"                 ,6ky&      &46-10ul,66,        ",
"                 Ou0<>       o66y<ulw<66&       ",
"                  *kk5       >66By7=xu664       ",
"                   <<M4      466lj<Mxu66o       ",
"                   *>>       +66uv,zN666*       ",
"                              566,xxj669        ",
"                              4666FF666>        ",
"                               >966666M         ",
"                                oM6668+         ",
"                                  *4            ",
"                                                ",
"                                                "
]
        self.pixbuf_bro = gtk.gdk.pixbuf_new_from_xpm_data(BrouettePleine_xpm)
        gtk.Window.__init__(self)
        try:
            self.set_screen(parent.get_screen())
        except AttributeError:
            self.connect('destroy', lambda *w: gtk.main_quit())
 
        self.set_title(self.__class__.__name__)
        self.set_default_size(450, 450)
        self.set_border_width(0)
 
        view = gtk.TextView()
        view.set_wrap_mode(gtk.WRAP_WORD) #c'est utile car il y a en permanence une partie cachée pas top pour une aide
        view.connect("key-press-event", self.key_press_event)
        view.connect("event-after", self.event_after)
        view.connect("motion-notify-event", self.motion_notify_event)
        view.connect("visibility-notify-event", self.visibility_notify_event)
 
        buffer = view.get_buffer()
 
        sw = gtk.ScrolledWindow()
        sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        self.add(sw)
        sw.add(view)
 
        self.show_page(buffer, 1)
 
        self.show_all()
        self.save(view.get_buffer())
        self.load()
 
    # Links can be activated by pressing Enter.
    def key_press_event(self, text_view, event):
        if (event.keyval == gtk.gdk.Return or
            event.keyval == gtk.gdk.KP_Enter):
            buffer = text_view.get_buffer()
            iter = buffer.get_iter_at_mark(buffer.get_insert())
            self.follow_if_link(text_view, iter)
        return False
 
    # Links can also be activated by clicking.
    def event_after(self, text_view, event):
        if event.type != gtk.gdk.BUTTON_RELEASE:
            return False
        if event.button != 1:
            return False
        buffer = text_view.get_buffer()
 
        # we shouldn't follow a link if the user has selected something
        try:
            start, end = buffer.get_selection_bounds()
        except ValueError:
            # If there is nothing selected, None is return
            pass
        else:
            if start.get_offset() != end.get_offset():
                return False
 
        x, y = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
            int(event.x), int(event.y))
        iter = text_view.get_iter_at_location(x, y)
 
        self.follow_if_link(text_view, iter)
        return False
 
 
    # Looks at all tags covering the position (x, y) in the text view,
    # and if one of them is a link, change the cursor to the "hands" cursor
    # typically used by web browsers.
    def set_cursor_if_appropriate(self, text_view, x, y):
        hovering = False
 
        buffer = text_view.get_buffer()
        iter = text_view.get_iter_at_location(x, y)
 
        tags = iter.get_tags()
        for tag in tags:
            page = tag.get_data("page")
            if page != 0:
                hovering = True
                break
 
        if hovering != self.hovering_over_link:
            self.hovering_over_link = hovering
 
        if self.hovering_over_link:
            text_view.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(self.hand_cursor)
        else:
            text_view.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(self.regular_cursor)
 
    # Update the cursor image if the pointer moved.
    def motion_notify_event(self, text_view, event):
        x, y = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
            int(event.x), int(event.y))
        self.set_cursor_if_appropriate(text_view, x, y)
        text_view.window.get_pointer()
        return False
 
    # Also update the cursor image if the window becomes visible
    # (e.g. when a window covering it got iconified).
    def visibility_notify_event(self, text_view, event):
        wx, wy, mod = text_view.window.get_pointer()
        bx, by = text_view.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET, wx, wy)
 
        self.set_cursor_if_appropriate (text_view, bx, by)
        return False
 
    def insert_link(self, buffer, iter, text, page):
        ''' Inserts a piece of text into the buffer, giving it the usual
            appearance of a hyperlink in a web browser: blue and underlined.
            Additionally, attaches some data on the tag, to make it recognizable
            as a link.
        '''
        tag = buffer.create_tag(None,
            foreground="blue", underline=pango.UNDERLINE_SINGLE)
        tag.set_data("page", page)
        buffer.insert_with_tags(iter, text, tag)
 
 
    def show_page(self, buffer, page):
        ''' Fills the buffer with text and interspersed links. In any real
            hypertext app, this method would parse a file to identify the links.
        '''
        buffer.set_text("", 0)
        iter = buffer.get_iter_at_offset(0)
        if page == 1:
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert(iter, "Some text to show that simple ")
            self.insert_link(buffer, iter, "hypertext", 3)
            buffer.insert(iter, " can easily be realized with ")
            self.insert_link(buffer, iter, "tags", 2)
            buffer.insert(iter, ".")
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_yel)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_bro)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_yel_b)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_blue)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_green)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
            buffer.insert(iter, "\n")
            buffer.insert_pixbuf(iter, self.pixbuf_pink)
            buffer.insert(iter, 'Inserts a piece of text into the buffer, giving it the usual'
            'appearance of a hyperlink in a web browser: blue and underlined.'
            'Additionally, attaches some data on the tag, to make it recognizable'
            'as a link')
 
        elif page == 2:
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert(iter,
                "A tag is an attribute that can be applied to some range of text. "
                "For example, a tag might be called \"bold\" and make the text inside "
                "the tag bold. However, the tag concept is more general than that "
                "tags don't have to affect appearance. They can instead affect the "
                "behavior of mouse and key presses, \"lock\" a range of text so the "
                "user can't edit it, or countless other things.\n", -1)
            self.insert_link(buffer, iter, "Go back", 1)
        elif page == 3:
            tag = buffer.create_tag(None, weight=pango.WEIGHT_BOLD)
            buffer.insert_pixbuf(iter, self.pixbuf_red)
            buffer.insert_with_tags(iter, "hypertext:\n", tag)
            buffer.insert(iter,
                "machine-readable text that is not sequential but is organized "
                "so that related items of information are connected.\n")
            self.insert_link(buffer, iter, "Go back", 1)
 
 
    def follow_if_link(self, text_view, iter):
        ''' Looks at all tags covering the position of iter in the text view,
            and if one of them is a link, follow it by showing the page identified
            by the data attached to it.
        '''
        tags = iter.get_tags()
        for tag in tags:
            page = tag.get_data("page")
            if page != 0:
                self.show_page(text_view.get_buffer(), page)
                break
 
    def create_tags(self, text_buffer):
        '''
        Create a bunch of tags. Note that it's also possible to
        create tags with gtk.text_tag_new() then add them to the
        tag table for the buffer, text_buffer.create_tag() is
        just a convenience function. Also note that you don't have
        to give tags a name; pass None for the name to create an
        anonymous tag.
 
        In any real app, another useful optimization would be to create
        a GtkTextTagTable in advance, and reuse the same tag table for
        all the buffers with the same tag set, instead of creating
        new copies of the same tags for every buffer.
 
        Tags are assigned default priorities in order of addition to the
        tag table. That is, tags created later that affect the same text
        property affected by an earlier tag will override the earlier
        tag. You can modify tag priorities with
        gtk.text_tag_set_priority().
        '''
        text_buffer.create_tag("heading",
                    weight=pango.WEIGHT_BOLD,
                    size=15 * pango.SCALE)
 
        text_buffer.create_tag("italic", style=pango.STYLE_ITALIC)
        text_buffer.create_tag("bold", weight=pango.WEIGHT_BOLD)
        text_buffer.create_tag("heading",weight=pango.WEIGHT_BOLD,size=15 * pango.SCALE)
        text_buffer.create_tag("big", size=20 * pango.SCALE)# points times the pango.SCALE factor
        text_buffer.create_tag("huge",  size=40 * pango.SCALE)
 
        text_buffer.create_tag("xx-small", scale=pango.SCALE_XX_SMALL)
        text_buffer.create_tag("x-large", scale=pango.SCALE_X_LARGE)
        text_buffer.create_tag("monospace", family="monospace")
 
 
        text_buffer.create_tag("blue_foreground", foreground="blue")
        text_buffer.create_tag("brown_foreground", foreground="brown")
        text_buffer.create_tag("cyan_foreground", foreground="cyan")
        text_buffer.create_tag("green_foreground", foreground="green")
        text_buffer.create_tag("magenta_foreground", foreground="magenta")
        text_buffer.create_tag("orange_foreground", foreground="orange")
        text_buffer.create_tag("pink_foreground", foreground="pink")
        text_buffer.create_tag("purple_foreground", foreground="purple")
        text_buffer.create_tag("red_foreground", foreground="red")
        text_buffer.create_tag("yellow_foreground", foreground="yellow")
 
        text_buffer.create_tag("darkblue_foreground", foreground="darkblue")
        text_buffer.create_tag("darkgreen_foreground", foreground="darkgreen")
        text_buffer.create_tag("darkred_foreground", foreground="darkred")
 
        text_buffer.create_tag("blue_background", background="blue")
        text_buffer.create_tag("brown_background", background="brown")
        text_buffer.create_tag("cyan_background", background="cyan")
        text_buffer.create_tag("green_background", background="green")
        text_buffer.create_tag("magenta_background", background="magenta")
        text_buffer.create_tag("orange_background", background="orange")
        text_buffer.create_tag("pink_background", background="pink")
        text_buffer.create_tag("purple_background", background="purple")
        text_buffer.create_tag("gray_background", background="gray")
        text_buffer.create_tag("red_background", background="red")
        text_buffer.create_tag("yellow_background", background="yellow")
        text_buffer.create_tag("white_background", background="white")
 
        text_buffer.create_tag("darkgray_background", background="darkgray")
        text_buffer.create_tag("light_blue_background", background="light blue")
        text_buffer.create_tag("light_cyan_background", background="light cyan")
        text_buffer.create_tag("light_green_background", background="light green")
        text_buffer.create_tag("light_magenta_background", background="light magenta")
        text_buffer.create_tag("light_orange_background", background="light orange")
        text_buffer.create_tag("light_pink_background", background="light pink")
        text_buffer.create_tag("light_red_background", background="light red")
        text_buffer.create_tag("light_yellow_background", background="light yellow")
 
        stipple = gtk.gdk.bitmap_create_from_data(None,
            gray50_bits, gray50_width, gray50_height)
 
        text_buffer.create_tag("background_stipple", background_stipple=stipple)
        text_buffer.create_tag("foreground_stipple", foreground_stipple=stipple)
 
 
        text_buffer.create_tag("big_gap_before_line", pixels_above_lines=30)
        text_buffer.create_tag("big_gap_after_line", pixels_below_lines=30)
        text_buffer.create_tag("double_spaced_line", pixels_inside_wrap=10)
 
        text_buffer.create_tag("not_editable", editable=False)
        text_buffer.create_tag(None, invisible=True)
        text_buffer.create_tag(editable=False, foreground="purple") #balise_non_editable
 
        text_buffer.create_tag("word_wrap", wrap_mode=gtk.WRAP_WORD)
        text_buffer.create_tag("char_wrap", wrap_mode=gtk.WRAP_CHAR)
        text_buffer.create_tag("no_wrap", wrap_mode=gtk.WRAP_NONE)
 
        text_buffer.create_tag("center", justification=gtk.JUSTIFY_CENTER)
        text_buffer.create_tag("right_justify", justification=gtk.JUSTIFY_RIGHT)
        text_buffer.create_tag("left_justify", justification=gtk.JUSTIFY_LEFT)
        text_buffer.create_tag("fill_justify", justification=gtk.GTK_JUSTIFY_FILL)
 
        text_buffer.create_tag("wide_margins",left_margin=50, right_margin=50)
        text_buffer.create_tag("strikethrough", strikethrough=True) #barre
 
 
        text_buffer.create_tag("underline",underline=pango.UNDERLINE_SINGLE)
        text_buffer.create_tag("double_underline", underline=pango.UNDERLINE_DOUBLE)
 
        text_buffer.create_tag("superscript",   # exposant
                    rise=10 * pango.SCALE,      # 10 pixels
                    size=8 * pango.SCALE)       #  8 points
 
        text_buffer.create_tag("subscript",     # subexposant
                    rise=-10 * pango.SCALE,     # 10 pixels
                    size=8 * pango.SCALE)       #  8 points
 
        text_buffer.create_tag("rtl_quote",
                    wrap_mode=gtk.WRAP_WORD, direction=gtk.TEXT_DIR_RTL,
                    indent=30, left_margin=20, right_margin=20)
 
 
        '''
        NBRE_COULEURS = 16
        ECHELLE_PANGO = 1024
        tabledesbalises = self.get_tag_table()
        self.comptref = 0
        self.nomfichier = None
        self.sanstitre_num = -1
        self.balises_couleurs = []
        self.marqueur_cycle_couleurs = 0
        self.teinte_depart = 0.0
 
        for i in range(Buffer.NBRE_COULEURS):
            balise = self.create_tag()
            self.balises_couleurs.append(balise)
        '''
 
 
def main():
    HypertextDemo()
    gtk.main()
 
if __name__ == '__main__':
    main()

Si une bonne âme peut se pencher sur le pb du chargement

[turboiii]

Bonjour
Personne n'a la moindre idée du problème que j'ai posé

[turboiii]

Bonjour je fais remonter le topic à la une...:
Je suis toujours en galère sur ce point
j'ai un objet Textview qui n'est pas persistant avec l'usage de Shelve

j'ai gratté et trouvé que selon le type d'objet il faut utilisé le bon protocole.

j'utilise python 2.6.5 et le meilleurs protocole est 2 les autres plantent.

Je pense que c'est une problématique générale de persistance d'objet avec un cas particulier sur une instance de TextView.
J'ai mis ce topic aussi sur le forum python général......

Le symptôme , je stocke bien l'objet dans un fichier mais lorsque je veux recharger l'objet je n'ai pas d'affichage.
Quelqu'un aurait-il une piste???

[turboiii]

Bonjour
Je totalise 154 visites sur ma question et je n'ai aucun embryon de réponse.
Vous êtes vraiment très dur avec moi.......