relancer une def toute les minutes

**cFranssen** · 19/02/2011, 18h55

bonjour, je fais un logiciel en python dans le quel je récupère les données d'une station météo. j'aimerais savoir comment je peu relancer la partie du programme toute les minutes pour mettre les données a jours.

**airod** · 19/02/2011, 19h40

regarde du coté de time.sleep() du module time ca devrait t'aider.

**PauseKawa** · 19/02/2011, 22h22

Bonsoir,

Envoyé par cFranssen

bonjour, je fais un logiciel en python dans le quel je récupère les données d'une station météo. j'aimerais savoir comment je peu relancer la partie du programme toute les minutes pour mettre les données a jours.

Envoyé par airod

regarde du coté de time.sleep() du module time ca devrait t'aider.

Si le but principal en est de récupérer les données oui. Sinon time.sleep() est bloquant (i.e Le programme principal s'arrête durant le time.sleep. Il existe des options, style threads entre autre).
Des précessions sur le sujet cFranssen (voir du code) ?

@+

**cFranssen** · 20/02/2011, 08h30

re, voilà le code de l'affichage graphique et autre qui va chercher les données dans le 2ème code:

Code :

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# -*- coding:Utf-8 -*-
import gtk	
import ws3500
import sqlite3
 
class direct:
 
	def T_Int(self,IntTemp):
		if IntTemp>50:
			t=50
		else:
			t=IntTemp
		b=(t/float(100))+0.5
		a=str(t)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
	def T_Ext(self, ExtTemp):
		if ExtTemp>50:
			t=50
		else:
			t=ExtTemp
		b=(t/float(100))+0.5
		a=str(t)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
	def Pt_Ros(self, PtRosee):
		if PtRosee>50:
			t=50
		else:
			t=PtRosee
		b=(t/float(10))
		a=str(t)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
	def H_Int(self, IntHum):
		t=IntHum
		b=(t/float(100))
		a=str(t)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
	def H_Ext(self, ExtHum):
		t=ExtHum
		b=(t/float(100))
		a=str(t)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
	def P_Int(self, IntPress):
		v=1050-IntPress
		t=100-v
		b=(t/float(100))
		a=str(IntPress)
		barreProgression = gtk.ProgressBar() #Creation d'une barre de progression
		barreProgression.set_text(a) #Définir un texte pour la barre
		barreProgression.set_fraction(b) #Définir un nouveau pourcentage
		barreProgression.set_orientation(gtk.PROGRESS_BOTTOM_TO_TOP)
		boiteV.pack_start(barreProgression, True, True, True)
 
class bd:
	def __init__(self):
		self.conn = sqlite3.connect('bd_ws3500')
		self.c = self.conn.cursor()
 
	def open(self):
		self.c.execute("create table if not exists data (IntTemp real, ExtTemp real, PtRosee real, IntHum int, ExtHum int, IntPress real)")
 
	def insert(self, IntTemp, ExtTemp, PtRosee, IntHum, ExtHum, IntPress):
		self.c.execute("insert into data values (%s, %s, %s, %s, %s, %s)" %(IntTemp, ExtTemp, PtRosee, IntHum, ExtHum, IntPress))
		self.conn.commit()
 
	def select(self):
		self.c.execute('select * from data')
 
		for row in self.c:
			print row
 
 
if __name__ == "__main__":
	fenetre = gtk.Window(gtk.WINDOW_TOPLEVEL)
	fenetre.set_title("Pymeteo by cFranssen")
	fenetre.set_position(gtk.WIN_POS_CENTER)
	fenetre.connect("destroy", gtk.main_quit)
	fenetre.set_border_width(20)
	boiteV = gtk.HBox(False, 10)
	boiteV.set_size_request(300, 400)
	fenetre.add(boiteV)
	statmet = ws3500.Station()
	c1 = direct()
	c2 = bd()
 
	IntTemp = statmet.getIntTemp()
	c1.T_Int(IntTemp)
 
	ExtTemp = statmet.getExtTemp()
	c1.T_Ext(ExtTemp)
 
	PtRosee = statmet.getPtRosee()
	c1.Pt_Ros(PtRosee)
 
	IntHum = statmet.getIntHum()
	c1.H_Int(IntHum)
 
	ExtHum = statmet.getExtHum()
	c1.H_Ext(ExtHum)
 
	IntPress = statmet.getIntPress()
	c1.P_Int(IntPress)
 
	c2.open()
 
	c2.insert(IntTemp, ExtTemp, PtRosee, IntHum, ExtHum, IntPress)
 
	c2.select()
 
 
	print statmet.getTendency()
 
 
	fenetre.show_all()
	gtk.main()

celui qui va chercher les données dans la station météo:

Code :

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# -*- coding:Utf-8 -*-
 
import time
import serial
 
DELAY_CONST = 0.001
MAXRETRIES = 10
HISTORY_BUFFER_ADR = 0x1A0
HISTORY_REC_NO = 1796
SETBIT = 0x12
UNSETBIT = 0x32
 
DEBUG = 0
 
def debug(s, level = 2, tab = 0):
	if DEBUG >= level:
		print " "*tab, s
 
def string2hex(s):
	return " ".join(map(lambda(x):hex(ord(x)), s))
 
class WS3500():
	def __init__(self, ser):
		self.ser = ser
		self._init = False
 
	def _initialize(self):
		debug("initialize()", level=1)
		buff = "U"*2000
 
		self.ser.write(buff)
 
		debug("-DTR", tab=1)
		self.ser.setDTR(0)
		debug("-RTS", tab=1)
		self.ser.setRTS(0)
 
		INIT_WAIT = 500
		i = 0
		while i < INIT_WAIT and not self.ser.getDSR():
			i += 1
			time.sleep(DELAY_CONST)
		if i == INIT_WAIT:
			debug("timeout 1", level=1)
			return 0
		i = 0
 
		time.sleep(DELAY_CONST)
		while i < INIT_WAIT and self.ser.getDSR():
			i += 1
			time.sleep(DELAY_CONST)
		if i != INIT_WAIT:
			debug("+RTS", tab=1)
			self.ser.setRTS(1)
			debug("+DTR", tab=1)
			self.ser.setDTR(1)
		else:
			debug("timeout 2", level=1)
			return 0
 
		self.ser.write(buff)
 
		self._init = True
 
		return 1
 
	def _read_safe(self, address, number):
		debug("read_safe(%i, %i)" % (address, number), level=1)
		readdata = ""
		readdata2 = ""
		nb_tests = 1
		for j in range(MAXRETRIES):
			self._write_data(address, 0, None, tab=1)
			readdata = self._read_data(number, tab=1)
 
			if nb_tests == 2:
				self._write_data(address, 0, None, tab=1)
				readdata2 = self._read_data(number, tab=1)
 
				if readdata == readdata2:
					if readdata == chr(0) * number or readdata == "":
						debug("--> only zeros", level=1, tab=1)
						self._init = False
						time.sleep(0.1)
						self._initialize()
					else:
						break
				else:
					debug("--> not identical", level=1, tab=1)
			else:
				if readdata == chr(0) * number or readdata == "":
					debug("--> only zeros", level=1, tab=1)
				else:
					break
 
		if j == MAXRETRIES:
			return -1
 
		return readdata
 
	def _read_data(self, number, tab=0):
		debug("read_data(%i)" % number, level=1, tab=tab)
		command = 0xa1
		readdata = ""
 
		if self._write_byte(command, tab=tab+1):
			for i in range(number):
				b = self._read_byte(tab=tab+1)
				readdata = readdata + chr(b)
				if i + 1 < number:
					self._read_next_byte_seq(tab=tab+1)
 
			self._read_last_byte_seq(tab=tab+1)
 
			debug("--> %s" % string2hex(readdata), level=1, tab=tab)
 
			return readdata
		else:
			debug("--> erreur read_data", level=1, tab=tab)
			return ""
 
	def _write_data(self, address, number, writedata, tab=0):
		debug("write_data(%s, %i)" % (address, number), level=1, tab=tab)
		command = 0xa0
		i = -1
 
		self._write_byte(command, tab=tab+1)
		self._write_byte(address/256, tab=tab+1)
		self._write_byte(address%256, tab=tab+1)
 
		if writedata != None:
			for i in range(number):
				self._write_byte(ord(writedata[i]), tab=tab+1)
 
		debug("-DTR", tab=tab)
		self.ser.setDTR(0)
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
		debug("+RTS", tab=tab)
		self.ser.setRTS(1)
		debug("+DTR", tab=tab)
		self.ser.setDTR(1)
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
 
		return i
 
	def _read_next_byte_seq(self, tab=0):
		debug("read_next_byte_seq()", level=1, tab=tab)
		self._write_bit(0)
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
 
	def _read_last_byte_seq(self, tab=0):
		debug("read_last_byte_seq()", level=1, tab=tab)
		debug("+RTS", tab=tab)
		self.ser.setRTS(1)
		debug("-DTR", tab=tab)
		self.ser.setDTR(0)
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
		debug("+RTS", tab=tab)
		self.ser.setRTS(1)
		debug("+DTR", tab=tab)
		self.ser.setDTR(1)
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
 
	def _read_bit(self, tab=0):
		debug("read_bit()", level=1, tab=tab)
		debug("-DTR", tab=tab)
		self.ser.setDTR(0)
		status = self.ser.getCTS()
		debug("CTS ->" + str(status), tab=tab)
		debug("+DTR", tab=tab)
		self.ser.setDTR(1)
 
		debug("--> %i" % int(not status), level=1, tab=tab)
 
		return int(not status)
 
	def _write_bit(self, bit, tab=0):
		debug("write_bit(%i)" % bit, level=1, tab=tab)
		if bit:
			debug("->-RTS", tab=tab)
			self.ser.setRTS(0)
		else:
			debug("->+RTS", tab=tab)
			self.ser.setRTS(1)
		debug("-DTR", tab=tab)
		self.ser.setDTR(0)
		debug("+DTR", tab=tab)
		self.ser.setDTR(1)
 
	def _read_byte(self, tab=0):
		debug("read_byte()", level=1, tab=tab)
		byte = 0
 
		for i in range(8):
			byte *= 2
			byte += self._read_bit(tab=tab+1)
 
		debug("--> %i - %s" % (byte, hex(byte)), level=1, tab=tab)
 
		return byte
 
	def _write_byte(self, byte, tab=0):
		debug("write_byte(%i)" % byte, level=1, tab=tab)
		for i in range(8):
			self._write_bit(byte & 0x80, tab=tab+1)
			byte <<= 1
			byte &= 0xff
 
		debug("-RTS", tab=tab)
		self.ser.setRTS(0)
		status = self.ser.getCTS()
		debug("CTS->" + str(status), tab=tab)
		debug("-DTR", tab=tab)
		self.ser.setDTR(0)
		debug("+DTR", tab=tab)
		self.ser.setDTR(1)
		debug("---> %i" % int(status), level=1, tab=tab)
		if status:
			return 1
		else:
			return 0
 
	def conv_temp(self, data):
		return ((ord(data[1]) & 0xF) * 10 + (ord(data[0]) >> 4) + (ord(data[0]) & 0xF) / 10.0) - 40.0
 
	def conv_datetime(self, data):
		minute = (ord(data[0]) >> 4) + (ord(data[1]) & 0xF) * 10
		heure = (ord(data[1]) >> 4) + (ord(data[2]) & 0xF) * 10
		jour = (ord(data[2]) >> 4) + (ord(data[3]) & 0xF) * 10
		mois = (ord(data[3]) >> 4) + (ord(data[4]) & 0xF) * 10
		annee = 2000 + (ord(data[4]) >> 4) + (ord(data[5]) & 0xF) * 10
		return "%04i-%02i-%02i %02i:%02i" % (annee, mois, jour, heure, minute)
 
	def conv_datetime2(self, data):
		minute = (ord(data[0]) >> 4) * 10 + (ord(data[0]) & 0xF)
		heure = (ord(data[1]) >> 4) * 10 + (ord(data[1]) & 0xF)
		jour = (ord(data[2]) >> 4) * 10 + (ord(data[2]) & 0xF)
		mois = (ord(data[3]) >> 4) * 10 + (ord(data[3]) & 0xF)
		annee = 2000 + (ord(data[4]) >> 4) * 10 + (ord(data[4]) & 0xF)
		return "%04i-%02i-%02i %02i:%02i" % (annee, mois, jour, heure, minute)
 
	def getTemp(self, address, meteo_data = None):
		l = 2
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return self.conv_temp(data_read)
 
	def getTempBCD(self, address, meteo_data = None):
		l = 2
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return (ord(data_read[1]) >> 4) * 10 + (ord(data_read[1] )& 0xF) + (ord(data_read[0]) >> 4) / 10.0 - 40.0
 
	def getDateTime(self, address, meteo_data = None):
		l = 6
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return self.conv_datetime(data_read)
 
	def getDateTime2(self, address, meteo_data = None):
		l = 5
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return self.conv_datetime2(data_read)
 
	def getHumidity(self, address, meteo_data = None):
		l = 1
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return (ord(data_read[0]) >> 4) * 10 + (ord(data_read[0]) & 0xf)
 
	def getPressure(self, address, meteo_data = None):
		l = 3
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return (ord(data_read[2]) & 0xF) * 1000 + (ord(data_read[1]) >> 4) * 100 + (ord(data_read[1]) & 0xF) * 10 + (ord(data_read[0]) >> 4) + (ord(data_read[0]) & 0xF) / 10.0
 
	def temp_int(self, meteo_data = None):
		address = 0x26
 
		return self.getTemp(address, meteo_data)
 
	def temp_ext(self, meteo_data = None):
		address = 0x3D
 
		return self.getTemp(address, meteo_data)
 
	def temperature_indoor_minmax(self, meteo_data = None):
		address_min = 0x28
		address_max = 0x2B
		address_mintime = 0x2C
		address_maxtime = 0x31
 
		data = []
		data.append(self.getTempBCD(address_min, meteo_data))
		data.append(self.getTemp(address_max, meteo_data))
		data.append(self.getDateTime(address_mintime, meteo_data))
		data.append(self.getDateTime(address_maxtime, meteo_data))
 
		return data
 
	def temperature_outdoor_minmax(self, meteo_data = None):
		address_min = 0x3F
		address_max = 0x42
		address_mintime = 0x43
		address_maxtime = 0x48
 
		data = []
		data.append(self.getTempBCD(address_min, meteo_data))
		data.append(self.getTemp(address_max, meteo_data))
		data.append(self.getDateTime(address_mintime, meteo_data))
		data.append(self.getDateTime(address_maxtime, meteo_data))
 
		return data
 
	def dewpoint(self, meteo_data = None):
		address = 0x6B
 
		return self.getTemp(address, meteo_data)
 
	def dewpoint_minmax(self, meteo_data = None):
		address_min = 0x6D
		address_max = 0x70
		address_mintime = 0x71
		address_maxtime = 0x76
 
		data = []
		data.append(self.getTempBCD(address_min, meteo_data))
		data.append(self.getTemp(address_max, meteo_data))
		data.append(self.getDateTime(address_mintime, meteo_data))
		data.append(self.getDateTime(address_maxtime, meteo_data))
 
		return data
 
	def humidity_indoor(self, meteo_data = None):
		address = 0x81
 
		return self.getHumidity(address, meteo_data)
 
	def humidity_outdoor(self, meteo_data = None):
		address = 0x90
 
		return self.getHumidity(address, meteo_data)
 
	def humidity_indoor_minmax(self, meteo_data = None):
		address_min = 0x82
		address_max = 0x83
		address_mintime = 0x84
		address_maxtime = 0x89
 
		data = []
		data.append(self.getHumidity(address_min, meteo_data))
		data.append(self.getHumidity(address_max, meteo_data))
		data.append(self.getDateTime2(address_mintime, meteo_data))
		data.append(self.getDateTime2(address_maxtime, meteo_data))
 
		return data
 
	def humidity_outdoor_minmax(self, meteo_data = None):
		address_min = 0x91
		address_max = 0x92
		address_mintime = 0x93
		address_maxtime = 0x98
 
		data = []
		data.append(self.getHumidity(address_min, meteo_data))
		data.append(self.getHumidity(address_max, meteo_data))
		data.append(self.getDateTime2(address_mintime, meteo_data))
		data.append(self.getDateTime2(address_maxtime, meteo_data))
 
		return data
 
	def rel_pressure(self, meteo_data = None):
		address = 0x13D
 
		return self.getPressure(address, meteo_data)
 
	def rel_pressure_minmax(self, meteo_data = None):
		address_min = 0x156
		address_max = 0x14C
		address_mintime = 0x160
		address_maxtime = 0x15B
 
		data = []
		data.append(self.getPressure(address_min, meteo_data))
		data.append(self.getPressure(address_max, meteo_data))
		data.append(self.getDateTime2(address_mintime, meteo_data))
		data.append(self.getDateTime2(address_maxtime, meteo_data))
 
		return data
 
	def abs_pressure(self, meteo_data = None):
		address = 0x138
 
		return self.getPressure(address, meteo_data)
 
	def abs_pressure_minmax(self, meteo_data = None):
		address_min = 0x5F6
		address_max = 0x5F6 + 12
		address_mintime = 0x61E
		address_maxtime = 0x61E + 5
 
		data = []
		data.append(self.getPressure(address_min, meteo_data))
		data.append(self.getPressure(address_max, meteo_data))
		data.append(self.getDateTime2(address_mintime, meteo_data))
		data.append(self.getDateTime2(address_maxtime, meteo_data))
 
		return data
 
	def tendency_forecast(self, meteo_data = None):
		address = 0x24
		l = 1
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		tendency_values = ["Constant", "Augmentant", "Diminuant"]
		forecast_values = ["Pluvieux", "Nuageux", "Ensoleillé"]
 
		return tendency_values[ord(data_read[0]) >> 4], forecast_values[ord(data_read[0]) & 0xF]
 
	def read_history_info(self):
		if not self._init:
			if not self._initialize():
				return ""
		address = 0x6B2 - 2
		l = 12
		data_read = self._read_safe(address, l)
 
		debug(string2hex(data_read), 1)
 
		data = []
 
		interval = (ord(data_read[1]) & 0xF) * 256 + ord(data_read[0]) + 1
		data.append(interval)
		countdown = ord(data_read[2])*16 + (ord(data_read[1]) >> 4) + 1
		data.append(countdown)
 
		jour = (ord(data_read[0]) >> 4) * 10 + (ord(data_read[0]) & 0xF)
		mois = (ord(data_read[1]) >> 4) * 10 + (ord(data_read[1]) & 0xF)
		annee = 2000 + (ord(data_read[2]) >> 4) * 10 + (ord(data_read[2]) & 0xF)
		data.append((jour, mois, annee))
		no_records = ord(data_read[9])
		data.append(no_records)
 
		return data
 
	def read_history_record(self, data, record_no):
		record = data
 
		minute = ((ord(record[0]) & 0xf0) >> 4)* 10 + (ord(record[0]) & 0xf)
		if minute >= 60:
			return None
		heure = ((ord(record[1]) & 0xf0) >> 4) * 10 + (ord(record[1]) & 0xf)
		jour = ((ord(record[2]) & 0xf0) >> 4) * 10 + (ord(record[2]) & 0xf)
		mois = ((ord(record[3]) & 0xf0) >> 4) * 10 + (ord(record[3]) & 0xf)
		annee = 2000 + ((ord(record[4]) & 0xf0) >> 4) * 10 + (ord(record[4]) & 0xf)
 
		temperature_indoor = ((ord(record[5]) & 0xf0) >> 4) * 10 + (ord(record[5]) & 0xf)
		temperature_indoor += (ord(record[6]) & 0xf) * 100 - 400
		##temperature_indoor /= 10.0
		temperature_outdoor = (ord(record[6]) & 0xf0) >> 4
		temperature_outdoor += ((ord(record[7]) & 0xf0) >> 4) * 100 + (ord(record[7]) & 0xf) * 10 - 400
		##temperature_outdoor /= 10.0
		pressure = ((ord(record[8]) & 0xf0) >> 4) * 10 + (ord(record[8]) & 0xf)
		pressure += ((ord(record[9]) & 0xf0) >> 4) * 1000 + (ord(record[9]) & 0xf) * 100
		pressure += (ord(record[10]) & 0xf) * 10000
		##pressure /= 10.0
		humidity_indoor = (ord(record[10]) & 0xf0) >> 4
		humidity_indoor += (ord(record[11]) & 0xf) * 10
		humidity_outdoor = (ord(record[11]) & 0xf0) >> 4
		humidity_outdoor += (ord(record[12]) & 0xf) * 10
		raincount = ord(record[12]) >> 4
		raincount += ord(record[13]) * 16
		windspeed = (ord(record[15]) & 0xf) * 256 + ord(record[14])
		##windspeed /= 10.0
		if (ord(record[17]) & 0xf) != 1 or ord(record[16]) != 0xFE:
			windgust = (ord(record[17]) & 0xf) * 256 + ord(record[16])
			##windgust /= 10.0
		else:
			windgust = -1
		winddir_degrees = ((ord(record[15]) & 0xF0)>> 4) * 22.5
 
		return ["%04i-%02i-%02i %02i:%02i" % (annee, mois, jour, heure, minute), temperature_indoor, temperature_outdoor, pressure, humidity_indoor, humidity_outdoor, raincount, windspeed, winddir_degrees]
 
	def read_history(self, delai_dernier_releve = 0):
		if not self._init:
			if not self._initialize():
				return ""
		l = 0x7fff - HISTORY_BUFFER_ADR + 1
		nb = 12 * 5 * 20
		l = 18 * nb
		nb_enreg_max = 1750
		address_max = HISTORY_BUFFER_ADR + nb_enreg_max * 18 - 1
		address = HISTORY_BUFFER_ADR
		end_of_data = False
		data = []
		j = 0
		last_record = None
		while not end_of_data and j < MAXRETRIES:
			nb_ok = 0
			j += 1
			debug("read history from address : %s" % hex(address), 1)
			if l + address > address_max:
				l = address_max - address + 1
			if l > 0:
				data_read = self._read_safe(address, l)
 
 
			if data_read:
				for i in range(nb):##range(HISTORY_REC_NO):
					try:
						record = None
						record = self.read_history_record(data_read[i*18:(i+1)*18], i)
					except Exception, e:
						print "exception :", e, i, string2hex(data_read[i*18:(i+1)*18])
						record = None
					if record is None:
						end_of_data = False
						break
					else:
						last_record = record
						nb_ok += 1
					data.append(record)
 
				address += 18 * nb_ok
				if last_record and delai_dernier_releve > 0 :
					try:
						if DateTime.DateTimeFrom(last_record[0]) + DateTime.RelativeDateTime(minutes = delai_dernier_releve) > DateTime.now():
							end_of_data = True
					except:
						pass
			else:
				debug("no data read", 1)
				end_of_data = False
 
		return data
 
	def recording_interval(self, meteo_data = None):
		## returned value by the station :
		##   0 - 1 min
		##   1 - 5 min
		##   2 - 10 min
		##   3 - 15 min
		##   4 - 20 min
		##   5 - 30 min
		##   6 - 60 min
		##   7 - 2 hours
		##   8 - 3 hours
		##   9 - 4 hours
		##   A - 6 hours
		##   B - 8 hours
		##   C - 12 hours
		##   D - 24 hours
		duree = {0 : 1,
				 1 : 5,
				 2 : 10,
				 3 : 15,
				 4 : 20,
				 5 : 30,
				 6 : 60,
				 7 : 120,
				 8 : 180,
				 9 : 240,
				 0xa : 360,
				 0xb : 480,
				 0xc : 720,
				 0xd : 1440}
		l = 1
		address = 0xE3
		if meteo_data is None:
			if not self._init:
				if not self._initialize():
					return ""
			data_read = self._read_safe(address, l)
		else:
			data_read = meteo_data[address:address+l]
 
		return duree[ord(data_read[0]) >> 4]
 
	def load_main_data(self):
		if not self._init:
			if not self._initialize():
				return ""
		address = 0x00
		l = 0x16F
		data_read = self._read_safe(address, l)
 
		return data_read
 
	def light(self, active):
		## Doesn't work
		if not self._init:
			if not self._initialize():
				return ""
		address = 0x16
		l = 1
		if active:
			writedata = chr(SETBIT)
		else:
			writedata = chr(UNSETBIT)
		self._write_data(address, l, writedata, tab=1)
 
 
class Station:
	def __init__(self):
		ser = serial.Serial('/dev/ttyS0', baudrate=300, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=None, writeTimeout=None, rtscts=0, dsrdtr=None, xonxoff=0)
 
		try:
 
			self.ws = WS3500(ser)
			self.meteo_data = self.ws.load_main_data()
 
			if self.meteo_data:
				self.t_int = self.ws.temp_int(self.meteo_data)
				self.t_ext = self.ws.temp_ext(self.meteo_data)
				self.p_rosee = self.ws.dewpoint(self.meteo_data)
				self.h_int = self.ws.humidity_indoor(self.meteo_data)
				self.h_ext = self.ws.humidity_outdoor(self.meteo_data)
				self.tendency = self.ws.tendency_forecast(self.meteo_data)
 
 
				self.p_rel = self.ws.rel_pressure(self.meteo_data)
 
		except serial.SerialException, e:
			print "SerialException :", e
		except Exception, e:
			print "Exception :", e
		finally:
			ser.close()
 
	def getError(self):
		return self.err
 
	def getIntTemp(self):
		return self.t_int
 
	def getExtTemp(self):
		return self.t_ext
 
	def getPtRosee(self):
		return self.p_rosee
 
	def getIntHum(self):
		return self.h_int
 
	def getExtHum(self):
		return self.h_ext
 
	def getTendency(self):
 
		self.tendency = self.ws.tendency_forecast(self.meteo_data)
		self.t_tendency = "le temps sera prochainement %s et %s" % (self.tendency[0], self.tendency[1])
		return self.t_tendency
 
	def getIntPress(self):
		return self.p_rel

le bute est de faire une application qui enregistre les données dans un bd SQLite (déjà fait) et de faire des graphiques (pas encore fait)

il faudrait donc que pendant que le programme va chercher les données sur la station, le reste du programme reste actif car avec un baudrate de 300 il faut environ 1minute pour avoir les données (si je met plus, la station météo m'envoie de conneries (temp= 71° et humidité=110%)

J'avais pensé a des treed mais je ne sais pas comment ça fonctionne ni si c'est ce dont j'ai besoin ici

**PauseKawa** · 20/02/2011, 08h48

Bonjour,

Voici l'exemple de la faq gtk pour ce qui est des threads.

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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import threading
import time
import gobject
import gtk
 
gobject.threads_init()
 
class MyThread(threading.Thread):
    def __init__(self, label):
        super(MyThread, self).__init__()
        self.label = label
        self.quit = False
 
    def update_label(self, counter):
        self.label.set_text("Counter: %i" % counter)
        return False
 
    def run(self):
        counter = 0
        while not self.quit:
            counter += 1
            gobject.idle_add(self.update_label, counter)
            time.sleep(0.1)
 
w = gtk.Window()
l = gtk.Label()
w.add(l)
w.show_all()
w.connect("destroy", lambda _: gtk.main_quit())
t = MyThread(l)
t.start()
 
gtk.main()
t.quit = True

A comprendre que counter est facilement remplaçable par les données de statmet.

Bon code

**PauseKawa** · 20/02/2011, 08h51

A noter : time.sleep(secs)

@+

relancer une def toute les minutes

Python

Vue hybride

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