Bonsoir,
Je me suis mis en tête de créer un script python pour télécharger les gribs sur le site de la NOAA puis de les manipuler via cdo (Climate Data Operator).
A la main j'obtient bien le résultat voulu mais c'est long et fastidieux.

J'en suis rendu aux téléchargements des fichiers, j'arrive à générer les url qu'il faut mais je m'y perd complètement entre les méthodes wget, curl, requests & urllib.
Qu'est ce qui est le plus approprié ?

Petite précision je ne connaissais quasiment rien au Python il y a moins de 48h et à force de lire les manuels et autres exemples de code, y'a plus rien qui veut rentrer ...
Je suppose que le code est loin d'être parfait si vous remarquez des aberrations faite le moi savoir je tacherais de corriger le tir.

Merci pour vos lumières 😉

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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from datetime import datetime, timedelta
from os import listdir, makedirs, name, path, remove, removedirs
 
 
## DateTime UTC
cDT = datetime.utcnow()
pDT = cDT - timedelta(days=1)
# print('Current DATETIME =', cDT,
#      '\nPrevious DATETIME =', pDT)
 
 
## Date
cDate = cDT.strftime('%Y''%m''%d')
pDate = pDT.strftime('%Y''%m''%d')
# print('Current Date =', cDate,
#      '\nPrevious Date =', pDate)
 
 
## Hour
cHourUTC = cDT.strftime('%H'':''%M')
# print ('Current Hour =', cHourUTC)
 
 
## Parameters Url
# ["Date of current TZ", "Current TZ", "Date of previous TZ", "Previous TZ", "Obsolete TZ"]
def paramUrl(cHourUTC):
    if '03:30' <= cHourUTC < '09:30':
        cTZ = '00'
        pTZ = '18'
        oTZ = '12'
        return [cDate, cTZ, pDate, pTZ, oTZ]
    elif '09:30' <= cHourUTC < '15:30':
        cTZ = '06'
        pTZ = '00'
        oTZ = '18'
        return [cDate, cTZ, cDate, pTZ, oTZ]
    elif '15:30' <= cHourUTC < '21:30':
        cTZ = '12'
        pTZ = '06'
        oTZ = '00'
        return [cDate, cTZ, cDate, pTZ, oTZ]
    else:
        cTZ = '18'
        pTZ = '12'
        oTZ = '06'
        return [cDate, cTZ, cDate, pTZ, oTZ]
#print('Date of current TZ =', paramUrl(cHourUTC)[0],
#      '\nCurrent TZ =', paramUrl(cHourUTC)[1],
#      '\nDate of previous TZ =', paramUrl(cHourUTC)[2],
#      '\nPrevious TZ =', paramUrl(cHourUTC)[3],
#      '\nObsolete TZ =', paramUrl(cHourUTC)[4])
 
 
## Directories
# Default PATH / directories
defPath = path.expanduser('~')
 
dir_oTZ = paramUrl(cHourUTC)[4]
dir_pTZ = paramUrl(cHourUTC)[3]
dir_cTZ = paramUrl(cHourUTC)[1]
dir_grb = 'grb'
 
path_oTZ = path.join(defPath, 'NoaaDownloader', dir_oTZ)
path_pTZ = path.join(defPath, 'NoaaDownloader', dir_pTZ)
path_cTZ = path.join(defPath, 'NoaaDownloader', dir_cTZ)
path_grb = path.join(defPath, 'NoaaDownloader', dir_grb)
 
# Remove Obsolete files & directory if exist
def delFilDir(dirPath):
    if path.isdir(dirPath) == True:
        files = listdir(dirPath)
        for i in range(0, len(files)):
            if name == 'nt':
                remove(dirPath + '\\' + files[i])
            else:
                remove(dirPath + '/' + files[i])
        removedirs(dirPath)
 
delFilDir(path_oTZ)
 
# Create directories if not exist
makedirs(path_pTZ, exist_ok=True)
makedirs(path_cTZ, exist_ok=True)
makedirs(path_grb, exist_ok=True)
 
## Download TM previous TZ & current TZ
Gfs1TM = ['000', '003', '006', '009', '012', '015', '018', '021', '024',
          '027', '030', '033', '036', '039', '042', '045', '048',
          '051', '054', '057', '060', '063', '066', '069', '072',
          '075', '078', '081', '084', '087', '090', '093', '096',
          '099', '102', '105', '108', '111', '114', '117', '120',
          '123', '126', '129', '132', '135', '138', '141', '144',
          '147', '150', '153', '156', '159', '162', '165', '168',
          '171', '174', '177', '180', '183', '186', '189', '192',
          '195', '198', '201', '204', '207', '210', '213', '216',
          '219', '222', '225', '228', '231', '234', '237', '240',
          '243', '246', '249', '252', '255', '258', '261', '264',
          '267', '270', '273', '276', '279', '282', '285', '288',
          '291', '294', '297', '300', '303', '306', '309', '312',
          '315', '318', '321', '324', '327', '330', '333', '336',
          '339', '342', '345', '348', '351', '354', '357', '360',
          '363', '366', '369', '372', '375', '378', '381', '384']
 
for pTM in Gfs1TM:
    # Download 129 TM of previous TZ
    pUrlNoaa = 'https://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_1p00.pl?' + \
               'file=gfs.t' + paramUrl(cHourUTC)[3] + 'z.pgrb2.1p00.f' + pTM + \
               '&lev_10_m_above_ground=on' + \
               '&var_UGRD=on&var_VGRD=on' + \
               '&leftlon=0&rightlon=360' + \
               '&toplat=90&bottomlat=-90' + \
               '&dir=%2Fgfs.' + paramUrl(cHourUTC)[2] + '%2F' + paramUrl(cHourUTC)[3]
    #print('TM' + pTM + ' pTZ =>' + pUrlNoaa)
 
for cTM in Gfs1TM:
    # Download 129 TM of current TZ
    # If TM not available, wait 60s
    cUrlNoaa = 'https://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_1p00.pl?' + \
               'file=gfs.t' + paramUrl(cHourUTC)[1] + 'z.pgrb2.1p00.f' + cTM + \
               '&lev_10_m_above_ground=on' + \
               '&var_UGRD=on&var_VGRD=on' + \
               '&leftlon=0&rightlon=360' + \
               '&toplat=90&bottomlat=-90' + \
               '&dir=%2Fgfs.' + paramUrl(cHourUTC)[0] + '%2F' + paramUrl(cHourUTC)[1]
 
    if cTM == '006':
        #print('TM' + cTM + ' cTZ Create 14 TM003 =>' + cUrlNoaa)
        continue
    if cTM == '024':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '048':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '072':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '096':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '120':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '144':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '168':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '192':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '216':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '240':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '264':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '288':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '312':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '336':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '360':
        #print('TM' + cTM + ' cTZ Create partial grib =>' + cUrlNoaa)
        continue
    if cTM == '384':
        #print('TM' + cTM + ' cTZ Create full grib =>' + cUrlNoaa)
        continue
    #print('TM' + cTM + ' cTZ =>' + cUrlNoaa)