我正在學習Python的win32com,我有一個奇怪的問題。win32com.client.Dispatch工作,但不win32com.client.gencache.EnsureDispatch
我試圖在詞典列表中導出Outlook聯繫人。我的代碼完全適用於win32com.client.Dispatch(「Outlook.Application)」,但它返回的聯繫人數量爲win32com.client.gencache.EnsureDispatch(「Outlook.Application)」,應該是更快和更「安全」的。這裏是我的代碼:
class MapiImport():
def __init__(self):
self.olApp = win32com.client.Dispatch("Outlook.Application")
self.namespace = self.olApp.GetNamespace(u"MAPI")
# olFolderContacts = 10 :
self.mapiContacts = self.namespace.GetDefaultFolder(10).Items
def getContacts(self, *fields):
contacts = []
# Class == 40 is ContactItem
# Class == 69 is DistListItem
# Exclude ditribution list and others objects != ContactItem
for contact in filter(lambda x: x.Class == 40,self.mapiContacts) :
if not fields :
ctact = dict((x.Name,x.Value) for x in contact.ItemProperties)
else :
ctact = {}
for field in fields :
itemProp = contact.itemProperties[field]
ctact[field] = itemProp.Value
contacts.append(ctact)
return contacts
#====TEST SCRIPT====
myMAPI = MapiImport()
fields = (u"LastName",u"FirstName",u"Companies",
u"HomeTelephoneNumber",u"Home2TelephoneNumber",
u"MobileTelephoneNumber",
u"BusinessTelephoneNumber",u"Business2TelephoneNumber",
u"Email1Address",u"Email2Address",u"Email3Address",
u"HomeAddress",u"BusinessAddress",
u"Birthday",u"Anniversary",
u"Body")
print(myMAPI.getContacts(*fields))
所以,當我更換:
olApp = win32com.client.Dispatch("Outlook.Application")
有了:
olApp = win32com.client.gencache.EnsureDispatch("Outlook.Application")
它返回的錯誤:
Traceback (most recent call last):
File "D:\Documents and Settings\da7950\Mes documents\Dropbox\cheetahImporter\mapiImport.py", line 42, in <module>
print(myMAPI.getContacts(*fields))
File "D:\Documents and Settings\da7950\Mes documents\Dropbox\cheetahImporter\mapiImport.py", line 19, in getContacts
for contact in filter(lambda x: x.Class == 40,self.mapiContacts) :
File "D:\Documents and Settings\da7950\Mes documents\Python27\lib\site-packages\win32com\gen_py\00062FFF-0000-0000-C000-000000000046x0x9x2\_Items.py", line 122, in __getitem__
return self._get_good_object_(self._oleobj_.Invoke(*(81, LCID, 1, 1, item)), "Item")
com_error: (-2147352567, "Une exception s'est produite.", (4096, u'Microsoft Office Outlook', u'Index de la matrice en dehors des limites.', None, 0, -2147352567), None)
該消息意味着「矩陣指數越界「。最棘手的是我調用EnsureDispatch後,win32com.client.Dispatch不再有效。我必須卸載pywin32並重新安裝它......
我與Python2.7.3 64位運行與Outlook 2007 32位
感謝
有什麼優點和早期綁定的缺點(EnsureDispatch)和後期綁定(Disaptch)?如果我保持這樣的代碼(它可以在很多平臺上運行),可以嗎? – franckgaga 2012-07-26 13:44:14
IMO'win32com.client.Dispatch' does not work'because you have generated cache in'Temp \ gen_py' folder – Winand 2016-04-19 05:48:51