[pywin32-bugs] [ pywin32-Bugs-3555112 ] EnsureDispatch error 2147352567 but not Dispatch

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Bugs item #3555112, was opened at 2012-08-07 07:19
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Category: com
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: franckgaga ()
Assigned to: Nobody/Anonymous (nobody)
Summary: EnsureDispatch error 2147352567 but not Dispatch

Initial Comment:
I've got a strange problem :

I'e trying to export Outlook Contacts in a List of Dictionnary. My code works perfectly with win32com.client.Dispatch("Outlook.Application). But it returns 0 contacts with win32com.client.gencache.EnsureDispatch("Outlook.Application) that is supposed to be faster and "safer". Here's my code :

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)) 


So when i replace :

olApp = win32com.client.Dispatch("Outlook.Application") 

With : 

olApp = win32com.client.gencache.EnsureDispatch("Outlook.Application") 

It returns this errors :

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) 

The message means "Matrix index out of bounds". The strangiest thing is that after I called EnsureDispatch, win32com.client.Dispatch doesn't works anymore. I have to uninstall pywin32 and reinstall it...

I'm running with Python2.7.3 32-bit with Outlook 2003 32-bit

Thanks


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