Re: Problem registering Python COM object (suddenly) Hi,
I've been volunteering for the Research Dept. of Selby Botanical Gardens here in Sarasota, FL. In support of my project I wrote a Python COM server to extend Python's regular expression capabilities to VB. (I'm aware of VB regular expression support, which doesn't include look-behinds.) The computer I use at the Gardens has XP SP2 and Access 2003. Two or three weeks ago I installed Pywin32 (Active State) at the Gardens by downloading the latest version of 2.5 (build 211?). At home I run Active State 2.5 211.1. I believe the software is up-to-date. When I originally installed my Python COM object, the Access application ran flawlessly. However, after a week's absence, I can't even seem to register the COM object (which has changed). The symptoms occur during a query that computes a value using the COM object. I get the Access message "Error ??? the object doesn't support that method". If I stop the query with a break point in VB, I can see that my object exists (probably from the DIM statement). However, it doesn't seem to be associated with the Python COM object. Everything works swimmingly at my development computer. Between last week's visit and today's visit, things won't work at the Gardens. The computer there is very low on C: disk space. Could this have an effect on win32com's registration of the COM object? Is there a method for positive validation that the object is registered? The Tools.References menu item doesn't help, and at my development computer it doesn't show up as an ActiveX component, although it is obviously registered and accessible to VB. Also Application.COMAddins.Item() doesn't show it on either machine. This is puzzling. I've run out of leads. Any clues, anyone? The code follows, although I don't believe it is the code, but rather some external condition of which I'm unaware. Here is the Python code: class reObj: import pythoncom import re import string _public_methods_ = ["allMatches","substitute","replaceAll","occurs","listem"] _reg_progid_ = "Python.reObj" _reg_clsid_ = pythoncom.CreateGuid() def __init__ (self): pass def allMatches(self, pattern, str): import re import string result='' matchGroup=re.search(pattern,str) while matchGroup<>None: (start,end)=matchGroup.span() result = result + ", " + str[start:end] str=str.replace(str[start:end],'',1) matchGroup=re.search(pattern,str) return result[2:] def substitute(self,str,pattern,replacement,count=1): str=str.replace(pattern,replacement,count) return str def replaceAll(self,str,pattern,replacement): str=str.replace(pattern,replacement) return str def occurs(self,str,pattern): result='' matchGroup=re.search(pattern,str) count=0 while matchGroup<>None: count=count+1 (start,end)=matchGroup.span() str=str.replace(str[start:end],'',1) matchGroup=re.search(pattern,str) return (count) if __name__ == '__main__': import win32com.server.register win32com.server.register.UseCommandLine(reObj) And here is the VB code that calls it: Public Function fLatitude(str As String) As String Dim degreesPattern As String Dim minutesPattern As String Dim secondsPattern As String Dim degrees As String Dim minutes As String Dim seconds As String Dim s As String Dim ns As String Dim r As Object Set r = CreateObject("Python.reObj") degreesPattern = "(\d+(\.\d+)?...@])" minutesPattern = "(\s?\d+(\.\d+)?[!])" secondsPattern = "(\s?\d+(\.\d+)?[=])" latitudePattern = "(\d+(\.\d+)?...@!=]\s?)+[NS](?=[\s\.,;]|$)" agn = fAgnosticLatLong(str) s = r.allMatches(latitudePattern, agn) If Len(s) = 0 Then fLatitude = "" Exit Function End If ns = Right(s, 1) degrees = r.allMatches(degreesPattern, s) minutes = r.allMatches(minutesPattern, s) seconds = r.allMatches(secondsPattern, s) degrees = r.replaceAll(degrees, "@", "*") minutes = r.replaceAll(minutes, "!", "'") seconds = r.replaceAll(seconds, "=", """") fLatitude = degrees & minutes & seconds & ns Set r = Nothing End Function Works perfectly at home, but not at all (now) at the pro-bono client. If you've read this far, my deepest thanks, Cheers, Gary ___________________________________ "Even for practical purposes theory generally turns out the most important thing in the end." Oliver Wendell Holmes.
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