Must import sre_constants to catch re.compile errors. #39129

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1. jemfinch commented on Aug 26, 2003

   

   jemfinchmannequin

   on Aug 26, 2003

   MannequinAuthor

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   It's a bit frustrating not to be able to catch
   exceptions raised by re.compile with just the re
   module. The fact that sre_constants.error is
   raised is a bit too much implementation showing
   through, IMO.

   Anyway, I suggest a exception be added to the re
   module that subclasses sre_constants.error for
   backwards compatibility. So users can simply
   import re and catch re.error instead of having to
   import re and sre_constants and catch
   sre_constants.error.
2. jemfinch

   closed this as completedon Aug 26, 2003
3. jemfinch

   assigned

   effbot

   on Aug 26, 2003
4. jemfinch

   added

   topic-regex

   on Aug 26, 2003
5. jemfinch

   closed this as completedon Aug 26, 2003
6. jemfinch

   assigned

   effbot

   on Aug 26, 2003
7. jemfinch

   added

   topic-regex

   on Aug 26, 2003
8. effbot commented on Aug 26, 2003

   

   effbotmannequin

   on Aug 26, 2003

   Mannequin

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   user_id=38376

   afaik, the following has worked since 1.6, and still works
   in 2.3:

   >>> import re
   >>> try:
   ...     re.compile("[]*")
   ... except re.error:
   ...     print "oops"
   ...
   oops

   what Python version are you using?
9. jemfinch commented on Aug 26, 2003

   

   jemfinchmannequin

   on Aug 26, 2003

   MannequinAuthor

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   Oops, my fault.
10. ezio-melotti

    transferred this issue fromon Apr 9, 2022