[Python-bugs-list] [ python-Feature Requests-748201 ] time.strptime() should display format and date on error

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Feature Requests item #748201, was opened at 2003-06-03 07:14
Message generated for change (Comment added) made by bcannon
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Thomas Guettler (guettli)
Assigned to: Brett Cannon (bcannon)
Summary: time.strptime() should display format and date on error

Initial Comment:
Hi!

It would be very nice if the ValueError of
time.strptime() would
display the format and the date if there is a mismatch.

Up to now (python 2.2.2) the Error looks like this:
 ValueError: format mismatch
It would be nice if it would look like this:
 format mismatch: str=2002.12.24 format=%Y-%m-%d

 thomas

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>Comment By: Brett Cannon (bcannon)
Date: 2003-07-09 10:13

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I will see what I can do.  I am not going to touch this, though, 
until after 2.3 is out since I don't want to risk breaking any code.  
Besides, strptime is going to get a slight overhaul after 2.3 comes 
out to clean it up and make it leaner.

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Comment By: Walter Dörwald (doerwalter)
Date: 2003-06-30 04:08

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Maybe time.strptime() should use a subclass of ValueError,
with proper attributes.

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Comment By: Raymond Hettinger (rhettinger)
Date: 2003-06-27 23:17

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Helpful, informative error messages are certainly a step in 
the right direction.  Referrring to Brett for implementation.

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