Author Alex.Stapleton
Recipients Alex.Stapleton
Date 2010-04-14.13:01:14
SpamBayes Score 1.23293e-10
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Message-id <1271250076.58.0.0616490142802.issue8397@psf.upfronthosting.co.za>
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Content
Normal files throw exceptions if you mix methods.

>>> f = open("words")
>>> for l in f:
...     break
... 
>>> f.tell()
8192L
>>> f.readline()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: Mixing iteration and read methods would lose data



BZ2Files silently do the wrong thing. (Output is a coincidence. Honest!)

>>> import bz2
>>> f = bz2.BZ2File("words.bz2")
>>> for l in f:
...     break
... 
>>> f.tell()
8192L
>>> f.readline()
'lose\n'


Expected behaviour is for it to throw a ValueError like normal file objects.
History
Date User Action Args
2010-04-14 13:01:17Alex.Stapletonsetrecipients: + Alex.Stapleton
2010-04-14 13:01:16Alex.Stapletonsetmessageid: <1271250076.58.0.0616490142802.issue8397@psf.upfronthosting.co.za>
2010-04-14 13:01:14Alex.Stapletonlinkissue8397 messages
2010-04-14 13:01:14Alex.Stapletoncreate