[issue3207] file.write() after file.readline() in mode "r+"

[Peter]

Peter <poslano at gmail.com> added the comment:

Amaury Forgeot d'Arc, your example really raise IOError 0
Thing is that you had 1 string in the file
Here is it:
>>> open("delete.me", "w").write("first\nsecond\nthird")
>>> fp = open("delete.me", "r+t")
>>> fp.readline()
'first\n'
>>> fp.write("Newbie")
>>> fp.close()
>>> open("delete.me", "r").read()
'first\nsecond\nthird'

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<http://bugs.python.org/issue3207>
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