For D. Murray's suggestion---I think that we programmers have to learn
the idiom. We don't always control open, such as subprocess.Popen().
Thank you. I hope these thoughts help with issue 5513 and the related
questions to follow about complete removal of file in python3.
Opening the file in
Return value of open undocumented?
The return value of open() is a stream, according to
http://docs.python.org/dev/py3k/library/io.html#module-io
Seems like time for a bug report.
--
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'''
A python 3 question.
Presume this code is in file p.py.
The program fails.
$ python3 p.py
...
ValueError: I/O operation on closed file.
Removing the comment character to increase the stream
reference count fixes the program, at the expense of
Consider following snippets:
# must examine code carefully to see that result has a value
if condition:
result = expression1
else:
result = another_expression
return result
# result has a value but difficult to understand how it comes
about
result =
