def uselessHash(filename):
fp= open(filename)
hash= 0
for line in fp:
hash ^= hash(line.strip())
fp.close() # do I need this or is fp closed by ref count?
return hash
Consider the function above. Do I need the fp.close(), or will the
file be closed automatically when fp goes out of scope and its
reference count drops to zero?
If so, there's really no point in calling .close() in situations like
this where the function completes in a relatively short time,, and if
not, I should probably be using try-finally. That's my thinking... or
the thinking of the coworker who was arguing with me.
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