hg <[EMAIL PROTECTED]> writes:
> I spent a few hours find this bug:
>
> value == self.Get_Value()
> if value == WHATEVER:
> do this
>
> instead of
> value = self.Get_Value()
> if value == WHATEVER:
> do this
>
> Is there a way to avoid such a bug with some type of construct ?
Use pylint to check your code for common mistakes.
<URL:http://www.logilab.org/projects/pylint>
===== bad_assign.py =====
""" Demonstrate a logical error """
value = None
value == 10
if value == 10:
print "Yep"
else:
print "Nope"
=====
$ python ./bad_assign.py
Nope
$ pylint ./bad_assign.py
************* Module bad_assign
C: 2: Invalid name "value" (should match (([A-Z_][A-Z1-9_]*)|(__.*__))$)
W: 4: Statement seems to have no effect
[...]
--
\ "When I was crossing the border into Canada, they asked if I |
`\ had any firearms with me. I said, 'Well, what do you need?'" |
_o__) -- Steven Wright |
Ben Finney
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