I just bumped into a bug, reusing the same loop variable in two nested for
loops. Here's an example:
def f(x):
for i in range(x):
for i in [1, 2, 3]:
print i
Neither pylint nor flake8 warned about this problematic usage. Had i or x
shadowed a global of the same name, pylint would have complained, e.g.:
x = 7
def f(x):
for i in range(x):
for i in [1, 2, 3]:
x = i
print i, x
Using the same variable in nested loops within the same function seems at
least as serious as a shadowed global (or builtin) name.
Skip
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