divmod-dev team mailing list archive

[Tristan Seligmann <mithrandi@xxxxxxxxxxxxx>]

You only get the unused-local-variable warning if the try/except is in a
function. However, it looks like pyflakes does not warn about shadowing
builtins, which I thought it did, so my analysis in the description is
probably wrong.

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https://bugs.launchpad.net/bugs/848455

Title:
  Detect misuse of except

Status in Pyflakes:
  New
Status in “pyflakes” package in Debian:
  Confirmed

Bug description:
  It would be nice if pyflakes could detect mistakes like this:

         try:
             oldtime = os.path.getmtime(fname)
         except OSError, IOError:
             oldtime = 0

  In the general case, it's obviously difficult to tell whether this is
  an error or not; but I suspect that handling the exception variable
  name as a binding would give you a "redefinition of Foo" warning in
  most of the cases where a mistake has been made.

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