pydiatra 0.2

yet another static checker for Python code

Overview

pydiatra is yet another static checker for Python code.

This is (almost) the same checker that used to be a part of lintian4python.

Implemented checks

• embedded code copies

• except shadowing builtins (e.g. except IOError, OSError:, which overwrites OSError)

• bare except (i.e. except:)

• hardcoded errno values (e.g. exc.errno == 2 instead of exc.errno == errno.ENOENT)

• inconsistent use of tabs and spaces in indentation

• mkstemp() file descriptor leaks (e.g. path = tempfile.mkstemp()[1])

• obsolete PIL imports (e.g. import Image instead of from PIL import Image)

• regular expression syntax errors

• dubious constructs in regular expressions:

  • duplicate range (e.g. re.compile("[aa]"))

  • overlapping ranges (e.g. re.compile("[a-zA-z]"))

• string exceptions (e.g. raise "eggs" or except "ham":)

• string formatting errors

• Python syntax errors

• Python syntax warnings

  • assertions that are always true

  • syntactic constructs that are no longer supported in Python 3