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yet another static checker for Python code

Project description

Overview

pydiatra is yet another static checker for Python code.

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

  • misplaced flags arguments in re.split(), re.sub(), re.subn()

  • dubious or deprecated constructs in regular expressions:

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

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

    • bad escape sequences (e.g. re.compile(r"\eggs"))

    • misplaced inline flags (e.g. re.compile("eggs(?i)"); Python 3.6+ only)

    • combining incompatible flags

    • redundant flags

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

  • string formatting errors

  • comparisons with sys.version or sys.hexversion

  • Python syntax errors

  • Python syntax warnings

    • assertions that are always true

    • syntactic constructs that are no longer supported in Python 3

    • ill-formed assignments to global variables

    • use of async and await as names

    • invalid escape sequences in strings (Python 3.6+ only)

See the manual page for details.

Prerequisites

  • Python 2.6+ or 3.2+

  • argparse (needed only for Python 2.6)

  • futures (needed only for Python 2.X)

Project details


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pydiatra-0.12.6.1.tar.gz (45.8 kB view hashes)

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