:mod:!tabnanny --- Detection of ambiguous indentation

.. module:: tabnanny :synopsis: Tool for detecting white space related problems in Python source files in a directory tree.

Source code: :source:Lib/tabnanny.py

---

For the time being this module is intended to be called as a script. However it is possible to import it into an IDE and use the function :func:check described below.

.. note::

The API provided by this module is likely to change in future releases; such changes may not be backward compatible.

.. function:: check(file_or_dir)

If file_or_dir is a directory and not a symbolic link, then recursively descend the directory tree named by file_or_dir, checking all :file:.py files along the way. If file_or_dir is an ordinary Python source file, it is checked for whitespace related problems. The diagnostic messages are written to standard output using the :func:print function.

.. data:: verbose

Flag indicating whether to print verbose messages. This is incremented by the -v option if called as a script.

.. data:: filename_only

Flag indicating whether to print only the filenames of files containing whitespace related problems. This is set to true by the -q option if called as a script.

.. exception:: NannyNag

Raised by :func:process_tokens if detecting an ambiguous indent. Captured and handled in :func:check.

.. function:: process_tokens(tokens)

This function is used by :func:check to process tokens generated by the :mod:tokenize module.

.. XXX document errprint, format_witnesses, Whitespace, check_equal, indents, reset_globals

.. seealso::

Module :mod:tokenize Lexical scanner for Python source code.