<commit_before>Easy two-way conversion between Python dictionaries and fixed-width files.
The FixedWidth class has been used in production without modification for 
over two years.

Requires a 'config' dictonary. See unit tests for full example.

Small example::

    SAMPLE_CONFIG = {

        'first_name': {
            'required': True,
            'type': 'string',<commit_msg>minor documentation update<commit_after>Easy two-way conversion between Python dictionaries and fixed-width files.
The FixedWidth class has been used in production without modification for 
several years.

This module has also proven useful for "debugging" a fixed-width spec --
an invalid configuration reports an error that may not be obvious from
reading the spec document.

Requires a 'config' dictonary. See unit tests for full example.

Small example::

    SAMPLE_CONFIG = {

        'first_name': {
            'required': True,
            'type': 'string',
{'fraction_non_alphanumeric': 0.06751054852320675, 'fraction_numerical': 0.0, 'mean_word_length': 3.4139534883720932, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6829306', 'n_tokens_mistral': 250, 'n_tokens_neox': 233, 'n_words': 109}