Bash-style brace expansion for Python

|build-status-img| |PyPI|

Implements Brace Expansion as described in
bash(1) <http://man7.org/linux/man-pages/man1/bash.1.html#EXPANSION>__,
with the following limitations:

A pattern containing unbalanced braces will raise an
UnbalancedBracesError exception. In bash, unbalanced braces will
either be partly expanded or ignored.
A mixed-case character range like '{Z..a}' or '{a..Z}' will
not include the characters :literal:`[]^_`` between Z and a.

braceexpand is tested with Python 2.7, and 3.6+

Installation

Install the braceexpand package from pypi:

::

$ pip install braceexpand

The braceexpand function returns an iterator over the expansions
generated from a pattern.

.. code:: python

from braceexpand import braceexpand

list(braceexpand('item{1..3}'))
['item1', 'item2', 'item3']

list(braceexpand('{a..c}'))
['a', 'b', 'c']

list(braceexpand('index.html{,.backup}'))
['index.html', 'index.html.backup']

list(braceexpand('python{2.{5..7},3.{2,3}}'))
['python2.5', 'python2.6', 'python2.7', 'python3.2', 'python3.3']

list(braceexpand('{07..10}'))
['07', '08', '09', '10']

list(braceexpand('{a..g..2}'))
['a', 'c', 'e', 'g']

list(braceexpand('{4..1}'))
['4', '3', '2', '1']

list(braceexpand('{2..-1}'))
['2', '1', '0', '-1']

list(braceexpand('{1{2,3}'))
Traceback (most recent call last):
...
UnbalancedBracesError: Unbalanced braces: '{1{2,3}'

list(braceexpand(r'{1{2,3}'))
['1{2', '3']

list(braceexpand(r'{1,2}', escape=False))
['\1', '\2']

braceexpand is licensed under the MIT License. See the included file
LICENSE for details.