A Python module for extracting values out of a string using a simple pattern instead of a regular expression by defining groups of named characters using a pair of opening and closing delimiters.
Examples:
from extract_values import extract_values
>>> extract_values('/2012/08/12/test.html', '/{year}/{month}/{day}/{title}.html')
{ 'year': '2012', 'month': '08', 'day': '12', 'title': 'test' }
>>> extract_values('John Doe <[email protected]> (http://example.com)', '{name} <{email}> ({url})')
{'name': 'John Doe', 'email': '[email protected]', 'url': 'http://example.com' }
>>> extract_values('from 4th October to 10th October', 'from `from` to `to`', strip_values=True, whitespace=1, delimiters=['`', '`'])
{'from': '4th October', 'to': '10th October' }
>>> extract_values('Convert 1500 Grams to Kilograms', 'convert {quantity} {from_unit} to {to_unit}', lowercase=True)
{'quantity': '1500', 'from_unit': 'grams', 'to_unit': 'kilograms' }]
>>> extract_values('The time is 4:35pm here at Lima, Peru', 'The time is :time here at :city', delimiters=[':', ''])
{'time': '4:35pm', 'city': 'Lima, Peru'}Optional parameters:
- lowercase - When True is passed the string is lowercased first
- whitespace - Minimal number of extra whitespace to remove
- strip_values - When True calls strip() for each value removing whitespace
- delimiters - A sequence with only the opening and closing delimiters
In order to install this package from PyPi you can run any of these commands:
easy_install extract-values
or
pip install extract-values
This library can also be installed directly from Github with the following command:
pip install git+ssh://[email protected]/gnrfan/extract-values.git
This little project was inspired by a similar Node.js module created by sri-lankan developer Lakshan Perera available here.
(c) 2012 - Antonio Ognio [email protected] - Distributed under the BSD license - Made in Peru.