py-linq
LINQ (Language Integrated Query) is a popular querying language available in .NET. This library ports the language so
that developers can query collections of objects using the same syntax. This library would be useful for Python developers
with experience using the expressiveness and power of LINQ.
Install
Available as a package from PyPI.
pip install py-linq
Usage
To access the LINQ functions an iterable needs to be wrapped by the Enumerable
from py_linq import Enumerable
my_collection = Enumerable([1,2,3])
Documentation
Please visit the project site for better documentation
Contributing
Contributions are welcomed. This project uses pipenv to handle the few library dependencies. Pre-commit is also used so that formatting and linting checks are performed on commit.
- Clone the repository using
git clone https://github.com/viralogic/py-enumerable.git
- Install pipenv globally
pip install pipenv
- CD into the root of your cloned repository directory and
pipenv install --dev
to install all packages from the repository Pipfile.
- Install
pre-commit
by typing pipenv run pre-commit install
- You should now be ready to start coding!
Authors
Bruce Fenske
Contributors
- Oleg Shilo
- Sebastien Celles
- Daniel Goltz
History
Date |
Version |
Description |
21-Apr-2020 |
1.2.2 |
- Issue #38 - Fixed issue where to_list calls were taking a very long time. Added some regression testing for this issue
- General performance improvements across code-base where identified
|
21-Jan-2020 |
1.2.1 |
- Issue #36 - Fixed iterating over files
|
24-Nov-2019 |
1.2.0 |
- Memory consumption improvements by removal of data caching when collection is iterated over
- Issue #22 - Unexpected behaviour when using iterator as input data
- Issue #34 - Data loss when using any function
- Issue #35 - Unexpected result when using first function
-
|
7-Oct-2019 |
1.1.0 |
- Issue #23 - Any accepts a None predicate
- Issue #24 - Performance improvement where any returns on first matching element
- Issue #25 - Use of any to check for elements in an Enumerable
- Issue #26 - Performance improvement where element_at only iterates until the n-th element
- Issue #29 - Performance improvement where distinct method is no longer immediately executing.
- Issue #30 - Performance improvement where all function is no longer iterating through collection more than once
- Issue #31 - Performance improvement where reverse function is no longer immediately executing
- Issue #32 - Count function now accepts a lambda predicate to filter collection
|
16-Jul-2019 |
1.0.1 |
- Issue #21 - Support lambda predicates in first, first_or_default, last, and last_or_default methods
|
07-Mar-2019 |
1.0 |
- Issue #17 - Added additional LINQ methods to complete the
Enumerable API as per MSDN
|
06-Jan-2019 |
0.7 |
- Issue #19 - Distinct bug fix
|
06-Dec-2018 |
0.6 |
- Issue #13 - Empty list as default parameter
- Issue #14 - except_ method bug fix
|
19-Jul-2017 |
0.5 |
- last and last_or_default method bug fixes
- then_by and then_by_descending implementation
|
30-Jan-2017 |
0.4 |
|
15-Jan-2015 |
0.3 |
- Changed README.rst
- Performance improvements
|
12-Jan-2015 |
0.2 |
|
07-Jan-2015 |
0.1 |
|