linq-tool 0.1.14

A LINQ-like library for Python inspired by C# LINQ using itertools and more-itertools internally.

Linq Tool

Linq is a Python package that provides LINQ-like functionality for performing common operations on iterables. Inspired by LINQ from C#, this package allows you to easily manipulate collections in a functional style.

Features

• Select: Project each element of a sequence into a new form.
• Where: Filter elements based on a predicate.
• GroupBy: Group elements by a key selector function.
• OrderBy: Sort elements based on a key.
• Distinct: Remove duplicate elements.
• And many more!

Installation

You can install Linq via pip:

pip install linq-tool

Usage Examples

You might create a Linq instance and iterate throughout the object

linq = Linq([1, 2, 3])
for item in linq:
    print(item) # 1

The object is an iterable, if you need to use it as list, you need to invoke the to_list method

Select

from linq_tool import Linq

linq = Linq([1, 2, 3])
result = linq.select(lambda x: x * 2).to_list()
print(result)  # Output: [2, 4, 6]

Where

linq = Linq([1, 2, 3, 4])
result = linq.where(lambda x: x % 2 == 0).to_list()
print(result)  # Output: [2, 4]

GroupBy

linq = Linq(['apple', 'banana', 'apricot', 'blueberry'])
result = linq.group_by(lambda x: x[0]).to_list()
print(result)  # Output: [('a', ['apple', 'apricot']), ('b', ['banana', 'blueberry'])]

OrderBy

linq = Linq([{'name': 'apple', 'price': 5}, {'name': 'banana', 'price': 3}])
result = linq.order_by(lambda x: x['price']).to_list()
print(result)  # Output: [{'name': 'banana', 'price': 3}, {'name': 'apple', 'price': 5}]

Distinct

linq = Linq([1, 2, 2, 3, 4, 4])
result = linq.distinct().to_list()
print(result)  # Output: [1, 2, 3, 4]

Take

linq = Linq([1, 2, 2, 3, 4, 4])
result = linq.distinct().to_list()
print(result)  # Output: [1, 2, 3, 4]

Skip

linq = Linq([1, 2, 3, 4, 5])
result = linq.skip(2).to_list()
print(result)  # Output: [3, 4, 5]

FirstOrDefault

linq = Linq([1, 2, 3])
result = linq.first_or_default()
print(result)  # Output: 1

empty_linq = Linq([])
result = empty_linq.first_or_default(42)
print(result)  # Output: 42

LastOrDefault

linq = Linq([1, 2, 3])
result = linq.last_or_default()
print(result)  # Output: 3

empty_linq = Linq([])
result = empty_linq.last_or_default(42)
print(result)  # Output: 42

Any

linq = Linq([1, 2, 3])
result = linq.any(lambda x: x > 2)
print(result)  # Output: True

result = linq.any(lambda x: x > 3)
print(result)  # Output: False

All

linq = Linq([1, 2, 3])
result = linq.all(lambda x: x > 0)
print(result)  # Output: True

result = linq.all(lambda x: x > 1)
print(result)  # Output: False

Count

linq = Linq([1, 2, 3, 4])
result = linq.count()
print(result)  # Output: 4

TakeWhile

linq = Linq([1, 2, 3, 4, 5])
result = linq.take_while(lambda x: x < 4).to_list()
print(result)  # Output: [1, 2, 3]

SkipWhile

linq = Linq([1, 2, 3, 4, 5])
result = linq.skip_while(lambda x: x < 4).to_list()
print(result)  # Output: [4, 5]

SkipWhile

linq = Linq([1, 2, 3, 4, 5])
result = linq.skip_while(lambda x: x < 4).to_list()
print(result)  # Output: [4, 5]

ZipWith

linq = Linq([1, 2, 3])
result = linq.zip_with(['a', 'b', 'c']).to_list()
print(result)  # Output: [(1, 'a'), (2, 'b'), (3, 'c')]

ZipLongest

linq = Linq([1, 2, 3])
result = linq.zip_longest_with(['a', 'b'], fillvalue='x').to_list()
print(result)  # Output: [(1, 'a'), (2, 'b'), (3, 'x')]

Batch

linq = Linq([1, 2, 3, 4, 5, 6])
result = linq.batch(2).to_list()
print(result) # [(1, 2), (3, 4), (5, 6)]

License

This project is licensed under the MIT License - see the LICENSE file for details.