Library for Working with Iterators
The built-in itertools package (https://docs.python.org/3/library/itertools.html) contains a collection of useful iterators. Let's talk about a few of them: combinations — returns a tuple in sorted …
Using functools.partialmethod to Create Partial Methods
functools.partialmethod This function allows you to create a partial method of a class by pre-fixing some of the method's arguments. This is useful when you …
Using itertools.combinations_with_replacement to generate combinations with repetition
itertools.combinations_with_replacement is a useful function from the itertools module that allows you to create combinations of elements with repetition. This is convenient when you need …
Tenacity is a powerful library for implementing retries.
Tenacity is a library for implementing automatic retries when errors occur. It allows you to easily add retry logic to any function or block of …
Using types.MappingProxyType to create immutable mappings
types.MappingProxyType is a wrapper object that allows you to create an immutable mapping based on an existing dictionary. It provides read-only access to the dictionary's …
How to implement a queue in Python
Queues are a data structure used to store collections of elements in a first-in, first-out (FIFO) order. Just like in a real-life queue — whoever …
What does the takewhile() function from the itertools module do?
The takewhile() function from the itertools module creates an iterator that returns elements from an iterable as long as the specified condition is true (evaluates …
Starmap()
`starmap()` accepts another function and an iterable object as arguments, where the elements of the iterable are tuples. The passed function is applied to each …
Peewee is a lightweight ORM (Object-Relational Mapping) for Python
Peewee is a compact and easy-to-use ORM library for working with databases. It supports SQLite, MySQL, and PostgreSQL, providing a convenient API for working with …
DABL
DABL (Data Analytics in Business Language) is a Python library that simplifies the use of machine learning for data analysis. It provides a simple and …
Using defaultdict to simplify working with dictionaries
When working with dictionaries where you need to initialize default values for new keys, defaultdict from the collections module greatly simplifies this process. Using defaultdict …
Why use namedtuple instead of a regular dictionary?
The main advantage of namedtuple is that it takes up less space (memory) than an equivalent dictionary. Therefore, for large datasets, named tuples are more …
Sorting a list of dictionaries
There are tasks where it is necessary to sort a list of dictionaries in order to obtain a list sorted in a specific order based …
Automatic shutdown of a computer when the battery is low
The script checks the battery level and automatically shuts down the computer if the charge is below the specified threshold. #!/bin/bash # Battery level threshold …
Compress function
The compress function from itertools is used to filter elements from the input sequence based on the corresponding elements in a boolean sequence. The code …