How-to articles, tricks, and solutions about PYTHON

There are several common formats for Python docstrings, including:

This error typically occurs when there is a circular import between two or more modules.

__init__ is a special method in Python classes, also known as a constructor.

In Python, __all__ is a list of strings that defines the names that should be imported when from <module> import * is used.

In Python, the "->" symbol is used to indicate the return type of a function.

The "SyntaxError: Missing parentheses in call to 'print'" error message is raised when you are using Python 3 and you have forgotten to include the parentheses when calling the print() function.

In Python, the double star (**) is used to denote an "unpacking" operator, which allows you to unpack a dictionary or other iterable data type into keyword arguments in a function call.

In a Python format string, the %s placeholder represents a string.

functools.wraps is a decorator that can be used to modify a function or method by updating its metadata.

The special __name__ variable in Python is a string that contains the name of the current module. If the module is the main program, __name__ will be set to the string "__main__".

The 'b' character in front of a string literal indicates that the string is a bytes literal.

In Python, the "at" (@) symbol is used to decorate a function.

Python, the yield keyword is used in the body of a function like a return statement, but instead of returning a value and terminating the function, it yields a value and suspends the function's execution.

In Python, the "r" prefix before a string denotes that it is a raw string literal.

There are many Integrated Development Environments (IDEs) that you can use for writing, testing, and debugging Python code.

The __future__ module in Python allows you to enable new language features which are not compatible with the current version of Python.

__init__.py is a special Python file that is used to indicate that the directory it is present in is a Python package.

__pycache__ is a directory that is created by the Python interpreter when it imports a module.

A "pythonic" way to implement multiple constructors in Python is to use the @classmethod decorator.

The os.path module in Python provides a cross-platform way to get the home directory.

A mixin in Python is a class that is used to add specific functionality to other classes without inheriting from them.

setup.py is a Python script used to build and install Python packages.

There is no one "best" project structure for a Python application, as it often depends on the specific requirements and goals of the project.

__str__ and __repr__ are two special methods in Python classes.

In Python 2, dict.items() returns a list of the dictionary's key-value pairs, whereas dict.iteritems() returns an iterator over the dictionary's key-value pairs.