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Collection of generic-purpose and stand-alone functions

Project description

Collection of generic-purpose and stand-alone functions

python pypi license build & test codecov pylint black

This package provides a collection of generic-purpose and stand-alone functions that are used in multiple places of Lyncs.

Installation

The package can be installed via pip:

pip install [--user] lyncs_utils

Documentation

Here the list of functions implemented with a short description. Use help(lyncs_utils) for more details.

Class Utils

Functions and decorator for classes. See lyncs_utils.class_utils.

  • @add_to: Decorator for adding a function to a class
  • @add_kwargs_of(fnc): Decorator for adding kwargs of a function to another
  • @compute_property: Decorator for computing a property once and cache the result
  • @static_property: Decorator for a static property (like staticmethod)
  • @class_property: Decorator for a class property (like classmethod)
  • call_method(obj, fnc, *args, **kwargs): Calls a method of the obj.
  • default_repr_pretty: Default method to use for repr_pretty

Extensions

Extensions of Python standard functions. See lyncs_utils.extensions.

  • count: See itertools.count. Adds call method
  • redirect_stdout: See contextlib.redirect_stdout. Now, it redirects stdout also from C
  • FreezableDict: Extension of dict. A dictionary that can be frozen at any moment.
  • cache: Enables functools.cache for all versions of Python

Factors

Factorization utils. See lyncs_utils.factors.

  • prod(arr): Enables math.prod for all versions of Python
  • factors(n): Returns the list of factors of n
  • prime_factors(n): Returns the list of prime factors of n

Functools

Tools for functions. See lyncs_utils.functools.

  • is_keyword(key): Whether key can be used as a function keyword
  • get_varnames(fnc): Returns the list of varnames of the function
  • has_args(fnc): Whether the function uses *args
  • has_kwargs(fnc): Whether the function uses **kwargs
  • apply_annotations(fnc, *args, **kwargs): Applies the annotations of fnc to the respective *args, **kwargs
  • select_kwargs(fnc, *args, **kwargs): Calls fnc passing *args and ONLY the applicable **kwargs

I/O

Tools for I/O. See lyncs_utils.io.

  • @open_file: Decorator that opens the file (if needed) before calling the function
  • read(fname/fp): Reads data from file
  • write(fname/fp): Writes data into the file
  • read_struct(fname/fp, format): Reads a structure from file
  • file_size(fname/fp): Returns the file size
  • to_path(fname/fp): Reaturns a Path object to the file

Logical

Functions returning or manipulating logical values (boolean). See lyncs_utils.logical.

  • single_true(iter): Whether one and only one element of the list is True
  • isiterable(obj): Whether the object is iteragle or not
  • interactive(): Whether Python has been run in interactive mode
  • version(num, pkg): Compares the version number to the one of a package

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