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Usefulpy

Welcome to the usefulpy wiki!

Filled with simple resources and modules for a cleaner-looking program, Usefulpy is a module filled with many useful functions and modules in various subjects geared to cut down and simplify some little bits of code that can become messy or repetitive.

Download and Import

download and install with with

pip download usefulpython
pip install usefulpython

import with import usefulpy

What functions are in usefulpy?

Some are simple - like input validation and versatile type checking.

So instead of checking, say

float(x) == int(float(x))

You can check it as

is_integer(x)

Which calls

def is_integer(s):
    '''Check if an object is an integer can be turned into an integer without
losing any value'''
    try: return int(float(s)) == float(s)
    except: return False

Other parts of the project are a little more complicated, including

quaternions

>>> from usefulpy.mathematics import quaternions

>>> quaternion(1, 2, 2, 2)
1+2i+2j+2k
>>> _*quaternion(2, 1, 1, 1)
-4+5i+5j+5k
>>> 

Prime sieves

>>> from usefulpy.mathematics import Prime
>>> import timeit
>>> timeit.timeit('Prime(99999989)', number = 1000, globals = globals())
0.34076689999999843
>>> Prime(99999989)
True

Basic algebraic simplifier and derivative finder

>>> from usefulpy.mathematics import cos, x
>>> x+x
<mathfunc x*2 at 0x3a129d0>
>>> x*x
<mathfunc x**2 at 0x3a30100>
>>> x**x
<mathfunc x**x at 0x3a30118>
>>> _.derivative()
<mathfunc x**x+ln(x)*(x**x) at 0x3ca09a0>
>>> cos*2 == cos+cos
True
>>> 

3d projection systems

Essentially, usefulpy is a large library of functions that improve the quality of python programming. One catch, it can't use any sort of third-party libraries... so no numpy, scipy, manim, or any others...