Convert numbers between bases.
Project description
Convert any rational number, from any (positive integer) base, to any (positive integer) base. Output numbers as tuple or string.
Any rational number
Arbitrary precision
Fractions
Recurring/repeating fractional digits.
Input numbers as tuple or string or number.
Output numbers as tuple or string.
MIT License (MIT) Copyright (c) 2024 BreadMakesYouFull MIT License (MIT) Copyright (c) 2016 squdle
Requires
Python 3
Install / Uninstall
Install:
pip install baseconvert
Optionally install GUI frontend and launch:
# Install with pyside6 pip install baseconvert[gui] # Run GUI frontend baseconvert
Uninstall:
pip uninstall baseconvert
Quickstart
# base(number, input_base, output_base) >>> base((15, 15, 0, ".", 8), 16, 10) (4, 0, 8, 0, '.', 5) >>> base("FF0.8", 16, 10, string=True) '4080.5' >>> base("4080.5", 10, 16, string=True) 'FF0.8'
Or from command line
$ echo 4080.5 | python -m baseconvert -i 10 -o 16 FF0.8 $ python -m baseconvert -n 4080.5 -i 10 -o 16 FF0.8
Tuple representation
Numbers are represented as a sequence of digits. Each digit is a base-10 integer value. The radix point, which separates the integer and fractional parts, is denoted by a string period.
(int, int, int, ... , '.', ... , int, int, int) ( integer part , '.', fractional part )
String representation
String digits (after z the values are in ascending Unicode):
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz | Value | Representation | |---------|----------------| | 0 - 9 | 0 - 9 | | 10 - 53 | A - Z | | 36 - 61 | a - z | | 62 + | unicode 123 + | For bases higher than 61 it's recommended to use tuple representation.
Examples
# base(number, input_base, output_base) >>> n = (15,15,".",0,8) >>> base(n, 16, 10) (2, 5, 5, '.', 0, 3, 1, 2, 5) >>> base(n, 16, 10, string=True) '255.03125' >>> base("FF.08", 16, 10) == base((15,15,".",0,8), 16, 10) True # A callable BaseConverter object can also be created. # This is useful for when several numbers need to be converted. >>> b = BaseConverter(input_base=16, output_base=8) >>> b("FF") (3, 7, 7) >>> b((15, 15)) (3, 7, 7) >>> b("FF") == b((15,15)) True >>> base(0.1, 3, 10, string=True) '0.[3]'
Recurring digits
Recurring digits at the end of a fractional part will be enclosed by “[” and “]” in both string and tuple representation. This behavior can be turned off by setting the recurring argument of base or BaseConverter object to False.
>>> base("0.1", 3, 10, string=True) '0.[3]' >>> base("0.1", 3, 10, string=True, recurring=False) '0.3333333333'
Max fractional depth
Integer parts are always of arbitrary size. Fractional depth (number of digits) can must be specified by setting the max_depth argument of base or a BaseConverter object (default 10).
>>> base("0.2", 10, 8) (0, '.', 1, 4, 6, 3, 1, 4, 6, 3, 1, 4) >>> base("0.2", 10, 8, max_depth=1) (0, '.', 1)
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