File: units.pyw 1 #!/usr/bin/python3 2 3 # The MIT License (MIT) 4 # 5 # Copyright © 2024 pacman64 6 # 7 # Permission is hereby granted, free of charge, to any person obtaining a copy 8 # of this software and associated documentation files (the “Software”), to deal 9 # in the Software without restriction, including without limitation the rights 10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 # copies of the Software, and to permit persons to whom the Software is 12 # furnished to do so, subject to the following conditions: 13 # 14 # The above copyright notice and this permission notice shall be included in 15 # all copies or substantial portions of the Software. 16 # 17 # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 # SOFTWARE. 24 25 26 # units.pyw 27 # 28 # This is a GUI which lets you run python expression to calculate numbers, 29 # which are then used to convert from/to many common measurement units. 30 # 31 # Updates happen automatically, each time the main input changes. 32 33 34 import math 35 from math import \ 36 acos, acosh, asin, asinh, atan, atan2, atanh, ceil, comb, \ 37 copysign, cos, cosh, degrees, dist, e, erf, erfc, exp, expm1, \ 38 fabs, factorial, floor, fmod, frexp, fsum, gamma, gcd, hypot, inf, \ 39 isclose, isfinite, isinf, isnan, isqrt, lcm, ldexp, lgamma, log, \ 40 log10, log1p, log2, modf, nan, nextafter, perm, pi, pow, prod, \ 41 radians, remainder, sin, sinh, sqrt, tan, tanh, tau, trunc, ulp 42 try: 43 from math import cbrt, exp2 44 except: 45 pass 46 47 from random import \ 48 betavariate, choice, choices, expovariate, gammavariate, gauss, \ 49 getrandbits, getstate, lognormvariate, normalvariate, paretovariate, \ 50 randbytes, randint, random, randrange, sample, seed, setstate, \ 51 shuffle, triangular, uniform, vonmisesvariate, weibullvariate 52 53 from statistics import \ 54 bisect_left, bisect_right, fmean, \ 55 geometric_mean, harmonic_mean, mean, median, \ 56 median_grouped, median_high, median_low, mode, multimode, pstdev, \ 57 pvariance, quantiles, stdev, variance 58 try: 59 from statistics import \ 60 correlation, covariance, linear_regression, mul, reduce 61 except: 62 pass 63 64 from tkinter import Tk, Entry, Label, TOP, BOTTOM, LEFT, Event 65 from typing import List, Tuple, Union, Any 66 67 68 def check_shortcuts(event: Any) -> None: 69 char: str = event.char 70 if char == '': 71 return 72 # copy formula and result to clipboard when enter is pressed 73 if ord(char) == 13: 74 copy(output['text']) 75 # quit when esc key is pressed 76 if ord(char) == 27: 77 win.quit() 78 79 80 def update_result(event: Event) -> None: 81 try: 82 expr = input.get() 83 if expr == '': 84 return 85 # square brackets are easier to type and are valid math 86 expr = expr.replace('[', '(').replace(']', ')') 87 output['text'] = convert(eval(expr)) 88 except Exception as e: 89 output['text'] = e 90 91 92 def copy(s: str) -> None: 93 # tkinter's clipboard functionality isn't working 94 from subprocess import run 95 for p in ['xclip -i', 'wclip -i', 'clip.exe', 'pbcopy']: 96 try: 97 run(p, input=s, text=True) 98 # copy successful, so return 99 return 100 except Exception as _: 101 pass 102 103 104 def convert(x: float) -> str: 105 t = [] 106 for e in table: 107 if e is None: 108 t.append('') 109 else: 110 y = e[1] * x + e[2] 111 t.append('{:,} {:<3} = {:,.4f} {}'.format(x, e[0], y, e[3])) 112 return '\n'.join(t) 113 114 115 # unit conversion table 116 table: List[Union[Tuple[str, float, float, str], None]] = [ 117 # from, multiplier, offset, to 118 # none values mark where to put empty lines in the output 119 ('ft', 0.3048, 0, 'm'), 120 ('m', 3.28084, 0, 'ft'), 121 ('in', 2.54, 0, 'cm'), 122 ('cm', 0.393701, 0, 'in'), 123 ('mi', 1.60934, 0, 'km'), 124 ('km', 0.621371, 0, 'mi'), 125 ('yd', 0.9144, 0, 'm'), 126 ('m', 1.09361, 0, 'yd'), 127 None, 128 ('f', 5/9, -32*5/9, 'c'), 129 ('c', 9/5, 32, 'f'), 130 None, 131 ('lb', 0.453592, 0, 'kg'), 132 ('kg', 2.20462, 0, 'lb'), 133 ('oz', 28.3495, 0, 'g'), 134 ('g', 0.035274, 0, 'oz'), 135 None, 136 ('gal', 3.78541, 0, 'l'), 137 ('l', 0.264172, 0, 'gal'), 138 None, 139 ('in2', 6.4516, 0, 'cm2'), 140 ('cm2', 0.15500031, 0, 'in2'), 141 ('ft2', 0.092903, 0, 'm2'), 142 ('m2', 10.7639, 0, 'ft2'), 143 ('mi2', 2.58999, 0, 'km2'), 144 ('km2', 0.386102, 0, 'mi2'), 145 ('ac', 0.00404686, 0, 'km2'), 146 ('km2', 247.105, 0, 'ac'), 147 ] 148 149 win = Tk() 150 win.title('Unit-conversion Calculator') 151 input = Entry(font=20, width=35) 152 input.pack(side=TOP, padx=5) 153 input.bind('<KeyPress>', check_shortcuts) 154 input.bind('<KeyRelease>', update_result) 155 input.focus() 156 157 font = ('Lucida Console', 12) 158 output = Label(text='esc\tquits\nenter\tcopies to clipboard', font=font) 159 output.config(justify=LEFT) 160 output.pack(side=BOTTOM, padx=10, pady=5) 161 win.mainloop()