convert between bases python
chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" #these are the digits you will use for conversion back and forth
charsLen = len(chars)
def numberToStr(num):
s = ""
while num:
s = chars[num % charsLen] + s
num //= charsLen
return(s)
def strToNumber(numStr):
num = 0
for i, c in enumerate(reversed(numStr)):
num += chars.index(c) * (charsLen ** i)
return(num)
# add as many different characters as you want
alpha = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
def convert(num, base=2):
assert base <= len(alpha), f"Unable to convert to base {base}"
converted = ""
while num > 0:
converted += alpha[num % base]
num //= base
if len(converted) == 0:
return "0"
return converted[::-1]
print(convert(15, 8)) # 17
