Custom encoder that encodes any binary data to given alphabet.
Python 3.8 and above. No additional dependencies.
pip install basen-encoder
Encode a number to the string and back
import string
import basen
ALPHABET = string.ascii_letters + string.digits
for i in range(1000, 2000, 9):
encoded = basen.int2base(i, ALPHABET)
decoded = basen.base2int(encoded, ALPHABET)
print(i, encoded, decoded)1000 qi 1000
1009 qr 1009
1018 qA 1018
1027 qJ 1027
...
Even huge numbers can be encoded as well.
import string
import basen
ALPHABET = string.ascii_letters + string.digits
NUM = 10**100
encoded = basen.int2base(i, ALPHABET)
decoded = basen.base2int(encoded, ALPHABET)
print(NUM)
print(encoded)
print(decoded)10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Am851IcwtXApqVErDmkjfH9ikry1v4YsyaP4zUrrmM8H8j83wfxbV02K
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Encode a binary data to printable text like base64 but with an arbitrary alphabet.
import string
import basen
ALPHABET = string.ascii_letters
DATA = "Some binary data..."
encoder = basen.BaseN(string.ascii_letters, 3)
encoded = encoder.encode(DATA)
decoded = encoder.decode(encoded)
print(DATA)
print(encoded)
print(decoded)Some binary data...
aMUkfaVgYAaXhpLbbsxuaUOUCaTprkavVgx==
bytearray(b'Some binary data...')