base62-py
Custom Base-62 Encoder
This repository contains the version of my encoder/decoder for Base-62 in three languages:
- Golang;
- Python;
- TypeScript.
Motivation
I needed an efficient way to apply a Base-62 encoding/decoding algorithm working the same way in TypeScript/Javascript, Golang and Python environments.
Usage
Both versions use the same following dictionary:
| Value | Character | Value | Character | Value | Character | Value | Character | Value | Character |
|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 |
13 | d |
26 | q |
39 | D |
52 | Q |
| 1 | 1 |
14 | e |
27 | r |
40 | E |
53 | R |
| 2 | 2 |
15 | f |
28 | s |
41 | F |
54 | S |
| 3 | 3 |
16 | g |
29 | t |
42 | G |
55 | T |
| 4 | 4 |
17 | h |
30 | u |
43 | H |
56 | U |
| 5 | 5 |
18 | i |
31 | v |
44 | I |
57 | V |
| 6 | 6 |
19 | j |
32 | w |
45 | J |
58 | W |
| 7 | 7 |
20 | k |
33 | x |
46 | K |
59 | X |
| 8 | 8 |
21 | l |
34 | y |
47 | L |
60 | Y |
| 9 | 9 |
22 | m |
35 | z |
48 | M |
61 | Z |
| 10 | a |
23 | n |
36 | A |
49 | N |
||
| 11 | b |
24 | o |
37 | B |
50 | O |
||
| 12 | c |
25 | p |
38 | C |
51 | P |
In other words, they use the following base: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.
pip install base62-py
from base62 import decode, encode, is_valid_base62
value = 18969
encoded = encode(value)
# 4VX
print(encoded)
decoded = decode(encoded)
assert value == decoded
assert is_valid_base62(encoded)
Tests
$ pip install -e . && python3 -m unittest discover
License
Both versions are available under a MIT license (see LICENSE).
© 2021-2026 Cyril Dever. All rights reserved.
1 maintainer
Metadata
1 maintainer
Release files for base62-py 1.4.2
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