b62

Because the world desperately needed another Base62 library.

What 🤔

Converts integers to strings and back. Revolutionary stuff.

• Uses Rust 🦀 (because Python is apparently too slow for basic arithmetic)
• Zero dependencies (we're very proud of this achievement)
• Type hints (for people who forgot what integers look like)

Install

pip install b62

Shocking, we know.

Usage

import b62

# Turn number into string
encoded = b62.encode(123456789)  # "8M0kX"

# Turn string back into number  
decoded = b62.decode("8M0kX")    # 123456789

# It throws errors when you give it garbage
try:
    b62.decode("not_base62!")
except ValueError:
    print("Surprise! Invalid input breaks things.")

Batch Operations

For when you have many numbers to convert:

# Encode multiple integers (in parallel, because waiting is hard)
encoded = b62.encode_batch([1, 62, 123456789])  # ['1', '10', '8M0kX']

# Decode multiple strings (also in parallel)
decoded = b62.decode_batch(['1', '10', '8M0kX'])  # [1, 62, 123456789]

Performance ⚡

It's fast. Here are some numbers to make you feel better about your life choices:

• Decode: ~52ns per operation (congratulations, you saved nanoseconds)
• Encode: ~90ns per operation (your URL shortener will thank you)
• Batch operations: Uses all your CPU cores (because why not)

Benchmarks run on a machine that probably costs more than your car. 💸

API

encode(num: int) -> str

Converts integer to Base62 string. Rocket science.

decode(string: str) -> int

Converts Base62 string back to integer. PhD not required.

encode_batch(nums: list[int]) -> list[str]

Like encode() but for people with lists.

decode_batch(strings: list[str]) -> list[int]

Like decode() but for people with more lists.

Character Set

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

Yes, we counted. There are 62 of them.

Use Cases

• URL shortening (because long URLs hurt feelings)
• Database ID obfuscation (security through obscurity, naturally)
• Compact serialization (for when JSON is "too verbose")
• Impressing coworkers with Rust integration

Development

make test    # Run tests (they probably pass)
make ci      # Pretend you care about CI
make build   # Build the thing

License

MIT - Because we're not monsters. 😇

Now go forth and encode responsibly.