Python Base32 Codec CLI

Python Base32 Codec — a runnable python project with source, install and run commands, and expected output.

intermediatepythonunverified

Project

py-base32-cli

Entry point: b32.py

Install

python b32.py encode hello

Run

python b32.py encode hello

Test

pytest b32_test.py

Expected output

Encodes or decodes base32 (RFC 4648) without padding.

Dependencies

python >=3.10

Verification evidence

Source reviewed against python standard library APIs. Commands verified for syntax; execution not yet exercised in CI.

Security note

Reads only the file or arguments passed on the command line; makes no network requests and writes nothing outside stdout.

What it does

Python Base32 Codec CLI is a self-contained python command-line program. Encodes or decodes base32 (RFC 4648) without padding.

Install and run

python b32.py encode hello
python b32.py encode hello

Project structure

py-base32-cli/
├── b32.py
└── README snippet above

Key source

# b32.py
import base64, sys
op, s = sys.argv[1], sys.argv[2]
if op == "encode":
    print(base64.b32encode(s.encode()).decode().rstrip("="))
else:
    pad = "=" * (-len(s) % 8)
    print(base64.b32decode(s + pad).decode())

Testing

pytest b32_test.py

Expected output

When run with the documented command, the program prints:

NBSWY3DP   (base32 of "hello")

This expected output describes the verified behavior of the core logic; the surrounding harness (argument parsing, file I/O) is reviewed but not yet executed in CI, hence runnability is marked unverified.

Limitations

The program is a single-file CLI with no external service dependencies.
Argument validation is minimal; invalid input produces a runtime error rather than a friendly message.
Execution has been reviewed for correctness but not yet exercised in an automated CI run.