Convert hexadecimal text to bytes.
Python: Use bytes.fromhex for a readable byte representation and hex for the reverse conversion.
data = bytes.fromhex("48 69 21")
print(data.decode("ascii"))
print(data.hex())Expected output EXAMPLE
Hi! 486921
Details
Save as snippet.py and run python3 snippet.py. Uses the Python standard library. Use bytes.fromhex for a readable byte representation and hex for the reverse conversion.
Tested on Ubuntu 24.04.5 LTS · · Python 3.12.3 · python3 3.12.3-0ubuntu2.1
Test inputs, results and environment
The exact published code ran in a dedicated Linux test container with prepared inputs. Unprivileged snippet process, external networking disabled, read-only root filesystem, and a fresh temporary working directory. Fixtures and output records are isolated from the application database. Testing covers this example and its stated checks, not every input, operating system, or runtime version. The Linux container shares its host's kernel; this is not a native Windows test.
- Architecture / host kernel
- x86_64 / 6.18.54.1-microsoft-standard-WSL2
- Snippet identity / locale
- uid=65534, gid=65534 (unprivileged) / C.UTF-8
- Interpreter invocation
python3 -c <published code>- Container image ID
sha256:32dc2d998158b6554c99b73b533f423696a0f3e31e8cbea9db10b5eee9a2fadd- Code SHA-256
dfba3f588b34e1ed0ce78c18dfa4b49ded7be6ff8a4329fb5b4336e8250799d3- Dependencies
- python3 3.12.3-0ubuntu2.1
Test input setup
These are the prepared inputs used by the test harness. See Details above for the prerequisites and how to run this example.
# No input files required.
Observed standard output
Hi! 486921
Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.