Rename a file within a directory.

Python: Use Path.rename and inspect the resulting path.

Python snippet.py
from pathlib import Path
old = Path("draft.txt")
new = old.rename("final.txt")
print(new.name, new.is_file(), old.exists())

Expected output EXAMPLE

final.txt True False

Details

Save as snippet.py and run python3 snippet.py. Uses the Python standard library. Use Path.rename and inspect the resulting path.

Keep in mind

Choose a destination that does not already exist; replacement behavior varies by platform.

✓ Verified

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
a6701be800c9cd09ff3b848fb0f4b245b491357db2987c2b481297338c195785
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.

printf 'draft\n' > draft.txt

Observed standard output

final.txt True False

Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.

Additional assertions that passed

Checks recorded by the test harness. Where Python assertions are shown, browser cases use Playwright and simulator cases may inspect pin transitions: result.stdout is captured output, work is the temporary directory, and Path is pathlib.Path. The harness also imports json and csv.

assert Path('final.txt').read_text() == 'draft\n'