Registry / serialization / parameter-expansion-patched

parameter-expansion-patched

library0.3.1pypypi✓ verified 79d ago

A Python library that implements shell-style parameter expansion (e.g., ${VAR:-default}, ${VAR#prefix}). It is a patched fork of the original parameter-expansion library, maintained for PyPI distribution. Current version 0.3.1, with occasional updates.

serialization

pip install parameter-expansion-patched

github ↗package ↗

INSTALL

IMPORT

SIG · PARAMETER-EXPANSIO

parameter-expansion-patched

serializationpythonv0.3.1

Install

1.6s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.3.1 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 17.8MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.6s · import 0.000s · 18MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

expand

✓ from parameter_expansion import expand

✗ from parameter_expansion_patched import ParameterExpander

✓ from parameter_expansion import pe

ParameterExpansionNullError

✓ from parameter_expansion import ParameterExpansionNullError

Creates a ParameterExpander with an environment dict, then expands a string with shell parameter syntax.

from parameter_expansion_patched import ParameterExpander expander = ParameterExpander(env={'USER': 'alice', 'HOME': '/home/alice'}) result = expander.expand('Hello ${USER:-default}, your home is ${HOME}') print(result) # Hello alice, your home is /home/alice

Debug

Known issues

gotchaThe expander does NOT access the actual OS environment by default. You must pass a dict or use os.environ explicitly. Failing to do so may lead to empty expansions.

fix

If you want to use the real environment, pass os.environ: ParameterExpander(env=os.environ).

affects: all

gotchaThe library only supports a subset of shell parameter expansion features. Known missing: ${!indirect}, ${parameter:offset:length}, ${parameter/pattern/string} substitution.

fix

Check the documentation for supported syntax before relying on advanced patterns.

affects: all

Upgrade

Version history

0.3.1latest on PyPI · released May 4, 2022

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/nexB/parameter-expansion-patched ↗

packagehttps://pypi.org/project/parameter-expansion-patched/ ↗