lib-detect-testenv
Detect test environment - pytest, doctest, unittest, or regular execution
Decision gist · record as of 2026-08-14
Yes. Low install friction, permissive license, active maintenance, no known vulnerabilities, and a clear single-purpose API make this a straightforward choice if you need runtime test-environment detection. The CLI and Python API both work well for their intended use cases.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- Low friction: pure Python wheel with a single runtime dependency (rich-click).
- Active maintenance with a release 14 days ago.
License · maintenance · safety
MIT (permissive) — MIT license (permissive) — you can use, modify, and distribute this package freely with minimal restrictions.
last release 2026-07-31 (14 days) · last repo commit 2026-08-04
0 known vulnerabilities (OSV.dev, 2026-08-14) · 2,568,931 downloads/mo, #2,997 on PyPI
Alternatives
Verify before relying
pip install lib-detect-testenv
from lib_detect_testenv import is_testenv_active
if is_testenv_active():
print("Running in test environment")
else:
print("Running in production")- Whether rich-click's CLI integration is required for basic detection functions or optional.
- Performance characteristics when called repeatedly in tight loops during test execution.
What it is and what it does
lib-detect-testenv is a runtime detection library that identifies whether your Python code is executing under pytest, doctest (including PyCharm's docrunner), or setup.py test. It works by inspecting sys.argv and execution context to determine the active test runner, allowing you to conditionally enable or disable code paths based on whether tests are running.
The package exports both a Python API (functions like is_testenv_active(), is_pytest_active(), is_doctest_active()) and a command-line interface for shell scripting and CI/CD integration. It uses a three-level exit code system (0 for detected, 1 for not detected, 2 for error) to support programmatic shell usage. The single runtime dependency is rich-click, and it supports Python 3.10 and later on Linux, macOS, and Windows.
Use it for
- Conditionally skip expensive initialization or logging in production code when running under pytest.
- Detect doctest execution to apply different assertion or output formatting rules.
- Shell scripts and CI/CD pipelines that need to branch behavior based on whether tests are active.
- Detect setup.py test invocation to apply legacy test runner compatibility logic.
- Programmatic test environment checks in application startup code to adjust configuration or mocking.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Low install friction, permissive license, active maintenance, no known vulnerabilities, and a clear single-purpose API make this a straightforward choice if you need runtime test-environment detection. The CLI and Python API both work well for their intended use cases.
Install
lib-detect-testenv on PyPI
Before you install
Low friction: pure Python wheel with a single runtime dependency (rich-click). Active maintenance with a release 14 days ago. Requires Python 3.10 or later.
Requires Python 3.10 or later.
License in practice
MIT license (permissive) — you can use, modify, and distribute this package freely with minimal restrictions.
Quickstart
pip install lib-detect-testenv
from lib_detect_testenv import is_testenv_active
if is_testenv_active():
print("Running in test environment")
else:
print("Running in production")Verify before relying
- Whether rich-click's CLI integration is required for basic detection functions or optional.
- Performance characteristics when called repeatedly in tight loops during test execution.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagerich-click |
| Maintenance | Actively maintained 14 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 2,568,931 / month, #2,997 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Environment :: ConsoleLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Typing :: Typed |
Evidence: lib_detect_testenv-3.0.4-py3-none-any.whl
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