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Use PIPENV_SKIP_LOCK environment variable #4797

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Feb 20, 2022
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1 change: 1 addition & 0 deletions news/4797.feature.rst
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Use environment variable `PIPENV_SKIP_LOCK` to control the behaviour of lock skipping.
4 changes: 3 additions & 1 deletion pipenv/environments.py
Original file line number Diff line number Diff line change
Expand Up @@ -315,13 +315,15 @@ def initialize(self):
if interactive.
"""

self.PIPENV_SKIP_LOCK = False
self.PIPENV_SKIP_LOCK = bool(os.environ.get("PIPENV_SKIP_LOCK", False))
"""If set, Pipenv won't lock dependencies automatically.

This might be desirable if a project has large number of dependencies,
because locking is an inherently slow operation.

Default is to lock dependencies and update ``Pipfile.lock`` on each run.

Usage: `export PIPENV_SKIP_LOCK=true` OR `export PIPENV_SKIP_LOCK=1` to skip automatic locking

NOTE: This only affects the ``install`` and ``uninstall`` commands.
"""
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