fix: run pip with --isolated to avoid bad local config (#6531)

Resolves: #6521

fix: run pip with --isolated to avoid bad local config (#6531)
Resolves: #6521
1242fac5 · Bjorn Neergaard · GitHub · cc3f9942 · 1242fac5
Commit 1242fac5 authored Sep 15, 2022 by Bjorn Neergaard Committed by GitHub Sep 15, 2022
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src/poetry/utils/pip.py
+7 -1

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--- a/src/poetry/utils/pip.py
+++ b/src/poetry/utils/pip.py
@@ -25,7 +25,13 @@ def pip_install(
    # either the virtual environment or the virtualenv package embedded wheel. Version
    # checks are a wasteful network call that adds a lot of wait time when installing a
    # lot of packages.
-    args = ["install", "--disable-pip-version-check", "--prefix", str(environment.path)]
+    args = [
+        "install",
+        "--disable-pip-version-check",
+        "--isolated",
+        "--prefix",
+        str(environment.path),
+    ]

    if not is_wheel and not editable:
        args.insert(1, "--use-pep517")