89 lines
3.6 KiB
Diff
89 lines
3.6 KiB
Diff
commit b6d5da6796801862eb751a93d507c343af0604d6
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Author: Victor Stinner <vstinner@redhat.com>
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Date: Tue Sep 18 17:13:51 2018 +0200
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Subject: Prevent removing of the system packages installed under /usr/lib
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when pip install -U is executed.
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Resolves: rhbz#1550368
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Co-Authored-By: Michal Cyprian <m.cyprian@gmail.com>
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diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py
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index 922d10c..6f73f33 100644
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--- a/src/pip/_internal/req/req_install.py
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+++ b/src/pip/_internal/req/req_install.py
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@@ -29,7 +29,7 @@ from pip._internal.utils.hashes import Hashes
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from pip._internal.utils.logging import indent_log
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from pip._internal.utils.misc import (
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_make_build_dir, ask_path_exists, backup_dir, call_subprocess,
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- display_path, dist_in_site_packages, dist_in_usersite, ensure_dir,
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+ display_path, dist_in_install_path, dist_in_site_packages, dist_in_usersite, ensure_dir,
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get_installed_version, rmtree,
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)
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from pip._internal.utils.packaging import get_metadata
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@@ -359,7 +359,7 @@ class InstallRequirement(object):
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"lack sys.path precedence to %s in %s" %
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(existing_dist.project_name, existing_dist.location)
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)
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- else:
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+ elif dist_in_install_path(existing_dist):
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self.conflicts_with = existing_dist
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return True
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diff --git a/src/pip/_internal/resolve.py b/src/pip/_internal/resolve.py
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index 2d9f1c5..4ad9e77 100644
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--- a/src/pip/_internal/resolve.py
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+++ b/src/pip/_internal/resolve.py
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@@ -20,7 +20,7 @@ from pip._internal.exceptions import (
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)
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from pip._internal.req.constructors import install_req_from_req
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from pip._internal.utils.logging import indent_log
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-from pip._internal.utils.misc import dist_in_usersite, ensure_dir
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+from pip._internal.utils.misc import dist_in_install_path, dist_in_usersite, ensure_dir
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from pip._internal.utils.packaging import check_dist_requires_python
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logger = logging.getLogger(__name__)
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@@ -123,7 +123,9 @@ class Resolver(object):
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"""
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# Don't uninstall the conflict if doing a user install and the
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# conflict is not a user install.
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- if not self.use_user_site or dist_in_usersite(req.satisfied_by):
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+ if ((not self.use_user_site
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+ or dist_in_usersite(req.satisfied_by))
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+ and dist_in_install_path(req.satisfied_by)):
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req.conflicts_with = req.satisfied_by
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req.satisfied_by = None
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diff --git a/src/pip/_internal/utils/misc.py b/src/pip/_internal/utils/misc.py
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index 84a421f..c879a21 100644
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--- a/src/pip/_internal/utils/misc.py
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+++ b/src/pip/_internal/utils/misc.py
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@@ -29,7 +29,7 @@ from pip._vendor.six.moves.urllib import parse as urllib_parse
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from pip._internal.exceptions import CommandError, InstallationError
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from pip._internal.locations import (
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running_under_virtualenv, site_packages, user_site, virtualenv_no_global,
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- write_delete_marker_file,
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+ write_delete_marker_file, distutils_scheme,
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)
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from pip._internal.utils.compat import (
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WINDOWS, console_to_str, expanduser, stdlib_pkgs,
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@@ -328,6 +328,16 @@ def dist_in_site_packages(dist):
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).startswith(normalize_path(site_packages))
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+def dist_in_install_path(dist):
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+ """
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+ Return True if given Distribution is installed in
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+ path matching distutils_scheme layout.
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+ """
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+ norm_path = normalize_path(dist_location(dist))
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+ return norm_path.startswith(normalize_path(
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+ distutils_scheme("")['purelib'].split('python')[0]))
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+
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+
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def dist_is_editable(dist):
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"""Is distribution an editable install?"""
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for path_item in sys.path:
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