From 854fd7296bb9306d46ba3cc8bb7c6f18a7960ed6 Mon Sep 17 00:00:00 2001 From: Tomas Hrnciar Date: Sun, 26 Apr 2020 21:19:03 +0200 Subject: [PATCH] Prevent removing of the system packages installed under /usr/lib when pip install -U is executed. Resolves: rhbz#1550368 Co-Authored-By: Michal Cyprian Co-Authored-By: Victor Stinner --- src/pip/_internal/req/req_install.py | 3 ++- src/pip/_internal/resolution/legacy/resolver.py | 5 ++++- src/pip/_internal/utils/misc.py | 11 +++++++++++ 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py index 4759f4a..2e76e35 100644 --- a/src/pip/_internal/req/req_install.py +++ b/src/pip/_internal/req/req_install.py @@ -39,6 +39,7 @@ from pip._internal.utils.misc import ( ask_path_exists, backup_dir, display_path, + dist_in_install_path, dist_in_site_packages, dist_in_usersite, get_distribution, @@ -446,7 +447,7 @@ class InstallRequirement(object): "lack sys.path precedence to {} in {}".format( existing_dist.project_name, existing_dist.location) ) - else: + elif dist_in_install_path(existing_dist): self.should_reinstall = True else: if self.editable: diff --git a/src/pip/_internal/resolution/legacy/resolver.py b/src/pip/_internal/resolution/legacy/resolver.py index c9b4c66..ff361d8 100644 --- a/src/pip/_internal/resolution/legacy/resolver.py +++ b/src/pip/_internal/resolution/legacy/resolver.py @@ -34,6 +34,7 @@ from pip._internal.resolution.base import BaseResolver from pip._internal.utils.compatibility_tags import get_supported from pip._internal.utils.logging import indent_log from pip._internal.utils.misc import dist_in_usersite, normalize_version_info +from pip._internal.utils.misc import dist_in_install_path from pip._internal.utils.packaging import ( check_requires_python, get_requires_python, @@ -207,7 +208,9 @@ class Resolver(BaseResolver): """ # Don't uninstall the conflict if doing a user install and the # conflict is not a user install. - if not self.use_user_site or dist_in_usersite(req.satisfied_by): + if ((not self.use_user_site + or dist_in_usersite(req.satisfied_by)) + and dist_in_install_path(req.satisfied_by)): req.should_reinstall = True req.satisfied_by = None diff --git a/src/pip/_internal/utils/misc.py b/src/pip/_internal/utils/misc.py index 24a7455..5fd48d3 100644 --- a/src/pip/_internal/utils/misc.py +++ b/src/pip/_internal/utils/misc.py @@ -31,6 +31,7 @@ from pip._vendor.six.moves.urllib.parse import unquote as urllib_unquote from pip import __version__ from pip._internal.exceptions import CommandError from pip._internal.locations import ( + distutils_scheme, get_major_minor_version, site_packages, user_site, @@ -403,6 +404,16 @@ def dist_in_site_packages(dist): return dist_location(dist).startswith(normalize_path(site_packages)) +def dist_in_install_path(dist): + """ + Return True if given Distribution is installed in + path matching distutils_scheme layout. + """ + norm_path = normalize_path(dist_location(dist)) + return norm_path.startswith(normalize_path( + distutils_scheme("")['purelib'].split('python')[0])) + + def dist_is_editable(dist): # type: (Distribution) -> bool """ -- 2.25.4