今天滚系统，再次遭遇包冲突：
(168/168) checking for file conflicts [###########################################################] 100% error: failed to commit transaction (conflicting files) python2-requests: /usr/lib/python2.7/site-packages/requests/__init__.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/__init__.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/adapters.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/adapters.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/api.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/api.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/auth.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/auth.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/certs.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/certs.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/compat.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/compat.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/cookies.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/cookies.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/exceptions.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/exceptions.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/hooks.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/hooks.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/models.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/models.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/packages/__init__.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/packages/__init__.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/sessions.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/sessions.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/status_codes.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/status_codes.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/structures.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/structures.pyc exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/utils.py exists in filesystem python2-requests: /usr/lib/python2.7/site-packages/requests/utils.pyc exists in filesystem Errors occurred, no packages were upgraded. [tong@T7:~] %
是youcompleteme 依赖了的新包 python2-requests 导致的。
==> New package : extra/python2-chardet 2.3.0-2 (required by python2-requests) extra/python2-requests 2.11.1-1 (required by vim-youcompleteme-git) extra/python2-urllib3 1.19.1-1 (required by python2-requests) community/python2-bottle 0.12.10-1 (required by vim-youcompleteme-git) community/python2-future 0.16.0-1 (required by vim-youcompleteme-git) community/python2-futures 3.0.5-1 (required by vim-youcompleteme-git) community/python2-jedi 0.9.0-2 (required by vim-youcompleteme-git) community/python2-waitress 1.0.1-1 (required by vim-youcompleteme-git)
查看了冲突文件，并不属于任何包：
[tong@T7:~] % pacman -Qo /usr/lib/python2.7/site-packages/requests/certs.py error: No package owns /usr/lib/python2.7/site-packages/requests/certs.py [tong@T7:~] % pacman -Qo /usr/lib/python2.7/site-packages/requests/cookies.py 1 ↵ error: No package owns /usr/lib/python2.7/site-packages/requests/cookies.py [tong@T7:~] % pacman -Ql python2-requests 1 ↵ error: package 'python2-requests' was not found [tong@T7:~]
查看 pip2，发现是pip2安装的这个包：
[tong@T7:~] % pip2 list --format=legacy |grep request requests (2.10.0) [tong@T7:~] %
从 pip2 卸载掉该包：
[tong@T7:~] % sudo pip2 uninstall requests 2 ↵ Uninstalling requests-2.10.0: /usr/lib/python2.7/site-packages/requests-2.10.0.dist-info/DESCRIPTION.rst ... ... /usr/lib/python2.7/site-packages/requests/utils.pyc Proceed (y/n)? y Successfully uninstalled requests-2.10.0 [tong@T7:~] %
再滚一次：
( 8/10) Updating the desktop file MIME type cache... ( 9/10) Updating the MIME type database... (10/10) Updating Vim help tags... ==> Packages no longer required by any installed package: boost ncurses5-compat-libs [tong@T7:~] %
圆满成功，T7又一次获得了进化。:)
当然还有另一招，就是 --force 。