我正在尝试将 PRAW 包pip2从 2.1.3 更新到最新（2.1.4），但由于某种原因，在找到 2.1.4 版本后，它会再次安装 2.1.3。
% pip2 search praw
praw - PRAW, an acronym for `Python Reddit API Wrapper`, is a python package that allows for simple access to reddit's API.
INSTALLED: 2.1.3
LATEST: 2.1.4
这是详细的日志。我试过做-U，--update和sudo pip2 install praw==2.1.4
Downloading/unpacking praw==2.1.4
Running setup.py egg_info for package praw
running egg_info
writing requirements to pip-egg-info/praw.egg-info/requires.txt
writing pip-egg-info/praw.egg-info/PKG-INFO
writing top-level names to pip-egg-info/praw.egg-info/top_level.txt
writing dependency_links to pip-egg-info/praw.egg-info/dependency_links.txt
writing entry points to pip-egg-info/praw.egg-info/entry_points.txt
warning: manifest_maker: standard file '-c' not found
reading manifest file 'pip-egg-info/praw.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'pip-egg-info/praw.egg-info/SOURCES.txt'
Requested praw==2.1.4, but installing version 2.1.3
Requirement already satisfied (use --upgrade to upgrade): requests>=1.2.0 in /usr/lib/python2.7/site-packages (from praw==2.1.4)
Requirement already satisfied (use --upgrade to upgrade): six in /usr/lib/python2.7/site-packages (from praw==2.1.4)
Requirement already satisfied (use --upgrade to upgrade): update-checker>=0.5 in /usr/lib/python2.7/site-packages (from praw==2.1.4)
Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/lib/python2.7/site-packages (from update-checker>=0.5->praw==2.1.4)
Installing collected packages: praw
Found existing installation: praw 2.1.3
Uninstalling praw:
Removing file or directory /usr/bin/praw-multiprocess
Removing file or directory /usr/lib/python2.7/site-packages/praw-2.1.3-py2.7.egg-info
Removing file or directory /usr/lib/python2.7/site-packages/praw/__init__.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/__init__.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/decorators.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/decorators.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/errors.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/errors.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/handlers.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/handlers.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/helpers.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/helpers.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/internal.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/internal.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/multiprocess.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/multiprocess.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/objects.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/objects.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/praw.ini
Removing file or directory /usr/lib/python2.7/site-packages/praw/settings.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/settings.pyc
Removing file or directory /usr/lib/python2.7/site-packages/praw/tests/__init__.py
Removing file or directory /usr/lib/python2.7/site-packages/praw/tests/__init__.pyc
Successfully uninstalled praw
Running setup.py install for praw
running install
running build
running build_py
running install_lib
creating /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/praw.ini -> /usr/lib/python2.7/site-packages/praw
creating /usr/lib/python2.7/site-packages/praw/tests
copying build/lib/praw/tests/__init__.py -> /usr/lib/python2.7/site-packages/praw/tests
copying build/lib/praw/internal.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/__init__.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/objects.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/handlers.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/decorators.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/settings.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/errors.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/multiprocess.py -> /usr/lib/python2.7/site-packages/praw
copying build/lib/praw/helpers.py -> /usr/lib/python2.7/site-packages/praw
byte-compiling /usr/lib/python2.7/site-packages/praw/tests/__init__.py to __init__.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/internal.py to internal.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/__init__.py to __init__.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/objects.py to objects.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/handlers.py to handlers.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/decorators.py to decorators.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/settings.py to settings.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/errors.py to errors.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/multiprocess.py to multiprocess.pyc
byte-compiling /usr/lib/python2.7/site-packages/praw/helpers.py to helpers.pyc
running install_egg_info
running egg_info
writing requirements to praw.egg-info/requires.txt
writing praw.egg-info/PKG-INFO
writing top-level names to praw.egg-info/top_level.txt
writing dependency_links to praw.egg-info/dependency_links.txt
writing entry points to praw.egg-info/entry_points.txt
warning: manifest_maker: standard file '-c' not found
reading manifest file 'praw.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'praw.egg-info/SOURCES.txt'
Copying praw.egg-info to /usr/lib/python2.7/site-packages/praw-2.1.3-py2.7.egg-info
running install_scripts
Installing praw-multiprocess script to /usr/bin
writing list of installed files to '/tmp/pip-NKy2i9-record/install-record.txt'
Successfully installed praw
Cleaning up...
这是在运行 Python 2.7.5 的 Arch Linux 上。