手动安装python包

Question

我在我的工作电脑(windows btw)上安装pychopg2时遇到了一个问题。由于网络限制，使用pip是不可行的，所以我学会了如何手动安装软件包，经过几次尝试后，它似乎正常工作，安装运行没有错误：

running install
running bdist_egg
running egg_info
writing psycopg2.egg-info\PKG-INFO
writing dependency_links to psycopg2.egg-info\dependency_links.txt
writing top-level names to psycopg2.egg-info\top_level.txt
reading manifest file 'psycopg2.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'psycopg2.egg-info\SOURCES.txt'
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
running build_ext
creating build\bdist.win-amd64\egg
creating build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\compat.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\errorcodes.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\errors.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\extensions.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\extras.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\pool.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\sql.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\tz.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\_ipaddress.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\_json.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\_lru_cache.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\_psycopg.cp37-win_amd64.pyd -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\_range.py -> build\bdist.win-amd64\egg\psycopg2
copying build\lib.win-amd64-3.7\psycopg2\__init__.py -> build\bdist.win-amd64\egg\psycopg2
byte-compiling build\bdist.win-amd64\egg\psycopg2\compat.py to compat.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\errorcodes.py to errorcodes.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\errors.py to errors.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\extensions.py to extensions.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\extras.py to extras.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\pool.py to pool.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\sql.py to sql.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\tz.py to tz.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\_ipaddress.py to _ipaddress.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\_json.py to _json.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\_lru_cache.py to _lru_cache.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\_range.py to _range.cpython-37.pyc
byte-compiling build\bdist.win-amd64\egg\psycopg2\__init__.py to __init__.cpython-37.pyc
creating stub loader for psycopg2\_psycopg.cp37-win_amd64.pyd
byte-compiling build\bdist.win-amd64\egg\psycopg2\_psycopg.py to _psycopg.cpython-37.pyc
creating build\bdist.win-amd64\egg\EGG-INFO
copying psycopg2.egg-info\PKG-INFO -> build\bdist.win-amd64\egg\EGG-INFO
copying psycopg2.egg-info\SOURCES.txt -> build\bdist.win-amd64\egg\EGG-INFO
copying psycopg2.egg-info\dependency_links.txt -> build\bdist.win-amd64\egg\EGG-INFO
copying psycopg2.egg-info\top_level.txt -> build\bdist.win-amd64\egg\EGG-INFO
writing build\bdist.win-amd64\egg\EGG-INFO\native_libs.txt
zip_safe flag not set; analyzing archive contents...
psycopg2.__pycache__._psycopg.cpython-37: module references __file__
creating 'dist\psycopg2-2.8.4-py3.7-win-amd64.egg' and adding 'build\bdist.win-amd64\egg' to it
removing 'build\bdist.win-amd64\egg' (and everything under it)
Processing psycopg2-2.8.4-py3.7-win-amd64.egg
removing 'c:\users\user\anaconda\lib\site-packages\psycopg2-2.8.4-py3.7-win-amd64.egg' (and everything under it)
creating c:\users\user\anaconda\lib\site-packages\psycopg2-2.8.4-py3.7-win-amd64.egg
Extracting psycopg2-2.8.4-py3.7-win-amd64.egg to c:\users\user\anaconda\lib\site-packages
psycopg2 2.8.4 is already the active version in easy-install.pth

Installed c:\users\user\anaconda\lib\site-packages\psycopg2-2.8.4-py3.7-win-amd64.egg
Processing dependencies for psycopg2==2.8.4
Finished processing dependencies for psycopg2==2.8.4

但是我的代码编辑器仍然抱怨“没有名为my opg2的模块”。我使用的是在安装过程中添加到path中的anaconda3。它看起来可能会导致问题，但我不知道是不是它导致了包不被识别。此外，当我从cmd运行python时，它会说：

Warning:
This Python interpreter is in a conda environment, but the environment has
not been activated.  Libraries may fail to load.  To activate this environment
please see https://conda.io/activation

但是当我转到环境应该所在的文件夹时，它是空的。因此，我尝试创建一个，但我得到了另一个网络错误。我已经想不出点子了。

Answer 1

您正在运行Anaconda解释器，而没有激活环境。

运行conda activate env_name，其中env_name是您创建的环境，base是默认环境。然后，使用conda (首选)或pip从环境中安装包，并在环境处于活动状态时运行Python。