各種環境下修改Python解釋器和包路徑

一. terminal終端

環境：mac

shell: bash

Python: 手動安裝的，如果通過anaconda安裝，可以去對應的目錄下找解釋器位置

 

修改解釋器

1. 首先打開~/.bash_profile文件

answers-MacBook-Pro:~ answer$ vim ~/.bash_profile

2. 修改文件

①修改PATH後面綠色的部分，python解釋器存放在bin目錄下。

②添加alias python=python3，注意“=”前後不能有空格，否則會報錯

# Setting PATH for Python 3.8
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.8/bin:${PATH}"
export PATH

alias python=python3

3. 更新環境

answers-MacBook-Pro:~ answer$ source ~/.bash_profile 

4. 查看是否生效

終端輸入python或者python --version，可以看到3.8.3的字樣，說明當前默認解釋器已經是python3.8.3。修改成功

answers-MacBook-Pro:~ answer$ python
Python 3.8.3 (v3.8.3:6f8c8320e9, May 13 2020, 16:29:34) 
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

 

修改包路徑

1. 查看配置文件所在路徑，在終端執行python -m site help, 如下可以看到site.py 的路徑

answers-MacBook-Pro:~ answer$ python -m site help
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site.py [--user-base] [--user-site]

Without arguments print some useful information
With arguments print the value of USER_BASE and/or USER_SITE separated
by ':'.

Exit codes with --user-base or --user-site:
  0 - user site directory is enabled
  1 - user site directory is disabled by user
  2 - uses site directory is disabled by super user
      or for security reasons
 >2 - unknown error

2.  以管理員的方式進入該文件

answers-MacBook-Pro:~ answer$ sudo vi /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site.py

3.  在文件裏直接用/ENABLE搜索找到下面這三個參數

ENABLE_USER_SITE = None

# for distutils.commands.install
# These values are initialized by the getuserbase() and getusersitepackages()
# functions, through the main() function when Python starts.
USER_SITE = None
USER_BASE = None

4.  修改參數

上方改爲True，下方USER_SITE，包存放的位置，USER_BASE，/Library/Frameworks/Python.framework/Versions/3.8文件夾

ENABLE_USER_SITE = True

# for distutils.commands.install
# These values are initialized by the getuserbase() and getusersitepackages()
# functions, through the main() function when Python starts.
USER_SITE = "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages"
USER_BASE = "/Library/Frameworks/Python.framework/Versions/3.8"

5. 更新環境

answers-MacBook-Pro:~ answer$ source ~/.bashrc

6. 查看是否修改成功，這裏因爲我已經修改好了，所以前後沒什麼變化

answers-MacBook-Pro:~ answer$ python -m site
sys.path = [
    '/Users/answer',
    '/Library/Frameworks/Python.framework/Versions/3.8/lib/python38.zip',
    '/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8',
    '/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/lib-dynload',
    '/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages',
]
USER_BASE: '/Library/Frameworks/Python.framework/Versions/3.8' (exists)
USER_SITE: '/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages' (exists)
ENABLE_USER_SITE: True

 

二. Pycharm

 

 

三. Anaconda Jupyter

 

 

待更