python怎么修改安裝路徑，Python pip install修改默認下載路徑

1. 查看Python安裝和依賴信息：cmd命令窗口python -m site

E:\workspace\python\Django>python -m site                                                                
sys.path = [                                                                                             'E:\\workspace\\python\\Django',                                                                     'D:\\Program Files\\python\\python37.zip',                                                           'D:\\Program Files\\python\\DLLs',                                                                   'D:\\Program Files\\python\\lib',                                                                    'D:\\Program Files\\python',                                                                         'C:\\Users\\Administrator\\AppData\\Roaming\\Python\\Python37\\site-packages',                       'D:\\Program Files\\python\\lib\\site-packages',                                                     'D:\\Program Files\\python\\lib\\site-packages\\you_get-0.4.1475-py3.7.egg',                         
]                                                                                                        
USER_BASE: 'C:\\Users\\Administrator\\AppData\\Roaming\\Python' (exists)                                 
USER_SITE: 'C:\\Users\\Administrator\\AppData\\Roaming\\Python\\Python37\\site-packages' (exists)        
ENABLE_USER_SITE: True

可以看到

• python安裝目錄
• USER_SITE：自定義Python依賴安裝包的基礎路徑
• USER_BASE:自定義Python腳本

2. 查看依賴配置site.py的路徑

   python -m site -help                                                          
   # site.py的路徑
   D:\Program Files\python\lib\site.py [--user-base] [--user-site]     
   

3. 修改site.py

# USER_SITE = None
# USER_BASE = None
USER_SITE = "D:\\Program Files\\python\\Lib\\site-packages"
USER_BASE = "D:\\Program Files\\python\\Scripts"

注意盡量寫到python目錄