windows安裝pip報錯問題

安裝pip時報錯現象如下

D:\>python get-pip.py
C:\Python38\lib\site-packages\setuptools\distutils_patch.py:25: UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least import Setuptools first.
  warnings.warn(
Looking in indexes: http://pypi.douban.com/simple
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.
ERROR: Could not find a version that satisfies the requirement pip
ERROR: No matching distribution found for pip
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.

D:\>curl https://bootstrap.pypa.io/get-pip.py | python3。
'python3。' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

D:\>
D:\>curl https://bootstrap.pypa.io/get-pip.py | python
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1882k  100 1882k    0     0   171k      0  0:00:11  0:00:11 --:--:--  152k
C:\Python38\lib\site-packages\setuptools\distutils_patch.py:25: UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least import Setuptools first.
  warnings.warn(
Looking in indexes: http://pypi.douban.com/simple
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.
ERROR: Could not find a version that satisfies the requirement pip
ERROR: No matching distribution found for pip
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.

解決辦法

• 在系统目录C:\Users\用户\AppData\Roaming新建pip文件夹
• 在pip文件夹下新建pip.ini文件，并写入如下配置：

[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host = mirrors.aliyun.com

注意

• 安裝Windows版python.exe時，一定要以管理員模式打開並安裝，否則pip要人肉安裝，比如我
• curl get-pip.py 時，可以在任意盤符目錄，但當前用戶一定能可以訪問到該目錄
• 這個報錯是 pip 版本 >=7 時，使用鏡像源時，會提示源地址不受信任或不安全，需要ssl安全認證