pycharm安裝第三方庫時報錯: Try to run this command from the system terminal. Make sure that you use the correct version of 'pip' installed for your Python interpreter located at

安裝第三方庫，提示：

Try to run this command from the system terminal. Make sure that you use the correct version of 'pip' installed for your Python interpreter located at 'D:\Programming\Python_Virtaul_Env\Python_Study\newvenv\Scripts\python.exe'.

原因和解決辦法

1.pycharm里安裝的pip與電腦中按照的pip版本不一致

 1）setting->project-project Interprete->查看pip的版本為19.2， 

     在cmd中查看： pip list  -->安裝的pip版本為21.3.1

   解決方法1：setting->project-project Interpreter->點擊pip->右側找到pip的版本選21.3.1，安裝完成。

  解決方法2：使用方法1，可能還是提示無法安裝，這時可以嘗試先卸載，然后再安裝

python3-m pip install --upgrade pip --force-reinstall

python -m pip uninstall pip

pycharm Terminal 中執行:

先下載：
https://bootstrap.pypa.io/get-pip.py然后切換到對應目錄，
再執行：python get-pip.py
檢查安裝的版本，在cmd或 pycharm Terminal 中執行:
>>pip --version

 【https://www.cnblogs.com/yaradish/p/10632246.html】

  解決方法3：嘗試 切換下載源可能會解決問題

                     https://mirrors.aliyun.com/pypi/simple/

                    https://pypi.tuna.tsinghua.edu.cn/simple/

  解決方法4：

將對應虛擬環境\Lib\site-packages\目錄下的pip文件夾刪除，

然后重新安裝，或者從python的安裝目錄拷貝一份過來，包括：pip文件夾和setup文件夾

  D:\Programs\Python\Python38-32\Lib\site-packages

 

  

  解決方法5：直接使用命令行安裝

pip install --trusted-host pypi.tuna.tsinghua.edu.cn -i https://pypi.tuna.tsinghua.edu.cn/simple  flask

或者使用執行如下python腳本，調用命令行來安裝

#coding:utf-8
import os
pipName = input("請輸入pip名字:")
cmdstr = ("pip install "+ pipName +" -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com")
information = os.popen(cmdstr)
re = information.read()
print(re)

# cmd函數
def popen(cmd, mode="r", buffering=-1):
    if not isinstance(cmd, str):
        raise TypeError("invalid cmd type (%s, expected string)" % type(cmd))
    if mode not in ("r", "w"):
        raise ValueError("invalid mode %r" % mode)
    if buffering == 0 or buffering is None:
        raise ValueError("popen() does not support unbuffered streams")
    import subprocess, io
    if mode == "r":
        proc = subprocess.Popen(cmd,
                                shell=True,
                                stdout=subprocess.PIPE,
                                bufsize=buffering)
        return os._wrap_close(io.TextIOWrapper(proc.stdout), proc)
    else:
        proc = subprocess.Popen(cmd,
                                shell=True,
                                stdin=subprocess.PIPE,
                                bufsize=buffering)
        return os._wrap_close(io.TextIOWrapper(proc.stdin), proc)