如何从 CMD 运行 Pip 命令

据我所知,Python 2.7.9安装了 Pip,但是当我尝试从 CMD (Windows)执行 Pip 命令时,我得到了以下错误:

'pip' is not recognized as an internal or external command, operable program or batch file.

当我输入 python时,我确实得到了以下信息,这表明它已经被正确安装了:

Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

然而,我确实需要添加一些环境变量来让 python 部分在 CMD 上工作:

  • 加入环境变量

  • 定义系统变量 PYTHONPATH: "C:\Python27\"

我在 Python 目录中找不到 Pip 文件夹,但是在 C:\Python27\Lib\中有一个名为“ ensurepip”的文件夹。

有人知道如何让 Pip 命令开始在 CMD 工作吗?

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Little side note for anyone new to Python who didn't figure it out by theirself: this should be automatic when installing Python, but just in case, note that to run Python using the python command in Windows' CMD you must first add it to the PATH environment variable, as explained here.


To execute Pip, first of all make sure you have it installed, so type in your CMD:

> python
>>> import pip
>>>

And it should proceed with no error. Otherwise, if this fails, you can look here to see how to install it. Now that you are sure you've got Pip, you can run it from CMD with Python using the -m (module) parameter, like this:

> python -m pip <command> <args>

Where <command> is any Pip command you want to run, and <args> are its relative arguments, separated by spaces.

For example, to install a package:

> python -m pip install <package-name>

Make sure to also add "C:\Python27\Scripts" to your path. pip.exe should be in that folder. Then you can just run:

C:\> pip install modulename

Go to the folder where Python is installed .. and go to Scripts folder .

Do all this in CMD and then type :

pip

to check whether its there or not .

As soon as it shows some list it means that it is there .

Then type

pip install <package name you want to install>

Firstly make sure that you have installed python 2.7 or higher

Open Command Prompt as administrator and change directory to python and then change directory to Scripts by typing cd Scripts then type pip.exe and now you can install modules Step by Step:

  • Open Cmd

  • type in "cd \" and then enter

  • type in "cd python2.7" and then enter

Note that my python version is 2.7 so my directory is that so use your python folder here...

  • type in "cd Scripts" and enter

  • Now enter this "pip.exe"

  • Now it prompts you to install modules

Simple solution that worked for me is, set the path of python in environment variables,it is done as follows

  1. Go to My Computer
  2. Open properties
  3. Open Advanced Settings
  4. Open Environment Variables
  5. Select path
  6. Edit it

In the edit option click add and add following two paths to it one by one:

C:\Python27


C:\Python27\Scripts

and now close cmd and run it as administrator, by that pip will start working.

Newer versions of Python come with py, the Python Launcher, which is always in the PATH.

Here is how to invoke pip via py:

py -m pip install <packagename>

py allows having several versions of Python on the same machine.

As an example, here is how to invoke the pip from Python 2.7:

py -2.7 -m pip install <packagename>

In my case I was trying to install Flask. I wanted to run pip install Flask command. But when I open command prompt it I goes to C:\Users[user]>. If you give here it will say pip is not recognized. I did below steps

On your desktop right click Computer and select Properties

Select Advanced Systems Settings

In popup which you see select Advanced tab and then click Environment Variables

In popup double click PATH and from popup copy variable value for variable name PATH and paste the variable value in notepad or so and look for an entry for Python.

In my case it was C:\Users\[user]\AppData\Local\Programs\Python\Python36-32

Now in my command prompt i moved to above location and gave pip install Flask

enter image description here

This is the simplest way.

Within Command Prompt:

py -m pip install <ModuleNameGoesHere>

This will run anywhere as long as you have python installed.

Breakdown:

  • py is a universal python command for most versions of Python. Which is nice because you don't have to find and navigate to a specific or complex path.
  • -m stands for module
  • pip is the package management system used to install and manage software packages written in Python
  • install is the Pip command for installation
  • ModuleName... is the placeholder for the module/package object you wish to download into python.

Example:

py -m pip install requests or py -m pip install pandas