How do I configure environment variables in Python?

Methods for configuring python environment variables:

Right-click on the computer, select Properties, click on Advanced System Settings after entering, click on Environment Variables after entering, click on Path after entering the Environment Variable interface, add the installation path of python f: install in Path, it should be noted that if there is pip to install third-party libraries.

You need to add f: install to the variable, click OK to save the environment variable configuration, open the command prompt, enter python, press the enter key to see the python version, which means that the environment variable configuration is successful.

Related information

A program written in a compiled language such as C or C++ can be converted from a source file (i.e., C or C++) to a language (binary**, i.e., 0s and 1s) that your computer uses. This process is done through the compiler and different tags, options. To run the program, connect the software to copy your program from the hard drive to the memory and run it.

Programs written in Python do not need to be compiled into binary**. You can run the program directly from the source. Inside the computer, the Python interpreter converts the source ** into an intermediate form called bytecode, which is then translated into the machine language used by the computer and runs.

This makes it much simpler to use python. It also makes Python programs easier to port.

Here's how:1. The first step is to right-click on this computer on our computer, select Properties, and after entering, click on Advanced System Settings, as shown in the figure below

2. After the second step is entered, click on the environment variable, as shown in the figure below

5. Step 5: Click OK to save the environment variable configuration, open the command prompt, enter python, and press enter to see the python version, which means that the environment variable configuration is successful, as shown in the following figure:

Step 1:

Find the directory where you installed python.

For example, I installed it in the python folder of the D drive, and I found this folder.

Then copy the file address.

Ctrl+C to copy.

Step 2: Open the environment variable settings.

Start by opening the Control Panel.

Open the Control Panel.

Click on System Options.

Once clicked, find Advanced System Settings in the options on the left.

After selecting Advanced, you can see the Environment Variable Settings option and click on Environment Variables.

You can see his interface, then click on path, and then click again.

Then you can enter the interface, and then click New.

He will create a new path environment variable text.

Then enter the python directory you just copied here, for example, mine is d: python, then I will enter d: python, as shown below.

If you have just copied it, you can directly ctrl+v paste, and then press enter here, your python environment variable has been set, and then OK, OK, OK. It's all the way to the end.

Then win+r enter cmd enter.

Enter the Command Prompt.

After that, type python

Here's how:1. The first step is to right-click on this computer on our computer, select Properties, and after entering, click on Advanced System Settings, as shown in the figure below

2. After the second step is entered, click on the environment variable, as shown in the figure below

<>4. The fourth step is to add the installation path of python in the path, here is f: install, it should be noted that if there is pip to install a third-party library, you need to add f: install to the variable, as shown in the following figure:

5. Step 5: Click OK to save the environment variable configuration, open the command prompt, enter python, and press enter to see the python version, which means that the environment variable configuration is successful, as shown in the following figure:

First, right-click on the computer and select Properties; Then click on Advanced System Settings, click on Environment Variables; Then click on path to add the python installation path to the path; Finally, click OK.

Tools Raw Materials:

Windows 7 system.

Edition. Dell G3 computer.

1. Right-click on the computer to open Properties. Once inside, click on Advanced System Settings.

2. Click on Environment Variables.

3. Click Path.

4. Add the installation path of python in the path, here is f: install, it should be noted that if there is pip to install a third-party library, you need to add f: install to the variable.

5. After you are sure to save the environment variable configuration, open the command prompt, enter python, and press the enter key to see the python version, which means that the environment variable configuration is successful.

1. What is an environmental variable?

To quote the encyclopedia, an environment variable is an object with a specific name in the operating system that contains information that will be used by one or more applications. I'm sure you may still have some doubts when you see this, but don't worry, let's keep looking.

Recommended: Python Tutorial

2. Why do we need the first row variable of the environment?

Under the Windows system, if we install a certain software, after the installation is completed, a copy of the software will be generated in the installation directory. exe file, double-click on the file and we will be able to launch the software. But do we have to find it every time we want to run the software?

The path where the exe file is located, and then double-click, is obviously impossible, because there is so much software installed, it is impossible for us to remember the path of all the installed software, and if we want to run some software in other paths, it will be doomed.

This is where environment variables come into play.

3. The role of environmental variables.

As I just said, 1. With more and more software installed on the computer, we can't remember the installation path of all the software, and it is very troublesome to run a certain software. 2. If we want to run a certain software directly under a certain path, we can't do anything.

By adding the installation path of all software to the environment variables, when we want to run a certain software, double-click its shortcut or enter the software name in the DOS interface, and then the computer will look for the software in its current directory. In addition to the exe file, it also searches for the path of the software in the environment variables, finds it, and runs it.

In summary, when the PATH environment variable in Windows and DOS operating systems requires the system to run a program without telling it the full path where the program is located, the system should not only look for the program in the current directory, but also find the path specified in the path. Users can better run the process by setting environment variables.

Environment variables generally refer to some parameters used in the operating system to specify the operating environment of the operating system, such as temporary folder location and system folder location.

An environment variable is an object with a specific name in the operating system that contains information that will be used by one or more applications.

What does setting python's environment variables do:

When the system is asked to run a program without telling it the full path where the program is located, the system should look for the program in the current directory and find the path specified in the path. Users can set environment variables to run the process better.

If you install python without setting environment variables:

If you do not set the environment variables, typing python on the cmd command line will prompt that the python command cannot be found;

If you do not set the environment variables, when you install the third-party package of Python, it will prompt that the corresponding python version path cannot be found;

If you don't set environment variables, you won't find the path when you install the package with pip install.

1. Set environment variables, you can find the python command in the cmd command line;

2. Set the environment variables to find the corresponding python version path when installing the third package of exe;

3. Set the environment variables to find the path when using pip install the package.

Simply. Python sets environment variables to run scripts directly from the command line. Many IDEs also require you to preset Python environment variables, otherwise you won't find your Python parser.

Recommended: "Python Tutorial" is the above sharing about python setting environment variables, what is the use? I hope it will be helpful to you, and for more python tutorials, please pay attention to other related articles about Global Ivy League!