How to set python environment variables under win7

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:

Python sets environment variables:

Find the path in the system variables, double-click on the path, and add it at the end";c:\python25"(no quotes). Next: Run ->cmd, type python in the command line window, and you can run.

Enter print"hello world!"

There should be something like this:

> print "hello world!" hello world!

#!/usr/bin/python

#import os

path="home"] +"/lib"

if :else:

print "exists"

dstfile=path + "/libeclipse_ct_debug_core_

utility_"

srcfile="./libeclipse_ct_debug_core_

utility_"

commandline = "cp ./libeclipse_ct_debug_

core_utility_ " + dstfile

ld_library_path"]=path

The above is the specific method of setting environment variables for python.

In general, it is enough to install it directly, if it doesn't work.

1.First of all, you need to register the python environment variable in the system: assuming that the installation path of python is c:, then modify the path in my computer-> properties->advanced-> environment variables-> system variables:

In order to run python commands in command-line mode, you need to append the directory to the environment variable path. )

path=path;c:\python26

After the above environment variables are set, you can directly use python commands on the command line. or execute"python *.py"Run the python script.

2.At this time, it is still only passable"python *.py"Run the python script, if you want to run *py, just change another environment variable pathext:

pathext=pathext;.py;.pym

3.In addition, when using Python, you may need to check the help documentation for a command frequently, such as using help('print'Check the instructions for using the print command. The default installation of python cannot view the help documentation, and a simple configuration is still required:

In the python installation directory, find and use.

hh -decompile .

Decompile it and add the directory it is in to the path environment variable mentioned above.