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How to configure environment variables in Python

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Release: 2024-01-19 19:09:11
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How to set environment variables in python

Specific method for setting environment variables in Python:

Find PATH in the system variable, double-click to open it, then add ";C:\Python25" (excluding quotation marks) at the end, and click OK. Next, open the run menu, enter cmd and open the command line window, enter python to run.

enter

print "Hello World!"

should have the following results:

>>> print "Hello World!" Hello World!

Enter python in the command line window. The classification of Python setting environment variables in the article: Python Programming

#!/usr/bin/python

#FileName:setDbgServerBridge.py

import os

path=os.environ["HOME"] "/lib"

if os.path.exists(path)==False :

os.makedirs(path)

else:

print "exists"

dstFile=path "/libeclipse_ct_debug_core_

utility_DbgServerBridge.so"

srcFile=”./libeclipse_ct_debug_core_

utility_DbgServerBridge.so"

commandLine = "cp ./libeclipse_ct_debug_

core_utility_DbgServerBridge.so " dstFile

os.system(commandLine)

os.environ["LD_LIBRARY_PATH"]=path

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

How to set computer JAVA environment variables

(1). Right-click on the computer and enter the properties as shown below

How to configure environment variables in Python

(2). Click Advanced System Settings as shown below

How to configure environment variables in Python

(3), click on environment variables

How to configure environment variables in Python

(4), add two variables in user variables or system variables

1 Click the New button and add JAVA_HOME

in the variable name

Fill in the jdk installation path in the variable value (fill in the jdk version as shown below)

How to configure environment variables in Python

(5) Click the New button and add the path variable in the variable name

Fill in %JAVA_HOME%\bin in the variable value; (or jdk path to bin such as: F:\Java\jdk1.7.0_67\bin;) as shown below

Note: Add a semicolon at the end of the path

How to configure environment variables in Python

(6) Test the win r key (or start-run) and enter cmd to enter the command prompt window. Enter java –version in the command prompt window. If the following information is displayed, the configuration is successful.

How to configure environment variables in Python

Help how to set path variable in linux

PATH is an environment variable, capitalize

Those directories are the directories where you place the command. After entering the command, the system will search for the command in PATH

View current environment variables:

echo $PATH

set up:

export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

or export PATH=PATH:/XXX

It will become invalid after logging out. To remain valid, modify ~/.bashrc or ~/.bash_profile or system-level /etc/profile

ps:

For example, software under windows is installed in different directories under the program file

In Unix, the executable file is placed in PATH, and the library file is placed under the same level of lib, which is convenient for entering commands

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