How to set Python environment variables
1. What are environment variables?
Environment variables are a mechanism used in operating systems to store configuration information.
They are key-value pairs that can be accessed and used by programs or command-line tools.
In Python, we often need to use environment variables to configure Spam Number sensitive information, such as database connection strings, API keys, cloud service credentials, etc. This can separate this information from the code and improve the security and portability of the code.Environment variables can also be used to control the behavior of the Python interpreter, such as setting the default encoding format, enabling debugging mode, etc. In general, environment variables are an indispensable part of Python development.
2. How to set environment variables
Below we will introduce in detail how to set Python environment variables on different operating systems.
2.1 Windows system
On Windows systems, you can set environment variables by following Canadian Phone Number the steps below:
Open “Control Panel” > “System” > “Advanced System Settings” > “Environment Variables”.
In the “System Variables” or “User Variables” list, find the variable named “Path” and click “Edit”.
In the “Edit Environment Variables” window, click “New” and enter the full path to the bin subdirectory of the Python installation directory, for example, “C:\Python39\Scripts”.
Click “OK” to save the changes.
In addition to the Path variable, you can also add other custom environment variables. For example, create a variable named “DB_PASSWORD” and set its value to the database password.
