Learn PyCharm environment variable configuration from scratch

Learn PyCharm environment variable configuration from scratch

PyCharm is a powerful Python integrated development environment (IDE) for quickly and efficiently developing Python programs . In the process of developing Python projects using PyCharm, it often involves the need to set and use environment variables. Environment variables can help us configure different parameters and values ​​in different environments, improving the flexibility and portability of the code. This article will introduce how to configure environment variables in PyCharm, and provide specific code examples to help readers better understand and apply.

1. Configure global environment variables in PyCharm

PyCharm provides a simple and convenient way to configure global environment variables. First open PyCharm, click "Run" -> "Edit Configurations" in the menu bar.

Then in the pop-up dialog box, select the name of the project you want to configure environment variables, and add custom environment variables in the "Environment variables" column on the right. Click the " " sign to add an environment variable in the format of "variable name=value", such as "DEBUG=True".

After the configuration is completed, click "OK" to save the settings. At this point, the global environment variables have been configured and can be directly called and used in the project.

2. Configure environment variables during running/debugging in PyCharm

In addition to global environment variables, we can also configure specific environment variables during running or debugging in PyCharm. This method is suitable for scenarios where different parameters need to be used in specific situations.

Enter the Run/Debug configuration page of the project, you can see the "Environment variables" column, also click the " " sign to add the required environment variables.

For example, we can configure a specific code example to demonstrate how to configure environment variables in PyCharm. Suppose we have a Python file main.py with the following content:

import os

DEBUG = os.getenv('DEBUG', 'False')
print(f"DEBUG is set to {DEBUG}")

In this code, we use the os.getenv() function to get the ring named DEBUG

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