Interpret the complete steps of setting PyCharm environment variables

Full explanation of the steps for setting environment variables in PyCharm, specific code examples are required

PyCharm is a powerful Python integrated development environment that can help Developers can develop and debug Python projects quickly and efficiently. When developing with PyCharm, you sometimes need to set environment variables to configure some parameters of the project. This article will introduce in detail how to set environment variables in PyCharm, with specific code examples.

Step One: Open PyCharm

First, open PyCharm and load your Python project. Select "Run" in PyCharm's top menu bar and click "Edit Configurations".

Step 2: Set environment variables

In the pop-up "Run/Debug Configurations" window, select the configuration item you want to set environment variables in the list on the left, such as Python Interpreter or Python Script. In the "Configuration" tab on the right, you can see a column called "Environment variables", where we can set environment variables.

Step 3: Add environment variables

Click the small plus sign " " below the "Environment variables" column, and then you can start adding environment variables in the form of key-value pairs. For example, if you want to set an environment variable named "API_KEY" and the corresponding value is "your_api_key", then you can enter "API_KEY" in the "Name" column and "your_api_key" in the "Value" column.

Step 4: Save the configuration

After completing the setting of environment variables, remember to click the "OK" button in the lower right corner of the window to save the configuration. You can then rerun your Python project and the newly set environment variables will take effect.

Code example

Suppose you want to use the previously set "API_KEY" environment variable in Python code, which can be obtained through the following code:

import os

api_key = os.getenv("API_KEY")

if api_key:
    print("API Key设置成功，数值为:", api_key)
else:
    print("API Key未设置")

Through the above steps and code Example, you can easily set and use environment variables in PyCharm to conveniently manage your Python projects. I hope this article is helpful to you, and happy programming!

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