Python Import Environment Variables

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Python Import Environment Variables

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Python environment variables are variables that exist outside of your code and are part of your system s or current user s configurations Why would you want to use environment variables Environment variables provide the opportunity to make your code More streamlined by not needing to repeat constants such as API keys across multiple files How to access environment variables from Python Using the os.environ dictionary. In Python, the os.environ dictionary contains all the environment variables. The simplest way to retrieve a variable from inside your application is to use the standard dictionary syntax. For example, this is how you can access an environment variable named USER:

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Python Import Environment VariablesOnce installed, create a .env file in the root of your project which you can then open up to add your environment variables. $ touch .env # create a new .env file $ nano .env # open the .env file in the nano text editor ‌You can then add your environment variables like this: USER=alex KEY=hfy92kadHgkk29fahjsu3j922v9sjwaucahf First we need to import the os module into our Python script import os The os environ dictionary allows us to access all the environment variables set on our system We can retrieve the value of a specific environment variable using its name as the key

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