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How to get environment variables in Python

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2019-05-23 17:28:556114browse

How to get environment variables in Python

Method 1 os reading

os reads directly and uses os to obtain the environment variable dictionary

How to get environment variables in Python

Print All environment variables, traverse the dictionary

How to get environment variables in Python

Method 2 pyhocon reading

pyhocon is a python configuration management library

pyhocon One of its functions is that it can be directly referenced using ${} in the configuration file. When pyhocon parses, it will automatically implement the above resolveEnv logic, corresponding to the environment variable.

The official website is as follows:https://github.com/chimpler/pyhocon

The configuration file is as follows:

default.conf

How to get environment variables in Python

${HOME} will automatically obtain the HOME in the environment variable when parsing and using parsing

How to use

How to get environment variables in Python

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