How to fetch environment variables in Mac OS X using python?
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24-10-2019 - |
سؤال
How can I lookup environment variables (e.g. export HG_USER from .profile) using python code in Mac OS X?
المحلول
os.environ
is a dictionary containing all the environment variables. You need to import os
before you can use it.
So, for example HG_USER would be accessed by os.environ['HG_USER']
.
نصائح أخرى
Use the os
module:
import os
os.environ
Returns a dictionary with the environment variables as keys.
Use os
:
>>> import os
>>> print os.environ["PATH"]
You can also the helper function os.getenv(varname[, value])
which will return the value of environment variable varname
, and if it not present will return value
which defaults to None
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