Expand system variables Unix style
Project description
expandvars
Expand system variables Unix style
Inspiration
This module is inspired by GNU bash's variable expansion features. It can be used as an alternative to Python's os.path.expandvars function.
This can be better utilized to read variables from config files to get the capability to read values from environment variables. For example:
[default]
my_secret_access_code = "${ACCESS_CODE:-default_access_code}"
NOTE: Although it copies most of the common behaviours, it doesn't follow it strictly. For example, it doesn't work with arrays.
Usage
from expandvars import expandvars
print(expandvars("$PATH:$HOME/bin:${SOME_UNDEFINED_PATH:-/custom/path}"))
# /bin:/sbin:/usr/bin:/usr/sbin:/home/you/bin:/custom/path
Examples
For now, refer to the test cases to see how it behaves.
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