[issue21301] pathlib missing Path.expandvars(env=os.environ)

[Alain Mellan]

New submission from Alain Mellan:

A lot of times paths are manipulated with environment variables that may even be expanded multiple times in a loop. For example, I have a path defined as "$RUNDIR/logfile.txt" and expanding the path for a bunch of different RUNDIRs in a loop.

By default, it should take os.environ and optionally a different dictionary.

Just like os.path.expandvars(), it should expand $VAR, ${VAR} and %VAR%

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components: Library (Lib)
messages: 216796
nosy: Alain.Mellan
priority: normal
severity: normal
status: open
title: pathlib missing Path.expandvars(env=os.environ)
type: enhancement

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21301>
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