[Python-Dev] Add os.path.resolve to simplify the use of os.readlink (original) (raw)
Armin Ronacher armin.ronacher at active-4.com
Thu Jun 21 12:23:25 CEST 2012
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Due to an user error on my part I was not using os.readlink correctly. Since links can be relative to their location I think it would make sense to provide an os.path.resolve helper that automatically returns the absolute path:
def resolve(filename):
try:
target = os.readlink(filename)
except OSError as e:
if e.errno == errno.EINVAL:
return abspath(filename)
raise
return normpath(join(dirname(filename), target))The above implementation also does not fail if an entity exists but is not a link and just returns the absolute path of the given filename in that case.
Regards, Armin
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