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import os
import sys
def unicode_path(path):
if isinstance(path, str):
return path
return path.decode(sys.getfilesystemencoding())
def str_path(path):
return path
def normalize_path(path):
path = os.path.normcase(os.path.normpath(path))
return unicode_path(path)
def is_same_file(path_a, path_b):
"""Checks whether path_a and path_b refer to the same file. It does this
by normalizing the paths (and case if applicable) and eliminating any
symbolic links along the way."""
path_a = normalize_path(os.path.realpath(path_a))
path_b = normalize_path(os.path.realpath(path_b))
return path_a == path_b
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