Current File : //opt/alt/python37/lib/python3.7/site-packages/paste/util/findpackage.py
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
import sys
import os
def find_package(dir):
"""
Given a directory, finds the equivalent package name. If it
is directly in sys.path, returns ''.
"""
dir = os.path.abspath(dir)
orig_dir = dir
path = map(os.path.abspath, sys.path)
packages = []
last_dir = None
while 1:
if dir in path:
return '.'.join(packages)
packages.insert(0, os.path.basename(dir))
dir = os.path.dirname(dir)
if last_dir == dir:
raise ValueError(
"%s is not under any path found in sys.path" % orig_dir)
last_dir = dir
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