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#!/usr/bin/env python
# -*- coding: utf-8 -*-
def common_path(paths):
paths = [path.split("/") for path in paths]
common = []
for items in zip(*paths):
if all(item == items[0] for item in items):
common.append(items[0])
else:
break
return "/".join(common)
paths = [
"/a/b/c/1/x.pl",
"/a/b/c/d/e/2/x.pl",
"/a/b/c/d/3/x.pl",
"/a/b/c/4/x.pl",
"/a/b/c/d/5/x.pl",
]
print(common_path(paths)) # Output: /a/b/c
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