2016 Update

Task/Find-common-directory-path/Python/find-common-directory-path-3.py

@@ -1,16 +1,3 @@
->>> from itertools import takewhile
->>> def allnamesequal(name):
-	return all(n==name[0] for n in name[1:])
-
->>> def commonprefix(paths, sep='/'):
-	bydirectorylevels = zip(*[p.split(sep) for p in paths])
-	return sep.join(x[0] for x in takewhile(allnamesequal, bydirectorylevels))
-
->>> commonprefix(['/home/user1/tmp/coverage/test',
-                  '/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members'])
+>>> paths = ['/home/user1/tmp/coverage/test', '/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members']
+>>> os.path.dirname(os.path.commonprefix(paths))
 '/home/user1/tmp'
->>> # And also
->>> commonprefix(['/home/user1/tmp', '/home/user1/tmp/coverage/test',
-                  '/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members'])
-'/home/user1/tmp'
->>>

Task/Find-common-directory-path/Python/find-common-directory-path-4.py

@@ -0,0 +1,16 @@
+>>> from itertools import takewhile
+>>> def allnamesequal(name):
+	return all(n==name[0] for n in name[1:])
+
+>>> def commonprefix(paths, sep='/'):
+	bydirectorylevels = zip(*[p.split(sep) for p in paths])
+	return sep.join(x[0] for x in takewhile(allnamesequal, bydirectorylevels))
+
+>>> commonprefix(['/home/user1/tmp/coverage/test',
+                  '/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members'])
+'/home/user1/tmp'
+>>> # And also
+>>> commonprefix(['/home/user1/tmp', '/home/user1/tmp/coverage/test',
+                  '/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members'])
+'/home/user1/tmp'
+>>>