* posixpath.py: Fix border cases in normpath ('/foo/..' should return '/')
* ftplib.py: made cwd() use 'CDUP' when dirname is '..'
* FL.py: added new constant FL_PLACE_FULLSCREEN
diff --git a/Lib/ftplib.py b/Lib/ftplib.py
index e846ffe..8342b09 100644
--- a/Lib/ftplib.py
+++ b/Lib/ftplib.py
@@ -336,7 +336,11 @@
 
 	# Change to a directory
 	def cwd(self, dirname):
-		self.voidcmd('CWD ' + dirname)
+		if dirname == '..':
+			cmd = 'CDUP'
+		else:
+			cmd = 'CWD ' + dirname
+		self.voidcmd(cmd)
 
 	# Retrieve the size of a file
 	def size(self, filename):