rU to r

In Python 3, universal newline handling is always on by default, so rU is no longer valid

Author: baugetfa

src/openalea/lpy/gui/simulation.py

@@ -355,7 +355,7 @@ def open(self,fname):
             elif answer == QMessageBox.Discard:
                 os.remove(bckupname)     
         os.chdir(os.path.dirname(self.fname))        
-        code = open(readname,'rU').read()
+        code = open(readname,'r').read()
         self.readonly = (not os.access(fname, os.W_OK))
         self.textedition = recovery
         self.setEdited(recovery)
@@ -367,7 +367,7 @@ def importtmpfile(self,fname):
         self.textedition = True
         self.setEdited(True)
         try:
-            lpycode = open(fname,'rU').read()
+            lpycode = open(fname,'r').read()
             self.opencode(lpycode)
             self._tmpfname = fname
         except: