core (memory): profile is checked in startSession (an error is raised if it doesn't exist)

src/memory/memory.py

@@ -318,17 +318,17 @@ class Memory(object):
 
     ## Profiles/Sessions management ##
 
-    def _startSession(self, password, profile_key):
-        profile = self.getProfileName(profile_key)
-        return self.startSession(password, profile)
-
     def startSession(self, password, profile):
         """"Iniatialise session for a profile
 
         @param password(unicode): profile session password
             or empty string is no password is set
         @param profile: %(doc_profile)s
+        @raise exceptions.ProfileUnknownError if profile doesn't exists
+        @raise exceptions.PasswordError: the password does not match
         """
+        profile = self.getProfileName(profile)
+
         def createSession(dummy):
             """Called once params are loaded."""
             self._entities_cache[profile] = {}