docs: def global_matches(self, text):
          """Compute matches when text is a simple name.
  
          Return a list of all keywords, built-in functions and names currently
          defined in self.namespace that match.
  
          """
          import keyword
          matches = []
          seen = {"__builtins__"}
          n = len(text)
          for word in keyword.kwlist:
              if word[:n] == text:
                  seen.add(word)
                  matches.append(word)
          for nspace in [self.namespace, builtins.__dict__]:
              for word, val in nspace.items():
                  if word[:n] == text and word not in seen:
                      seen.add(word)
                      matches.append(self._callable_postfix(val, word))
          return matches