Issue #25663: Make rlcompleter avoid duplicate global names
diff --git a/Lib/rlcompleter.py b/Lib/rlcompleter.py
index 73f8d80..7f61c67 100644
--- a/Lib/rlcompleter.py
+++ b/Lib/rlcompleter.py
@@ -102,13 +102,16 @@
"""
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 [__builtin__.__dict__, self.namespace]:
+ for nspace in [self.namespace, __builtin__.__dict__]:
for word, val in nspace.items():
- if word[:n] == text and word != "__builtins__":
+ if word[:n] == text and word not in seen:
+ seen.add(word)
matches.append(self._callable_postfix(val, word))
return matches