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-rw-r--r--Lib/lib2to3/patcomp.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/lib2to3/patcomp.py b/Lib/lib2to3/patcomp.py
index 0a259e90af..2012ec4855 100644
--- a/Lib/lib2to3/patcomp.py
+++ b/Lib/lib2to3/patcomp.py
@@ -32,7 +32,7 @@ class PatternSyntaxError(Exception):
def tokenize_wrapper(input):
"""Tokenizes a string suppressing significant whitespace."""
- skip = set((token.NEWLINE, token.INDENT, token.DEDENT))
+ skip = {token.NEWLINE, token.INDENT, token.DEDENT}
tokens = tokenize.generate_tokens(io.StringIO(input).readline)
for quintuple in tokens:
type, value, start, end, line_text = quintuple