fix flake8 bugbear error

diff --git a/scripts/generate_identifier_pattern.py b/scripts/generate_identifier_pattern.py
index 6b47953577e15b32543a7e3c06b47e16afb2ac0c..24de8788c9f5024be2cc49f18b48fe24c366a08a 100755 (executable)
--- a/scripts/generate_identifier_pattern.py
+++ b/scripts/generate_identifier_pattern.py
@@ -30,8 +30,8 @@ def collapse_ranges(data):
     Source: https://stackoverflow.com/a/4629241/400617
     """
     for _, b in itertools.groupby(enumerate(data), lambda x: ord(x[1]) - x[0]):
-        b = list(b)
-        yield b[0][1], b[-1][1]
+        lb = list(b)
+        yield lb[0][1], lb[-1][1]
 
 
 def build_pattern(ranges):