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-rw-r--r--coverage/parser.py6
1 files changed, 2 insertions, 4 deletions
diff --git a/coverage/parser.py b/coverage/parser.py
index 010cd73..6332f63 100644
--- a/coverage/parser.py
+++ b/coverage/parser.py
@@ -1,6 +1,6 @@
"""Code parsing for Coverage."""
-import dis, re, sys, token, tokenize
+import collections, dis, re, sys, token, tokenize
from coverage.backward import StringIO
from coverage.backward import open_source, range # pylint: disable=W0622
@@ -242,7 +242,7 @@ class CodeParser(object):
"""
excluded_lines = self.first_lines(self.excluded)
- exit_counts = {}
+ exit_counts = collections.defaultdict(int)
for l1, l2 in self.arcs():
if l1 < 0:
# Don't ever report -1 as a line number
@@ -253,8 +253,6 @@ class CodeParser(object):
if l2 in excluded_lines:
# Arcs to excluded lines shouldn't count.
continue
- if l1 not in exit_counts:
- exit_counts[l1] = 0
exit_counts[l1] += 1
# Class definitions have one extra exit, so remove one for each: