Small nit, found by Neal.
diff --git a/Lib/doctest.py b/Lib/doctest.py
index 31339ed..0db59ba 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -2631,10 +2631,10 @@
def _test():
testfiles = [arg for arg in sys.argv[1:] if arg and arg[0] != '-']
- if len(testfiles) > 0:
+ if testfiles:
for filename in testfiles:
if filename.endswith(".py"):
- # This is a module -- insert its dir into sys.path and try to
+ # It is a module -- insert its dir into sys.path and try to
# import it. If it is part of a package, that possibly won't work
# because of package imports.
dirname, filename = os.path.split(filename)