small optimize for util.match

Author: spacemanspiff2007

stackprinter/utils.py

@@ -4,14 +4,15 @@
 import colorsys
 from collections import OrderedDict
 
+
 def match(string, patterns):
-    if not isinstance(string, str):
+    if patterns is None or not isinstance(string, str):
         return False
     if isinstance(patterns, str):
         patterns = [patterns]
-    elif patterns is None:
-        return False
-    return any([bool(re.search(p, string)) for p in patterns])
+
+    return any(map(lambda p: re.search(p, string), patterns))
+
 
 def inspect_callable(f):
     """

tests/test_utils.py

@@ -0,0 +1,9 @@
+from stackprinter.utils import match
+import re
+
+
+def test_match():
+    assert match('my/ignored/path', None) is False
+    assert match('my/ignored/path', 'ignored')
+    assert match('my/ignored/path', ['not', 'ignored'])
+    assert match('my/ignored/path', [re.compile('not ignored'), re.compile('ignored')])