handle case where ignore patterns not defined

plugin/packages/wakatime/wakatime/__init__.py

@@ -140,8 +140,7 @@ def parseArguments(argv):
 
 
 def should_ignore(fileName, patterns):
-    if not patterns:
-        patterns = []
+    try:
         for pattern in patterns:
             try:
                 compiled = re.compile(pattern, re.IGNORECASE)
@@ -149,6 +148,8 @@ def should_ignore(fileName, patterns):
                     return pattern
             except re.error as ex:
                 log.warning('Regex error (%s) for ignore pattern: %s' % (str(ex), pattern))
+    except TypeError:
+        pass
     return False