[meld] filters: Make the class methods actually class methods

[Kai Willadsen <kaiw src gnome org>]

commit 59f061a0c88e99e00fd9b2ca16819610cd7eb90b
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Oct 28 06:38:37 2018 +1000

    filters: Make the class methods actually class methods

 meld/filters.py | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/meld/filters.py b/meld/filters.py
index ab69b17d..8ec8ec32 100644
--- a/meld/filters.py
+++ b/meld/filters.py
@@ -82,19 +82,19 @@ class FilterEntry:
 
     @classmethod
     def compile_filter(cls, filter_string, filter_type):
-        if filter_type == FilterEntry.REGEX:
-            compiled = FilterEntry._compile_regex(filter_string)
-        elif filter_type == FilterEntry.SHELL:
-            compiled = FilterEntry._compile_shell_pattern(filter_string)
+        if filter_type == cls.REGEX:
+            compiled = cls._compile_regex(filter_string)
+        elif filter_type == cls.SHELL:
+            compiled = cls._compile_shell_pattern(filter_string)
         else:
             raise ValueError("Unknown filter type")
         return compiled
 
     @classmethod
     def compile_byte_filter(cls, filter_string, filter_type):
-        if filter_type == FilterEntry.REGEX:
-            compiled = FilterEntry._compile_byte_regex(filter_string)
-        elif filter_type == FilterEntry.SHELL:
+        if filter_type == cls.REGEX:
+            compiled = cls._compile_byte_regex(filter_string)
+        elif filter_type == cls.SHELL:
             compiled = None
         else:
             raise ValueError("Unknown filter type")