1 files changed, 4 insertions, 0 deletions
diff --git a/wsgitools/filters.py b/wsgitools/filters.py
index 509ffde..efba982 100644
--- a/wsgitools/filters.py
+++ b/wsgitools/filters.py
@@ -199,6 +199,7 @@ class RequestLogWSGIFilter(BaseWSGIFilter):
         """
         @type log: file-like
         """
+        BaseWSGIFilter.__init__(self)
         assert hasattr(log, "write")
         self.log = log
         self.time = time.strftime("%d/%b/%Y:%T %z")
@@ -268,6 +269,7 @@ class TimerWSGIFilter(BaseWSGIFilter):
         """
         @type pattern: str
         """
+        BaseWSGIFilter.__init__(self)
         self.pattern = pattern
         self.start = time.time()
     def filter_data(self, data):
@@ -292,6 +294,7 @@ class EncodeWSGIFilter(BaseWSGIFilter):
         """
         @type charset: str
         """
+        BaseWSGIFilter.__init__(self)
         self.charset = charset
     def filter_data(self, data):
         """BaseWSGIFilter interface
@@ -313,6 +316,7 @@ __all__.append("GzipWSGIFilter")
 class GzipWSGIFilter(BaseWSGIFilter):
     """Compresses content using gzip."""
     def __init__(self):
+        BaseWSGIFilter.__init__(self)
         self.compress = False
         self.sio = None
         self.gzip = None