Mod_python error: "addheader /home/keisuke/public_html/addheader" Traceback (most recent call last): File "/usr/lib64/python2.7/site-packages/mod_python/apache.py", line 245, in FilterDispatch result = obj(fltr) File "//home/keisuke/public_html/addheader.py", line 322, in outputfilter r = filter.readline() IOError: Filter read error