"Premature end of script headers: wsgihandler.py" on usage of BytesIO()

[Yasir Saleem]

Hi all,

I am generating graphs using "cairo plot" in web2py project. Here I am using BytesIO() stream for generating graphs. Everything runs fine when I run on localhost but when I deploy it on apache server and then run from different machines OR from different browsers in same machine then the server becomes halt and in apache error log, I found this error message:
Premature end of script headers: wsgihandler.py,

Furthermore, it occurs only when I use BytesIO() stream for generating graphs. In all other cases, it run smoothly.

Please guide me that how I should resolve this issue. Furthermore, please also guide, if I can use any stream other BytesIO()