CGI script is in plain text

[A]

I have a webhosting account with one company.
They have Apache running.
When I start CGI script from a web browser, the result is plain text( the copy of that script)
I can not access
httpd.conf
file so I changed
..htaccess
file. I put into it

Options +ExecCGI
Sethandler /usr/bin/python.exe .py

but the result is the same, plain text
Can you please help?
Thanks
Ladislav