Simple CGI Web Server in Python on VMS

Question

I am trying to run an extremely simple CGI server on a VMS made in python.

import sys from BaseHTTPServer import HTTPServer from CGIHTTPServer import CGIHTTPRequestHandler server_address=('',8080) httpd = HTTPServer(server_address, CGIHTTPRequestHandler) httpd.serve_forever() 

The problem is that it serves static content correctly and tries to execute CGIs (it is in the right place, and I used these CGIs with Apache, so part is definitely not a problem), but it hangs somewhere. This is what I do not know about VMS.

Any pointer to the right direction will be appreciated. :)

Update: simplified, I need to run the program on VMS and somehow get the results of this program. Any links to the execution of subprocesses and obtaining their results are enough for me.

Answer 1

Are you using the Python port from http://hg.vmspython.org/vmspython/ ?

If so, I think this thread , and this file (which seems to implement the form of popen2 ) may contain the keys to your salvation. Apparently, there are VMS-specific modules (at least vms.starlet , vms.rtl.lib , vms.dvidef , vms.clidef ) in the port that provide interfaces for functions such as the VMS spawn function. However, the documentation seems spotty or nonexistent.

Answer 2

CGIHTTPServer.py uses os.fork , if available, subprocess.Popen , if not.

See the source code of the run_cgi method.

Experiment with the subprocess module to see if it / is running VMS on it.

Answer 3

To execute a subprocess and get its output in posix:

 Python 2.7.1+ (r271:86832, Apr 11 2011, 18:13:53) [GCC 4.5.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from subprocess import Popen, PIPE >>> output = Popen(['/bin/ls', '/'], stdout = PIPE).communicate()[0] >>> print output bin boot dev etc home ..snip.. root sbin >>> 

This is explicitly on Linux, so I'm not sure about the specifics of the VMS for Python or the subprocess module.

http://docs.python.org/library/subprocess.html