[mod_python] mod_python and os.system and os.popen

ouput = os.popen(command).read







Martha Zimet wrote:
> I am attempting to call os.system and os.popen from within
> a mod_python script and nothing happens. That is, the commands
> perform no action. I am attempting to use os.system and os.popen
> to execute wget, and I wonder if there any tricks that I am not
> aware of. I have been googling and didn't find anything useful. 
> Any assistance would be appreciated. 
>
> Here is some code where 'update' is called from an HTML form. 
> I have tried both os.system and os.popen with the same result.
> I read about Popen, rather than os.popen, but that does not 
> seem to exist in my implementation.
>
> Thanks in advance.
>
> Regards,
>
> /martha
>
> from mod_python import apache
> import cgi
> import pg
> from cgi import escape
> from urllib import unquote
> import sys
> import os
>
> def update(req):
>
>     # The getfirst() method returns the value of the first field
>     # with the name passed as the method argument
>     host = req.form.getfirst('host', '')
>     user = req.form.getfirst('user', '')
>     password = req.form.getfirst('password', '')    
>
>     # Escape the user input to avoid script injection attacks
>     host = cgi.escape(host)
>     user = cgi.escape(user)
>     password = cgi.escape(password)
>
>     try:
>         output = ''
>         command = "wget --user %s --password %s
> http://%s/svn/backend/able1.0/db/db.sql" % (user, password, host)
>         req.write(command)
>         req.write('\n')
>         ouput = os.popen(command).read
>         req.write(output)
>         req.write('\n')        
>
>     except Exception, e:
>         r = sys.exc_info()
>         generator = (str(x) for x in r)
>         newstring = ''.join(generator)
>         req.write(newstring)
>         req.write('\n')
>
>
>
>
>
>
>
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