Changing class name causes process to 'hang'

[Tim Johnson]

* Terry Reedy <tjreedy at udel.edu> [110312 13:28]:
> On 3/12/2011 2:53 PM, Tim Johnson wrote:
> 
> Is 'cgilib' *your* wrapper of the cgi module, or from a third party.
  cgilib is my module. I use the cgi module as follows:
## code below
    import cgi
    self.form = cgi.FieldStorage(keep_blank_values=1)
## /code
> Without seeing cgitools/cgirev, it is hard to say. Something like
> 
> while True:
>   try:
>     x = cgitools()
>     break
>   except NameError
>     pass
> 
> would produce the symptom ;-)
  Hmm! I'm unsure what you mean here, but
  I did do something like this:
## code below
if __name__=="__main__":
    import sys,traceback
    sys.stderr = sys.stdout ##
    try :
        print("Content-type: text/html\n")
        print("<pre>")
        cgi = CGI()
        print("here")
        print("CGI OUTPUT TEST")
        for i in range(cgi.len_path_parts()):
            print("path part # %d requested: %s" % (i,str(cgi[i])))
    except :
        traceback.print_exc()
## /code
And I get 
CGI OUTPUT TEST
path part # 0 requested: test
path part # 1 requested: this
Whether I use CGI or cgitools as the class name.

But, if I use CGI as the class name and instantiate from a large application
with numerous dependecies, the process hangs.
The same happens if I 'alias' cgitools, as in
class CGI(cgitools):        
    pass
It is as if some gremlin lives on my system and insists that I use
the name `cgitools' and only the name `cgitools'. I'm sure
this comes from a side effect somewhere in the process.
thanks for the reply
-- 
Tim 
tim at johnsons-web.com or akwebsoft.com
http://www.akwebsoft.com