Problem: Get variable

[JohnnyCoffee]

I have a file (runwsgi.py) that starts the server with the intention of getting a variable from a form using an ajax. The problem that prints the value none? See the wsgi code below, because I can't find an error:

Ajax section :

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$('.btn').text('search').click(function() {     // atribui valor a variavel     var ws_search_field = $('.ws-search-field').val();     // set method ajax:     $.ajax({         type : 'POST',         url : 'runwsgi.py',         data : { ws_search_field : ws_search_field },         dataType : 'json',

Wsgi section :

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import cgi   def apps(environ, ws_output):       ws_mtd = environ['REQUEST_METHOD']       ws_form = cgi.FieldStorage()     ws_input = ws_form.getvalue('ws_search_field')       if ws_mtd == 'POST':         status = '200 OK'         headers = [('Content-type', 'text/html; charset=utf-8')]         ws_output(status, headers)         return [str(ws_input).encode('utf-8')]

The output I get from the ws_search_field variable is: None
Note: Debugging in the chrome browser I see in the Form Data section it is possible to view the variable with the input value (ws_search_field: text)
Would there be an error to get the variable value in the code below?

1 2	ws_form = cgi.FieldStorage() ws_input = ws_form.getvalue('ws_search_field')