httputil.py 文件源码

def extract(environ, empty=False, err=False):
    """Extracts strings in form data and returns a dict.

    :param environ: WSGI environ
    :param empty: Stops on empty fields (default: Fault)
    :param err: Stops on errors in fields (default: Fault)
    """
    formdata = cgi.parse(environ['wsgi.input'], environ, empty, err)
    # Remove single entries from lists
    for key, value in iter(formdata.items()):
        if len(value) == 1:
            formdata[key] = value[0]
    return formdata