human
Solve the following python programming problem given the following code:
def load(url, onreadystatechange = None, on_load_fn = None, async = False) : 
    setCompilerOptions ('noDebug') 
    wnd ().status = ('Loading ' + url) 
    req = createHttpRequest () 
    if (onreadystatechange is None) : 
        def onreadystatechange(evnt) : 
            if ((req.readyState == 4) and ((req.status == 200) or (req.status == 0))) : 
                str = req.responseText 
                wnd ().status = ('Loaded ' + url) 
                if (not (on_load_fn is None)) : 
                    on_load_fn (evnt, req) 
JS ('@{{req}}.onreadystatechange = @{{onreadystatechange}};') 
    req.open ('GET', url, async) 
    try : 
        req.send (None) 
        if async : 
            return None 
while True : 
            if ((req.status == 200) or ((onreadystatechange.status == 0) and req.responseText)) : 
                if (not (on_load_fn is None)) : 
                    on_load_fn (None, req) 
return req 
if ((req.status != 0) or (req.responseText != '')) : 
                break 
except : 
        pass 
raise AjaxError ('Synchronous error', req.status) 

    
    

    Fix the buggy line: if ((req.status == 200) or ((onreadystatechange.status == 0) and req.responseText)) :
assistant
#Here is Python program to fix the buggy line: if ((req.

if ((req.status == 200) or ((req.status == 0) and req.responseText)) :