human
Solve the following python programming problem given the following code:
def hashed_download(url, temp, digest) : 
    'Download ``url`` to ``temp``, make sure it has the SHA-256 ``digest``,
    and return its path.' 
    def opener() : 
        opener = build_opener (HTTPSHandler ()) 
        for handler in opener.handlers : 
            if isinstance (handler, HTTPHandler) : 
                opener.handlers.remove (handler) 
return opener 
def read_chunks(response, chunk_size) : 
        while True : 
            chunk = response.read (chunk_size) 
            if (not chunk) : 
                break 
(yield chunk) 
response = opener ().open (file) 
    path = join (temp, urlparse (url).path.split ('/') [(- 1)]) 
    actual_hash = sha256 () 
    with open (path, 'wb') as file : 
        for chunk in read_chunks (response, 4096) : 
            file.write (chunk) 
            actual_hash.update (chunk) 
actual_digest = actual_hash.hexdigest () 
    if (actual_digest != digest) : 
        raise HashError (url, path, actual_digest, digest) 
return path 

    
    

    Fix the buggy line: response = opener ().open (file)
assistant
#Here is Python program to fix the buggy line: response = opener ().

response = opener ().open (url)