human
Solve the following python programming problem given the following code:
def get_mnist_file(fpath, origin) : 
    datadir = os.path.dirname (fpath) 
    if (not os.path.exists (datadir)) : 
        os.makedirs (datadir) 
try : 
        f = open (fpath) 
except : 
        print ('Downloading data from', origin) 
        global progbar 
        progbar = None 
        def dl_progress(count, block_size, total_size) : 
            global progbar 
            if (progbar is None) : 
                progbar = Progbar (total_size) 
else : 
                progbar.update ((count * block_size)) 
urlretrieve (origin, (fpath + '.gz'), dl_progress) 
        progbar = None 
        fin = gzip.open ((f + '.gz'), 'rb') 
        fout = open (fpath, 'wb') 
        fout.write (fin.read ()) 
        fin.close () 
        fout.close () 
return fpath 

    
    

    Fix the buggy line: fin = gzip.open ((f + '.gz'), 'rb')
assistant
#Here is Python code to fix the buggy line: fin = gzip.

fin = gzip.open ((fpath + '.gz'), 'rb')