Конвертит все csv в utf8

for fname in ( filter( lambda x: x.endswith(".csv") , os.listdir(".") ) ):
    finp = open( fname,"rt")
    fout = open( fname.replace(".csv","-utf8.csv") ,"wt")
    fout.write(finp.read().decode("cp1251").encode("utf-8"))
    fout.close()
    finp.close()