你用到了一个旧版本的函数,要做一个替换,具体做法如下:
from numpy_financial import pmt
repay_pmt[n] = round(np.pmt(rates[n]/12, loan_per[n]*12, loan pv)*10000, 2)
repay_pmt[n] = round(pmt(rates[n]/12, loan_per[n]*12, loan pv)*10000, 2)