Python 无法显示直方图的终端

我正在完成一些课程，当我在终端窗口中运行所需的代码时，我并没有像书中所说的那样得到直方图的输出

    import pandas as pd
    import numpy as np
    import matplotlib
    bank_train = pd.read_csv("~/Downloads/Data/bank_marketing_training")
    bank_train['index'] = pd.Series(range(0,26874))
    bank_train['days_since_previous'] = bank_train['days_since_previous'].replace({999: np.NaN})
    bank_train['days_since_previous'].plot(kind = 'hist', title = 'Histogram of Days Since Previous')

对于我得到的输出：

<AxesSubplot:title={'center':'Histogram of Days Since Previous'}, ylabel='Frequency'>

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提前感谢您的帮助

请尝试在代码末尾添加

matplotlib.pyplot.show（）

。

谢谢！柱状图弹出了最后一段代码。