python - 键盘中断处理程序在 pycharm 中不起作用

Question

我尝试使用 CTRL F2 退出该代码或通过停止按钮关闭进程，但从未调用 finally 子句。我希望当我停止进程时将数据写入文件。

  for root, dirnames, files in os.walk(r"c:\ahmed\SpeedFT-meter12\peakdata"):
        for name in files:
            timeStamps.append(name.replace('peakdata_','').replace('.bz2',''))
            print(name.replace('peakdata_','').replace('.bz2',''))
    i  = 0
    try:
        for dirpath, dirnames, filenames in os.walk(r"C:\ahmed\SpeedFT-meter12\peakdata"):
                for filename in [f for f in filenames if f.endswith(".bz2")]:
                    path = os.path.join(dirpath, filename)
                    print(path)
                    process_data(path, i)
    except KeyboardInterrupt:
        pass

    finally:
        print("writing data")
        general_pd['TimeStamp'] = TimeStamp
        general_pd['S_strain_HOY'] = S1
        general_pd['S_strain_HMY'] = S2
        general_pd['S_strain_HUY'] = S3
        general_pd['S_strain_ROX'] = S4
        general_pd['S_strain_LOX'] = S5
        general_pd['S_strain_LMX'] = S6
        general_pd['S_strain_LUX'] = S7
        general_pd['S_strain_VOY'] = S8
        general_pd['S_temp_HOY'] = T1
        general_pd['S_temp_HMY'] = T2
        general_pd['S_temp_HUY'] = T3
        general_pd['S_temp_LOX'] = T4
        general_pd['S_temp_LMX'] = T5
        general_pd['S_temp_LUX'] = T6
        writer = pd.ExcelWriter(r'c:\ahmed\median_data.xlsx', engine='xlsxwriter')
        # Convert the dataframe to an XlsxWriter Excel object.
        general_pd.to_excel(writer, sheet_name='Sheet1')
        # Close the Pandas Excel writer and output the Excel file.
        writer.save()

Answer 1

您可能错过 except/finally 闭包的原因是您在 try/except 之外中断了脚本(即在 for name in files: 循环期间)

使用最少的代表性示例始终有助于调试任何问题，请尝试运行/停止:

try:
    time.sleep(100)
except KeyboardInterrupt:
    print('Graceful stop')
finally:
    print('Cleanup')

如果您仍然遇到问题，请向您的 PyCharm 版本提供完整的异常消息。