pip install pretty-errors     

寫一個函數測試：

def divided_zero():
   for i in range(10, -1, -1):
       print(10/i)


divided_zero()     

在沒有import這個pretty-errors前，輸出的錯誤信息有些冗余：

Traceback (most recent call last):
 File "c:\Users\HUAWEI\.vscode\extensions\ms-python.python-2019.11.50794\pythonFiles\ptvsd_launcher.py", line 43, in <module>
   main(ptvsdArgs)
 File "c:\Users\HUAWEI\.vscode\extensions\ms-python.python-2019.11.50794\pythonFiles\lib\python\old_ptvsd\ptvsd\__main__.py",
line 432, in main
   run()
 File "c:\Users\HUAWEI\.vscode\extensions\ms-python.python-2019.11.50794\pythonFiles\lib\python\old_ptvsd\ptvsd\__main__.py",
line 316, in run_file
   runpy.run_path(target, run_name='__main__')
 File "D:\anaconda3\lib\runpy.py", line 263, in run_path
   pkg_name=pkg_name, script_name=fname)
 File "D:\anaconda3\lib\runpy.py", line 96, in _run_module_code
   mod_name, mod_spec, pkg_name, script_name)
 File "D:\anaconda3\lib\runpy.py", line 85, in _run_code
   exec(code, run_globals)
 File "d:\source\sorting-visualizer-master\sorting\debug_test.py", line 6, in <module>
   divided_zero()
 File "d:\source\sorting-visualizer-master\sorting\debug_test.py", line 3, in divided_zero
   print(10/i)
ZeroDivisionError: division by zero
    

我們使用剛安裝的pretty_errors，import下:

import pretty_errors

def divided_zero():
   for i in range(10, -1, -1):
       print(10/i)

divided_zero()

此時看看輸出的錯誤信息，非常精簡只有2行，去那些冗余信息：

ZeroDivisionError:
division by zero

完整的輸出信息如下圖片所示，中間一道分割線，然后輸出異常的堆棧，最后是精簡的異常名稱和提示。