better_exchook 1.20190330.152253

功能

• 堆栈跟踪输出中的多行python语句。
• 每帧的彩色/格式化输出。
• python源代码的语法突出显示。
• 支持DomTerm， 默认情况下，它会折叠每个堆栈帧的所有细节， 从而提供了更全面的概述， 同时在需要的时候提供所有的细节。

安装

您只需将单个文件better_exchook.py复制到您的项目。

或者，也可以使用on PyPI 可通过以下方式安装：

pip install better_exchook

用法

importbetter_exchookbetter_exchook.install()# will just do: sys.excepthook = better_exchook

示例

python示例代码：

try:x={1:2,"a":"b"}deff():y="foo"x,42,sys.stdin.__class__,sys.exc_info,y,zf()exceptException:better_exchook.better_exchook(*sys.exc_info())

输出：

EXCEPTION
Traceback (most recent call last):
  File "better_exchook.py", line 478, in <module>
    line: f()
    locals:
      f = <local> <function f at 0x107f1de60>
  File "better_exchook.py", line 477, in f
    line: x, 42, sys.stdin.__class__, sys.exc_info, y, z
    locals:
      x = <global> {'a': 'b', 1: 2}
      sys = <global> <module 'sys' (built-in)>
      sys.stdin = <global> <open file '<stdin>', mode 'r' at 0x107d9f0c0>
      sys.stdin.__class__ = <global> <type 'file'>
      sys.exc_info = <global> <built-in function exc_info>
      y = <local> 'foo'
      z = <not found>
NameError: global name 'z' is not defined

python示例代码：

try:f=lambdax:Nonef(x,y)exceptException:better_exchook.better_exchook(*sys.exc_info())

输出：

EXCEPTION
Traceback (most recent call last):
  File "better_exchook.py", line 484, in <module>
    line: f(x, y)
    locals:
      f = <local> <function <lambda> at 0x107f1df50>
      x = <local> {'a': 'b', 1: 2}
      y = <not found>
NameError: name 'y' is not defined

python示例代码：

try:(lambdax:None)(__name__,42)# multilineexceptException:better_exchook.better_exchook(*sys.exc_info())

输出：

EXCEPTION
Traceback (most recent call last):
  File "better_exchook.py", line 490, in <module>
    line: (lambda x: None)(__name__,
                           42)  # multiline
    locals:
      x = <local> {'a': 'b', 1: 2}
      __name__ = <local> '__main__', len = 8
TypeError: <lambda>() takes exactly 1 argument (2 given)

python示例代码：

# use this to overwrite the global exception handlersys.excepthook=better_exchook.better_exchook# and failfinalfail(sys)

输出：

EXCEPTION
Traceback (most recent call last):
  File "better_exchook.py", line 497, in <module>
    line: finalfail(sys)
    locals:
      finalfail = <not found>
      sys = <local> <module 'sys' (built-in)>
NameError: name 'finalfail' is not defined

屏幕截图：

带有DomTerm：

类似项目

• https://github.com/patrys/great-justice
• Nose does something similar for assertion failures。
• ipython有类似的东西（this）。 这样做：from IPython.core import ultratb; sys.excepthook = ultratb.VerboseTB()。
• Ka Ping Yee的“cgitb.py”是Python的一部分， see here， code here。
• 见this 相关的stackoverflow问题。

–阿尔伯特·泽耶，<；http://www.az2000.de>；