traceback.print_stack() using IPython's ultrat

问题:

For debugging/logging purposes, I would like to write the full stack to a file (such as in this question). I can do this using traceback.format_stack(). However, I would like it to look like the more verbose tracebacks that IPython outputs, for example, formatting with IPython.core.ultratb.VerboseTB.

It appears the classes and methods in IPython.core.ultratb require information on exceptions, as they are designed for tracebacks. But I have no exception: I just want to display the stack in a verbose way.

How can I use the output methods of IPython.core.ultratb.VerboseTB to format the stack such as reported by traceback.extract_stack() or inspect.stack()?

回答1:

import IPython.core.ultratb
import sys

try:
    1/0
except Exception as exc:
    tb = IPython.core.ultratb.VerboseTB()
    print(tb.text(*sys.exc_info()))

# --------------------------------------------------------------------------
# ZeroDivisionError                         Traceback (most recent call last)
# <ipython-input-8-725405cc4e58> in <module>()
#       1 try:
# ----> 2     1/0
#       3 except Exception as exc:
#       4     tb = IPython.core.ultratb.VerboseTB()
#       5     print(tb.text(*sys.exc_info()))
# 
# ZeroDivisionError: division by zero