traceback.format_exc() or sys.exc_info() will yield more info if that’s what you want. import traceback import sys try: do_stuff() except Exception: print(traceback.format_exc()) # or print(sys.exc_info()[2])
You can turn off the traceback by limiting its depth. Python 2.x import sys sys.tracebacklimit = 0 Python 3.x In Python 3.5.2 and 3.6.1, setting tracebacklimit to 0 does not seem to have the intended effect. This is a known bug. Note that -1 doesn’t work either. Setting it to None does however seem to … Read more
You can get what you want by assigning to warnings.showwarning. The warnings module documentation itself recommends that you do that, so it’s not that you’re being tempted by the dark side of the source. 🙂 You may replace this function with an alternative implementation by assigning to warnings.showwarning. You can define a new function that … Read more
In Python 3.3 and later raise … from None may be used in this situation. try: import someProprietaryModule except ImportError: raise ImportError(‘It appears that <someProprietaryModule> is not installed…’) from None This has the desired results.
Using tblib you can pass wrapped exceptions and reraise them later: import tblib.pickling_support tblib.pickling_support.install() from multiprocessing import Pool import sys class ExceptionWrapper(object): def __init__(self, ee): self.ee = ee __, __, self.tb = sys.exc_info() def re_raise(self): raise self.ee.with_traceback(self.tb) # for Python 2 replace the previous line by: # raise self.ee, None, self.tb # example of how … Read more
You can remove the top of the traceback easily with by raising with the tb_next element of the traceback: except: ei = sys.exc_info() raise ei[0], ei[1], ei[2].tb_next tb_next is a read_only attribute, so I don’t know of a way to remove stuff from the bottom. You might be able to screw with the properties mechanism … Read more
A simple (and correct!) way to write what you want: score = int(input(‘Please enter your score for test ‘ + str(y) + ‘: ‘))
You are presumably encountering an exception and the program is exiting because of this (with a traceback). The first thing to do therefore is to catch that exception, before exiting cleanly (maybe with a message, example given). Try something like this in your main routine: import sys, traceback def main(): try: do main program stuff … Read more
import sys, os try: raise NotImplementedError(“No error”) except Exception as e: exc_type, exc_obj, exc_tb = sys.exc_info() fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1] print(exc_type, fname, exc_tb.tb_lineno)
traceback.format_exc() or sys.exc_info() will yield more info if that’s what you want. import traceback import sys try: do_stuff() except Exception: print(traceback.format_exc()) # or print(sys.exc_info()[2])