Method print_exc

Lib/timeit.py:140–171

Helper to print a traceback from the timed code. Typical use: t = Timer(...) # outside the try/except try: t.timeit(...) # or t.repeat(...) except: t.print_exc() The advantage over the standard traceback

(self, file=None, **kwargs)

        self.inner = local_ns["inner"]

    def print_exc(self, file=None, **kwargs):
        """Helper to print a traceback from the timed code.

        Typical use:

            t = Timer(...)       # outside the try/except
            try:
                t.timeit(...)    # or t.repeat(...)
            except:
                t.print_exc()

        The advantage over the standard traceback is that source lines
        in the compiled template will be displayed.

        The optional file argument directs where the traceback is
        sent; it defaults to sys.stderr.

        The optional colorize keyword argument controls whether the
        traceback is colorized; it defaults to False for programmatic
        usage. When used from the command line, this is automatically
        set based on terminal capabilities.
        """
        import linecache, traceback
        if self.src is not None:
            linecache.cache[dummy_src_name] = (len(self.src),
                                               None,
                                               self.src.split("\n"),
                                               dummy_src_name)
        # else the source is already stored somewhere else

        kwargs['colorize'] = kwargs.get('colorize', False)
        traceback.print_exc(file=file, **kwargs)

    def timeit(self, number=default_number):
        """Time 'number' executions of the main statement.