Method prepare_header

IPython/core/ultratb.py:715–749

(self, etype: str, long_version: bool = False)

            return result

    def prepare_header(self, etype: str, long_version: bool = False) -> str:
        width = min(75, get_terminal_size()[0])
        if long_version:
            # Header with the exception type, python version, and date
            pyver = "Python " + sys.version.split()[0] + ": " + sys.executable
            date = time.ctime(time.time())
            theme = theme_table[self._theme_name]
            head = theme.format(
                [
                    (Token.Topline, theme.symbols["top_line"] * width),
                    (Token, "\n"),
                    (Token.ExcName, etype),
                    (Token, " " * (width - len(etype) - len(pyver))),
                    (Token, pyver),
                    (Token, "\n"),
                    (Token, date.rjust(width)),
                ]
            )
            head += (
                "\nA problem occurred executing Python code.  Here is the sequence of function"
                "\ncalls leading up to the error, with the most recent (innermost) call last."
            )
        else:
            # Simplified header
            head = theme_table[self._theme_name].format(
                [
                    (Token.ExcName, etype),
                    (
                        Token,
                        "Traceback (most recent call last)".rjust(width - len(etype)),
                    ),
                ]
            )

        return head

    def format_exception(self, etype, evalue):
        # Get (safely) a string form of the exception info