cgitb.py 文件源码

def handle(self, info=None):
        info = info or sys.exc_info()
        if self.format == "html":
            self.file.write(reset())

        formatter = (self.format=="html") and html or text
        plain = False
        try:
            doc = formatter(info, self.context)
        except:                         # just in case something goes wrong
            doc = ''.join(traceback.format_exception(*info))
            plain = True

        if self.display:
            if plain:
                doc = doc.replace('&', '&amp;').replace('<', '&lt;')
                self.file.write('<pre>' + doc + '</pre>\n')
            else:
                self.file.write(doc + '\n')
        else:
            self.file.write('<p>A problem occurred in a Python script.\n')

        if self.logdir is not None:
            suffix = ['.txt', '.html'][self.format=="html"]
            (fd, path) = tempfile.mkstemp(suffix=suffix, dir=self.logdir)
            try:
                file = os.fdopen(fd, 'w')
                file.write(doc)
                file.close()
                msg = '<p> %s contains the description of this error.' % path
            except:
                msg = '<p> Tried to save traceback to %s, but failed.' % path
            self.file.write(msg + '\n')
        try:
            self.file.flush()
        except: pass