logging.py 文件源码

def log(level, console_color, html_color, fmt, *args, **kwargs):
    global last_no, buffer_lock, buffer, buffer_size
    string = '%s - [%s] %s\n' % (time.ctime()[4:-5], level, fmt % args)
    buffer_lock.acquire()
    try:
        set_console_color(console_color)
        sys.stderr.write(string)
        set_console_color(reset_color)

        last_no += 1
        buffer[last_no] = string
        buffer_len = len(buffer)
        if buffer_len > buffer_size:
            del buffer[last_no - buffer_size]
    except Exception as e:
        string = '%s - [%s]LOG_EXCEPT: %s, Except:%s<br>' % (time.ctime()[4:-5], level, fmt % args, e)
        last_no += 1
        buffer[last_no] = string
        buffer_len = len(buffer)
        if buffer_len > buffer_size:
            del buffer[last_no - buffer_size]
    finally:
        buffer_lock.release()

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