确定当前运行Python Cod的行的缩进级别

Question

在程序运行时，是否可以确定Python中一行的缩进级别？我希望能够根据正在运行的脚本的大纲结构来组织日志文件。在

在下面的示例中，“first message”函数将生成0，“second message”将为1，“third message”为2，“fourth，fifth，sixth”消息将为0

logger.debug('First message')
if True:
    logger.info('Second message')
    if True:
        logger.info('Third message')


logger.warning('Fourth message')
logger.error('Fifth message')
logger.critical('Sixth message')

相应的日志文件如下所示：

^{pr2}$

Answer 1

我可以使用inspect.getouterframes（）功能。这假设缩进使用4''字符而不是'\t'字符。在

import inspect

def getIndentationLevel():    

    # get information about the previous stack frame
    frame, filename, line_number,function_name, lines, index = inspect.getouterframes(inspect.currentframe())[1]

    # count the number of characters in the line
    original_length = len(lines[0])

    # trim the line of left spaces and record the new length
    new_length = len(lines[0].lstrip())

    # take the difference between the two values and divide by 4 to get the level number
    return int((original_length - new_length) / 4)