在Python中，如何获取当前帧？

In other languages I can obtain the current frame via a reflection api to determine what variables are local to the scope that I an currently in.

在其他语言中,我可以通过反射api获取当前帧,以确定哪些变量是我当前所在范围的局部变量。

Is there a way to do this in Python?

有没有办法在Python中执行此操作?

4 个解决方案

#1

import sys    
sys._getframe(number)

The number being 0 for the current frame and 1 for the frame up and so on up.

当前帧的数字为0,帧的数量为1,依此类推。

The best introduction I have found to frames in python is here

我在python中找到的帧的最佳介绍就在这里

However, look at the inspect module as it does most common things you want to do with frames.

但是,请查看检查模块,因为它确实是您要对框架执行的最常见操作。

#2

I use these little guys for debugging and logging:

我用这些小家伙进行调试和记录:

import sys

def LINE( back = 0 ):
    return sys._getframe( back + 1 ).f_lineno
def FILE( back = 0 ):
   return sys._getframe( back + 1 ).f_code.co_filename
def FUNC( back = 0):
    return sys._getframe( back + 1 ).f_code.co_name
def WHERE( back = 0 ):
   frame = sys._getframe( back + 1 )
   return "%s/%s %s()" % ( os.path.basename( frame.f_code.co_filename ), 
                           frame.f_lineno, frame.f_code.co_name )

#3

The best answer would be to use the inspect module; not a private function in sys.

最好的答案是使用检查模块;不是sys中的私有函数。

import inspect

current_frame = inspect.currentframe()

#4

-3

See the dir function.

请参阅dir函数。

sorry - not actually relevant to the frame, but still useful!

对不起 - 实际上与框架无关,但仍然有用!

#1

import sys    
sys._getframe(number)