inspect.getouterframes() 函数上的"索引"术语是什么？

Question

我在python上做了一个"help(inspect.getouterframes)"，结果如下:

getouterframes(frame, **context**=1)
Get a list of records for a frame and all higher (calling) frames.
Each record contains a frame object, filename, line number, function
name, a list of lines of context, and **index within the context**.

我只是想知道……这些"上下文"one_answers"索引"是什么意思?

谢谢!

Answer 1

从当前行周围的代码中添加一些上下文。简单的例子:

import sys
import inspect
def f():
    # prev
    return sys._getframe()
    # next
# prev
framelist = inspect.getouterframes(f(), 3)
# next
for frame in framelist:
    print frame[3], "context:n"
    for i, line in enumerate(frame[-2]):
        print line.rstrip(),
        if i == frame[-1]:
            print ' *** index ***'
        else:
            print
    print

输出:

f context:
    # prev
    return sys._getframe()  *** index ***
    # next
<module> context:
# prev
framelist = inspect.getouterframes(f(), 3)  *** index ***
# next