Access the iterator object in the debugger

Question

Is there no way to access the iterator object or its state from within the for loop?

Using pdbor ipdb, for example, I can niterate over and over again with help , but not see which iteration I am in (ex post, I mean, of course, I could use an enumeration, but only before starting the debugger).

defcreates an object, and fordoes the same, doesn't it? But the function has a name - and the iterator does not, is not available in memory? By the way, is a function accessible from inside her body without knowing the name?

(Answers to Python questions : accessing the iterator object in for-loops and Iteration again in the for loop suggest that this is not possible, but it seems to be very strange, I'm used to having to check something in python.)

Answer 1

What do you think the "internal state" of the iterator looks like?

• If I repeat the lines read from the file, it will be some kind of buffer file and the position of the character in the current buffer.

• If I iterate over the Fibonacci sequence, these will be the last two values ​​used to calculate the next.

• If I iterate over a database query, the result may be the database cursor used to read the next row.

• , .

• , .

Python. , , . , , next() , ( , ).

next() for, , for v in someiterable: ... :

iterator = iter(someiterable)
for v in iterator:
    ... # Can refer to `v` or even call `v.next()` here ...

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