Collectives™ on Stack Overflow

Find centralized, trusted content and collaborate around the technologies you use most.

Teams

Q&A for work

Connect and share knowledge within a single location that is structured and easy to search.

so there is this piece of code I am trying to understand:

rois, target_class_ids, target_bbox, target_mask =\
                DetectionTargetLayer(config, name="proposal_targets")([
                    target_rois, input_gt_class_ids, gt_boxes, input_gt_masks])
DetectionTargetLayer is a Keras subclass layer. So what does the operator =\ mean? Is it just the same as '='?
                That's not an operator.  That's an equals sign with a line continuation.  The next line is appended to the end.
– Tim Roberts
                Nov 12, 2021 at 0:21
                This code is a bit misleading because the slash in =\ is actually not related to equal sign at all (and could be any distance from it). It's the line continuation character.
– 0x263A
                Nov 12, 2021 at 0:22
\ is not used as an operator, instead, it is used as an equals sign with a line continuation.
I see where you are confused, the code isn't really clear.
=\ is actually not related to equal sign at all.
This code:
rois, target_class_ids, target_bbox, target_mask =\
                DetectionTargetLayer(config, name="proposal_targets")([
                    target_rois, input_gt_class_ids, gt_boxes, input_gt_masks])
is IDENTICAL to this code:
rois, target_class_ids, target_bbox, target_mask = DetectionTargetLayer(config, name="proposal_targets")([target_rois, input_gt_class_ids, gt_boxes, input_gt_masks])
Because, as others have said, like in C, Bash, and many other languages, \ at the end of a line tells the Python interpreter to treat the next line as the same line, and ignore the \.
This question talks in detail about the usage of the line-continuation token in Python.