modified-iterating-list / W4701#
Iterated list '%s' is being modified inside for loop body, consider iterating through a copy of it instead.
Emitted when items are added or removed to a list being iterated through. Doing so can result in unexpected behaviour, that is why it is preferred to use a copy of the list.
# This is a placeholder for correct code for this message.
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Created by the modified_iteration checker.