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LinkedHashMap is the Java implementation of a Hashtable like data structure (dict in Python) with predictable iteration order. That means that during a traversal over all keys, they are ordered by insertion. This is done by an additional linked list maintaining the insertion order.
Is there an equivalent to that in Python?
As of Python 3.7,
dictobjects maintain their insertion order by default.If you’re on Python 2.7 or Python >=3.1 you can use collections.OrderedDict in the standard library.
This answer to the question How do you retrieve items from a dictionary in the order that they’re inserted? contains an implementation of an ordered dict, in case you’re not using Python 3.x and don’t want to give yourself a dependency on the third-party ordereddict module.