concat: accept Iterable as keys #639
Merged
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Accept
Iterable
instead oflist
askeys
inpd.concat()
. The PR features a basic test with dict values/keys as iterables.I checked the pandas 1.5 implementation, which casts iterable to list internally
https://github.com/pandas-dev/pandas/blob/996bd1125f21d10e08e2299a4099755f712a2fbf/pandas/core/reshape/concat.py#L508-L509