[DataFrame] Fixing bugs in groupby #2031
Merged
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Fixing a few bugs in
groupby
:Passing a
df.column_name
togroupby
as theby
parameter gave aValueError: buffer source array is read-only
. We fix this by extracting the values (those are all we need anyway).Also fixing a bug where we try to append the
tuple
partition to the list of args.Finally, I found a bug where we were trying to access the value in
keys_and_values
as a Series still, so it no longer needs to be anp.array
.