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pandas DataFrames have a :meth:`~DataFrame.merge` method, which provides similar functionality. The
data does not have to be sorted ahead of time, and different join types are accomplished via the
``how`` keyword.
.. ipython:: python
inner_join = df1.merge(df2, on=["key"], how="inner")
inner_join
left_join = df1.merge(df2, on=["key"], how="left")
left_join
right_join = df1.merge(df2, on=["key"], how="right")
right_join
outer_join = df1.merge(df2, on=["key"], how="outer")
outer_join
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