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python - Pandas: unique dataframe

I have a DataFrame that has duplicated rows. I'd like to get a DataFrame with a unique index and no duplicates. It's ok to discard the duplicated values. Is this possible? Would it be a done by groupby?

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In [29]: df.drop_duplicates()
Out[29]: 
   b  c
1  2  3
3  4  0
7  5  9

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