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  1. Apache Arrow
  2. ARROW-3428

[Python] from_pandas gives incorrect results when converting floating point to bool

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      When converting Pandas data that contains floating point values to boolean, incorrect results are given

      In [2]: import pyarrow as pa
         ...: import pandas as pd
         ...: a = [0.0, 1.0, 2.0, None, float('NaN')]
         ...: 
      
      In [3]: s = pd.Series(a)
      
      In [4]: pa.Array.from_pandas(s, type=pa.bool_())
      Out[4]: 
      <pyarrow.lib.BooleanArray object at 0x7f1bfd099e68>
      [
        False,
        False,
        False,
        False,
        False
      ]
      

      Expected output should be True when value != 0

      This originated from SPARK-25461

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              bryanc Bryan Cutler
              bryanc Bryan Cutler
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