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BUG: Parquet does not support saving fp16 GH#44846 #44847

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BUG: Parquet does not support saving fp16 GH#44846 #44847

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220ed2f
BUG: Parquet does not support saving fp16 GH#44846
Anirudhsekar96 Dec 10, 2021
5b8598e
BUG: Parquet does not support saving fp16 GH#44846
Anirudhsekar96 Dec 10, 2021
f60ef72
Added tests, changed location of fp16 checking to pyarrow write funct…
Anirudhsekar96 Dec 11, 2021
54b97d6
Used black formatter GH#44846
Anirudhsekar96 Dec 11, 2021
23b8681
Changed format of error message to include column names, changed test…
Anirudhsekar96 Dec 14, 2021
c19a9fa
Added release note in v1.4.0 io section #44847
Anirudhsekar96 Dec 14, 2021
3addd76
Merge branch 'master' into to_parquet_float16_conversion
Anirudhsekar96 Dec 14, 2021
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4 changes: 4 additions & 0 deletions pandas/io/parquet.py
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,10 @@ def validate_dataframe(df: DataFrame):
if not valid_names:
raise ValueError("Index level names must be strings")

# Paquet format does not support saving float16
if df.select_dtypes(include='float16').columns.size > 0:
raise ValueError("Parquet format does not support saving float16")

def write(self, df: DataFrame, path, compression, **kwargs):
raise AbstractMethodError(self)

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