dweih commented on issue #47022:
URL: https://github.com/apache/arrow/issues/47022#issuecomment-3054365904
Sorry! Typo, I was trying something else and must have copied from the
wrong place...
```
import polars as pl
import pyarrow as pa
n = 100
cat_values = [f"cat_{i}" for i in range(n)]
df = pl.DataFrame({
"cat": cat_values,
"val": list(range(n))
})
arrow_table = df.to_arrow()
dict_type = pa.dictionary(index_type=pa.uint16(), value_type=pa.string())
arrow_table = arrow_table.set_column(
arrow_table.schema.get_field_index("cat"),
"cat",
arrow_table.column("cat").cast(dict_type)
)
print("Arrow schema:", arrow_table.schema)
try:
pdf = arrow_table.to_pandas()
print("Loaded into pandas successfully.")
except Exception as e:
print("Failed to load into pandas:")
print(e)
try:
pol_df = pl.from_arrow(arrow_table)
print("Loaded into Polars successfully.")
except Exception as e:
print("Failed to load into Polars:")
print(e)
```
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