Fokko commented on issue #35441:
URL: https://github.com/apache/arrow/issues/35441#issuecomment-1893491662
I'm running into the same issue. When I create a table that has only
non-null values, it still defines the schema as nullable:
```python
import pyarrow as pa
df = pa.Table.from_pylist(
[
{"city": "Amsterdam", "lat": 52.371807, "long": 4.896029},
{"city": "San Francisco", "lat": 37.773972, "long": -122.431297},
{"city": "Drachten", "lat": 53.11254, "long": 6.0989},
{"city": "Paris", "lat": 48.864716, "long": 2.349014}
],
)
```
Here you can see that `not null` is not there.
```
city: string
lat: double
long: double
```
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