sjyangkevin commented on issue #52753:
URL: https://github.com/apache/airflow/issues/52753#issuecomment-3092694495
Hi @Lee-W , @potiuk , I have a look into it, and seems like there are some
issues with both pandas and numpy after upgrading numpy from `1.26.4` to
`2.2.6`. Below is how I set up the breeze environment, please correct me if
there is anything wrong with the approach.
### Breeze Setup
First, I installed numpy==2.2.6 and put it into `dist`.
```
pip download numpy==2.2.6 --dest dist --no-deps
```
```
numpy-2.2.6-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
```
Then, I ran the following command to start airflow locally.
```
breeze start-airflow --python 3.12 --db-reset --auth-manager FabAuthManager
--use-distributions-from-dist
```
### Issues with numpy
For **numpy**, after upgrading to `2.2.6`, `qualname(o)`, where `o` is a
`np.bool_(False)` object, is resolved to `<class 'numpy.bool'>`. However, in
the numpy serializer, the qualified name we are checking is `numpy.bool_`. In
numpy 1.26.4, `qualname(o)` is resolved to `<class 'numpy.bool_'>`. However, I
think to reconstruct the object in deserializer, we still need to invoke
`numpy.bool_`. In my mind, I think we need to update this logic to something
like below.
```
serializers = [
"numpy.int8",
"numpy.int16",
"numpy.int32",
"numpy.int64",
"numpy.uint8",
"numpy.uint16",
"numpy.uint32",
"numpy.uint64",
"numpy.float64",
"numpy.float16",
"numpy.complex128",
"numpy.complex64",
]
If numpy major version == 1:
serializers += ["numpy.bool_"]
elif numpy major version == 2:
serializers += ["numpy.bool"]
def deserialize(...):
# check if it is a numpy bool, if so use numpy.bool_(data) to deserialize
```
https://github.com/apache/airflow/blob/11f512127917b781bba4d5de7dc336f9ffb56e9d/airflow-core/src/airflow/serialization/serializers/numpy.py#L34
<img width="1437" height="687" alt="Image"
src="https://github.com/user-attachments/assets/e42d6058-dad0-4eba-93b9-511cb5753d9f";
/>
### Issues with Pandas
For Pandas, I got the following issue. Not sure if you have some context
what this issue is about.
<img width="1437" height="687" alt="Image"
src="https://github.com/user-attachments/assets/53243982-b569-4769-9c11-39d287bdb3a0";
/>
### Running the DAG with `numpy==1.26.4`
```
breeze start-airflow --python 3.12 --db-reset --auth-manager FabAuthManager
```
<img width="1437" height="687" alt="Image"
src="https://github.com/user-attachments/assets/11404dff-bd29-4738-8a39-219449bfa645";
/>
### DAG code
```python
from airflow.decorators import dag, task
from pendulum import datetime
@dag(
start_date=datetime(2025, 5, 23),
schedule=None,
catchup=False,
tags=["serialization", "pydantic", "airflow"],
)
def pydantic_serde():
# 1. Pandas DataFrame
@task
def get_pandas():
import pandas as pd
import numpy as np
df = pd.DataFrame(np.random.randn(3, 2), columns=list("AB"))
return df
@task
def print_pandas(df):
print("Pandas DataFrame:", df)
# 2. Decimal
@task
def get_bignum():
from decimal import Decimal
return Decimal(1) / Decimal(7)
@task
def print_bignum(n):
print("Decimal:", n, type(n))
# 3. Built-in collections
@task
def get_all_builtins():
return {
"list": [1, 2, 3],
"set": {4, 5},
"tuple": (6, 7),
"frozenset": frozenset([8, 9])
}
@task
def print_all_builtins(obj):
print("Built-in Types:")
for k, v in obj.items():
print(f"{k}: {v} ({type(v)})")
# 4. NumPy scalar types - integers
@task
def get_numpy_ints():
import numpy as np
return {
"int8": np.int8(8),
"int16": np.int16(16),
"int32": np.int32(32),
"int64": np.int64(64),
"uint8": np.uint8(8),
"uint16": np.uint16(16),
"uint32": np.uint32(32),
"uint64": np.uint64(64),
}
@task
def print_numpy_ints(obj):
print("NumPy Integers:")
for k, v in obj.items():
print(f"{k}: {v} ({type(v)})")
# 5. NumPy scalar types - misc
@task
def get_numpy_misc():
import numpy as np
print(type(np.bool_(False)))
print(np.bool_.__name__)
return {
"bool_": np.bool_(False),
"float16": np.float16(0.125),
"float64": np.float64(3.14159),
"complex64": np.complex64(1 + 2j),
"complex128": np.complex128(3 + 4j),
}
@task
def print_numpy_misc(obj):
print("NumPy Misc Types:")
for k, v in obj.items():
print(f"{k}: {v} ({type(v)})")
# 6. Python datetime types
@task
def get_python_datetime_types():
import datetime
return {
"date": datetime.date(2025, 6, 29),
"datetime": datetime.datetime(2025, 6, 29, 12, 34, 56),
"timedelta": datetime.timedelta(days=1, seconds=3600)
}
@task
def print_python_datetime_types(obj):
print("Python datetime types:")
for k, v in obj.items():
print(f"{k}: {v} ({type(v)})")
# 7. Pendulum datetime
@task
def get_pendulum_datetime_type():
import pendulum
dt = pendulum.datetime(2025, 6, 29, 12, 34, 56, tz="Europe/Paris")
return dt
@task
def print_pendulum_datetime_type(dt):
print("Pendulum DateTime:", dt, type(dt))
# 8. Timezone-aware datetime (ZoneInfo)
@task
def get_timezone_aware():
from zoneinfo import ZoneInfo
from datetime import datetime as dt
return dt(2025, 6, 29, 12, 0, tzinfo=ZoneInfo("America/New_York"))
@task
def print_timezone_aware(tz_dt):
print("Timezone-aware datetime:", tz_dt, type(tz_dt))
# 9. Pendulum timezone object
@task
def get_pendulum_tz():
import pendulum
return pendulum.timezone("Asia/Tokyo")
@task
def print_pendulum_tz(tz):
print("Pendulum timezone:", tz, type(tz))
# 10. ZoneInfo timezone object
@task
def get_zoneinfo_tz():
from zoneinfo import ZoneInfo
return ZoneInfo("America/Toronto")
@task
def print_zoneinfo_tz(tz):
print("ZoneInfo timezone:", tz, type(tz))
# 11. Cohere embeddings (Pydantic model)
@task
def get_embeddings():
import pydantic
from airflow.providers.cohere.hooks.cohere import CohereHook
hook = CohereHook()
embeddings = hook.create_embeddings(["gruyere"])
print("Cohere embeddings type:", type(embeddings))
print("Is Pydantic model?", isinstance(embeddings,
pydantic.BaseModel))
return embeddings
@task
def print_embeddings(obj):
print("Cohere Embeddings (Pydantic Model):", obj)
# DAG chaining
print_pandas(get_pandas())
print_bignum(get_bignum())
print_all_builtins(get_all_builtins())
print_numpy_ints(get_numpy_ints())
print_numpy_misc(get_numpy_misc())
print_python_datetime_types(get_python_datetime_types())
print_pendulum_datetime_type(get_pendulum_datetime_type())
print_timezone_aware(get_timezone_aware())
print_pendulum_tz(get_pendulum_tz())
print_zoneinfo_tz(get_zoneinfo_tz())
print_embeddings(get_embeddings())
pydantic_serde()
```
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