How does HasField works in Python bindings for protobuf

[Robert Kuska]

Consider following code:

message Fly{

 uint32 dtime = 1;

}

>>> d.ListFields()[0][0].name

'dtime'

>>> d.ListFields()[0][0].full_name

'Fly.dtime

>>> 

>>> d.HasField('dtime')

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/home/rkuska/.local/lib/python2.7/site-packages/google/protobuf/internal/python_message.py", line 825, in HasField

    raise ValueError(error_msg % field_name)

ValueError: Protocol message has no non-repeated submessage field "dtime_utc"

>>> d.HasField('Fly.dtime')

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/home/rkuska/.local/lib/python2.7/site-packages/google/protobuf/internal/python_message.py", line 825, in HasField

    raise ValueError(error_msg % field_name)

ValueError: Protocol message has no non-repeated submessage field "Flight.dtime_utc"

What does HasField expect as a parameter?

[Jie Luo]

If you are using proto3, HasField is not supported for primitive types.

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