Error with dependancy protobuf

[zach-morris]

I recieve the following error on import of the library using:

import dash_leaflet.express as dlx

With the latest version of protobuf also installed (4.21.0 released May 25, 2022)

The error I receive is:

File   "...my_page.py", line 10, in <module>
import dash_leaflet.express as dlx
File   "/home/.../python3.10/site-packages/dash_leaflet/express.py",   line 1, in <module>
import geobuf
File   "/home/.../python3.10/site-packages/geobuf/__init__.py",   line 1, in <module>
from .encode import Encoder
File   "/home/.../python3.10/site-packages/geobuf/encode.py",   line 9, in <module>
from . import geobuf_pb2
File   "/home/.../python3.10/site-packages/geobuf/geobuf_pb2.py",   line 33, in <module>
_descriptor.EnumValueDescriptor(
File   "/home/.../python3.10/site-packages/google/protobuf/descriptor.py",   line 755, in __new__
_message.Message._CheckCalledFromGeneratedFile()
TypeError: Descriptors cannot not be created   directly.
If   this call came from a _pb2.py file, your generated code is out of date and   must be regenerated with protoc >= 3.19.0.
If   you cannot immediately regenerate your protos, some other possible   workarounds are:
1.   Downgrade the protobuf package to 3.20.x or lower.
2.   Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use   pure-Python parsing and will be much slower).
More information:   https://developers.google.com/protocol-buffers/docs/news/2022-05-06#python-updates

I can confirm the error goes away when downgrading to protobuf 3.20.1

[emilhe]

I have added a strict version spec to requirement.txt