cannot install Synapse on fedora minimal v43 with Python v3.14 - Pydantic v1 errors #19130
Description
Description
Performing install in docker container on fedora minimal v43. Ive tried forcing updrages, removing pydantc v1. This is a brand new clean install. Ive searched and can't seem to find anyone else seeing these messages.:
/usr/local/lib64/python3.14/site-packages/synapse/_pydantic_compat.py:36: UserWarning: Core Pydantic V1 functionality isn't compatible with Python 3.14 or greater.
from pydantic.v1 import (
Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "/usr/local/lib64/python3.14/site-packages/synapse/app/homeserver.py", line 33, in
from synapse.api.urls import (
...<7 lines>...
)
File "/usr/local/lib64/python3.14/site-packages/synapse/api/urls.py", line 31, in
from synapse.config.homeserver import HomeServerConfig
File "/usr/local/lib64/python3.14/site-packages/synapse/config/homeserver.py", line 40, in
from .mas import MasConfig
File "/usr/local/lib64/python3.14/site-packages/synapse/config/mas.py", line 34, in
class MasConfigModel(ParseModel):
...<21 lines>...
return v
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/main.py", line 221, in new
inferred = ModelField.infer(
name=var_name,
...<3 lines>...
config=config,
)
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 504, in infer
return cls(
name=name,
...<7 lines>...
field_info=field_info,
)
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 434, in init
self.prepare()
~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 544, in prepare
self._set_default_and_type()
~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 576, in set_default_and_type
raise errors.ConfigError(f'unable to infer type for attribute "{self.name}"')
pydantic.v1.errors.ConfigError: unable to infer type for attribute "secret"
Steps to reproduce
- list the steps
- that reproduce the bug
- using hyphens as bullet points
Homeserver
another local homeserver
Synapse Version
1.140+
Installation Method
Docker (matrixdotorg/synapse)
Database
a single postgres v17.6
Workers
Single process
Platform
Fedora minimal v43 container within Docker desktop
Configuration
No response
Relevant log output
/usr/local/lib64/python3.14/site-packages/synapse/_pydantic_compat.py:36: UserWarning: Core Pydantic V1 functionality isn't compatible with Python 3.14 or greater.
from pydantic.v1 import (
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/usr/local/lib64/python3.14/site-packages/synapse/app/homeserver.py", line 33, in <module>
from synapse.api.urls import (
...<7 lines>...
)
File "/usr/local/lib64/python3.14/site-packages/synapse/api/urls.py", line 31, in <module>
from synapse.config.homeserver import HomeServerConfig
File "/usr/local/lib64/python3.14/site-packages/synapse/config/homeserver.py", line 40, in <module>
from .mas import MasConfig
File "/usr/local/lib64/python3.14/site-packages/synapse/config/mas.py", line 34, in <module>
class MasConfigModel(ParseModel):
...<21 lines>...
return v
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/main.py", line 221, in __new__
inferred = ModelField.infer(
name=var_name,
...<3 lines>...
config=config,
)
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 504, in infer
return cls(
name=name,
...<7 lines>...
field_info=field_info,
)
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 434, in __init__
self.prepare()
~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 544, in prepare
self._set_default_and_type()
~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/pydantic/v1/fields.py", line 576, in _set_default_and_type
raise errors_.ConfigError(f'unable to infer type for attribute "{self.name}"')
pydantic.v1.errors.ConfigError: unable to infer type for attribute "secret"Anything else that would be useful to know?
No response