Traceback (most recent call last):
File "/home/olli/code/bm/pydantic-settings/tests/foo.py", line 40, in <module>
s = Settings()
^^^^^^^^^^
File "/home/olli/code/bm/pydantic-settings/pydantic_settings/main.py", line 108, in __init__
**__pydantic_self__._settings_build_values(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/olli/code/bm/pydantic-settings/pydantic_settings/main.py", line 215, in _settings_build_values
return deep_update(*reversed([source() for source in sources]))
^^^^^^^^
File "/home/olli/code/bm/pydantic-settings/pydantic_settings/sources.py", line 326, in __call__
field_value = self.prepare_field_value(field_name, field, field_value, value_is_complex)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/olli/code/bm/pydantic-settings/pydantic_settings/sources.py", line 517, in prepare_field_value
env_val_built = self.explode_env_vars(field_name, field, self.env_vars)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/olli/code/bm/pydantic-settings/pydantic_settings/sources.py", line 641, in explode_env_vars
env_var[last_key] = env_val
~~~~~~~^^^^^^^^^^
TypeError: 'str' object does not support item assignment
If you define a nested model with a leaf annotated as a string and have deeper nesting environment variables in place, an exception is raised:
Exception: