Road to 4.0 part 1

[rochacbruno]

NO BREAKING CHANGE

Basically, this makes #677 obsolete and now allows this form of schema.

class Settings(Dynaconf):
    bar = "zaz"
    banana: str  # must break, no default value
    apple: str = Field(default_expr="env.APPLE | upper")
    colors: List[str]
    meh: int = None
    server: str = "myserver"
    hdf = "33"

    class SchemaConfig:
        extra_fields_policy = ExtraFields.allow
        validation_mode = SchemaValidationMode.eager
        envvar_prefix = "MYPROGRAM"
        settings_file = "settings.yaml"

settings = Settings(foo="bar")

BREAKING CHANGE

The following mode is now removed!

from dynaconf import settings

Must use

from dynaconf import Dynaconf

# Subclass and configure
class Settings(Dynaconf):
    field: type = Field(...)
    ...
    class SchemaConfig:
        ...

# or use defaults
settings = Dynaconf(**options)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[rochacbruno]

This is going to be refactored

[phitoduck]

Very excited for v4!