from_mapping() — flask Function Reference

Architecture documentation for the from_mapping() function in config.py from the flask codebase.

Function python ApplicationCore Scaffolding called by 1

Entity Profile

ApplicationCore→ Scaffolding→ from_mapping() — flask Function Reference

Dependency Diagram

graph TD
  78c05fd2_59f8_47ae_0cf0_811efaed6c49["from_mapping()"]
  1e067a59_9e9f_8edb_0434_65b5c5690e36["Config"]
  78c05fd2_59f8_47ae_0cf0_811efaed6c49 -->|defined in| 1e067a59_9e9f_8edb_0434_65b5c5690e36
  55ea84cc_e473_fddf_9541_660cc445cb55["from_file()"]
  55ea84cc_e473_fddf_9541_660cc445cb55 -->|calls| 78c05fd2_59f8_47ae_0cf0_811efaed6c49
  style 78c05fd2_59f8_47ae_0cf0_811efaed6c49 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/flask/config.py lines 304–321

    def from_mapping(
        self, mapping: t.Mapping[str, t.Any] | None = None, **kwargs: t.Any
    ) -> bool:
        """Updates the config like :meth:`update` ignoring items with
        non-upper keys.

        :return: Always returns ``True``.

        .. versionadded:: 0.11
        """
        mappings: dict[str, t.Any] = {}
        if mapping is not None:
            mappings.update(mapping)
        mappings.update(kwargs)
        for key, value in mappings.items():
            if key.isupper():
                self[key] = value
        return True