blueprint() — flask Function Reference

Architecture documentation for the blueprint() function in wrappers.py from the flask codebase.

Function python ApplicationCore Scaffolding called by 1

Entity Profile

ApplicationCore→ Scaffolding→ blueprint() — flask Function Reference

Dependency Diagram

graph TD
  53d45141_828e_ea9a_7cbc_ddf952818e95["blueprint()"]
  eae007fa_ef39_ed97_113d_df4ad5001c0e["Request"]
  53d45141_828e_ea9a_7cbc_ddf952818e95 -->|defined in| eae007fa_ef39_ed97_113d_df4ad5001c0e
  cd857c6c_da43_da88_26ed_c88b074b880a["preprocess_request()"]
  cd857c6c_da43_da88_26ed_c88b074b880a -->|calls| 53d45141_828e_ea9a_7cbc_ddf952818e95
  style 53d45141_828e_ea9a_7cbc_ddf952818e95 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/flask/wrappers.py lines 162–178

    def blueprint(self) -> str | None:
        """The registered name of the current blueprint.

        This will be ``None`` if the endpoint is not part of a
        blueprint, or if URL matching failed or has not been performed
        yet.

        This does not necessarily match the name the blueprint was
        created with. It may have been nested, or registered with a
        different name.
        """
        endpoint = self.endpoint

        if endpoint is not None and "." in endpoint:
            return endpoint.rpartition(".")[0]

        return None