check() — flask Function Reference

Architecture documentation for the check() function in tag.py from the flask codebase.

Function python DataHandling JsonProvider

Entity Profile

DataHandling→ JsonProvider→ check() — flask Function Reference

Dependency Diagram

graph TD
  0c7c2db6_8b2b_9460_6579_8bc88612c134["check()"]
  23ab0d6d_1974_f1de_8d96_ad5fc53532ab["TagDict"]
  0c7c2db6_8b2b_9460_6579_8bc88612c134 -->|defined in| 23ab0d6d_1974_f1de_8d96_ad5fc53532ab
  style 0c7c2db6_8b2b_9460_6579_8bc88612c134 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/flask/json/tag.py lines 103–108

    def check(self, value: t.Any) -> bool:
        return (
            isinstance(value, dict)
            and len(value) == 1
            and next(iter(value)) in self.serializer.tags
        )