init() — flask Function Reference

Architecture documentation for the __init__() function in debughelpers.py from the flask codebase.

Function python ApplicationCore Scaffolding

Entity Profile

ApplicationCore→ Scaffolding→ __init__() — flask Function Reference

Dependency Diagram

graph TD
  424bc3d6_eeae_69f7_4e49_a706459331b9["__init__()"]
  d56895f5_6c15_d2ad_7f1e_3947e7f27a10["DebugFilesKeyError"]
  424bc3d6_eeae_69f7_4e49_a706459331b9 -->|defined in| d56895f5_6c15_d2ad_7f1e_3947e7f27a10
  style 424bc3d6_eeae_69f7_4e49_a706459331b9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/flask/debughelpers.py lines 28–44

    def __init__(self, request: Request, key: str) -> None:
        form_matches = request.form.getlist(key)
        buf = [
            f"You tried to access the file {key!r} in the request.files"
            " dictionary but it does not exist. The mimetype for the"
            f" request is {request.mimetype!r} instead of"
            " 'multipart/form-data' which means that no file contents"
            " were transmitted. To fix this error you should provide"
            ' enctype="multipart/form-data" in your form.'
        ]
        if form_matches:
            names = ", ".join(repr(x) for x in form_matches)
            buf.append(
                "\n\nThe browser instead transmitted some file names. "
                f"This was submitted: {names}"
            )
        self.msg = "".join(buf)