`flask.Blueprint`¶

class flask.Blueprint(name, import_name, static_folder=None, static_url_path=None, template_folder=None, url_prefix=None, subdomain=None, url_defaults=None, root_path=None)[source]¶: Represents a blueprint. A blueprint is an object that records functions that will be called with the BlueprintSetupState later to register functions or other things on the main application. See Modular Applications with Blueprints for more information.

New in version 0.7.

Methods¶

`__init__`(name, import_name[, static_folder, ...])
`add_app_template_filter`(f[, name])	Register a custom template filter, available application wide.
`add_app_template_global`(f[, name])	Register a custom template global, available application wide.
`add_app_template_test`(f[, name])	Register a custom template test, available application wide.
`add_url_rule`(rule[, endpoint, view_func])	Like `Flask.add_url_rule()` but for a blueprint.
`after_app_request`(f)	Like `Flask.after_request()` but for a blueprint.
`after_request`(f)	Like `Flask.after_request()` but for a blueprint.
`app_context_processor`(f)	Like `Flask.context_processor()` but for a blueprint.
`app_errorhandler`(code)	Like `Flask.errorhandler()` but for a blueprint.
`app_template_filter`([name])	Register a custom template filter, available application wide.
`app_template_global`([name])	Register a custom template global, available application wide.
`app_template_test`([name])	Register a custom template test, available application wide.
`app_url_defaults`(f)	Same as `url_defaults()` but application wide.
`app_url_value_preprocessor`(f)	Same as `url_value_preprocessor()` but application wide.
`before_app_first_request`(f)	Like `Flask.before_first_request()`.
`before_app_request`(f)	Like `Flask.before_request()`.
`before_request`(f)	Like `Flask.before_request()` but for a blueprint.
`context_processor`(f)	Like `Flask.context_processor()` but for a blueprint.
`endpoint`(endpoint)	Like `Flask.endpoint()` but for a blueprint.
`errorhandler`(code_or_exception)	Registers an error handler that becomes active for this blueprint only.
`get_send_file_max_age`(filename)	Provides default cache_timeout for the `send_file()` functions.
`make_setup_state`(app, options[, ...])	Creates an instance of `BlueprintSetupState()` object that is later passed to the register callback functions.
`open_resource`(resource[, mode])	Opens a resource from the application’s resource folder.
`record`(func)	Registers a function that is called when the blueprint is registered on the application.
`record_once`(func)	Works like `record()` but wraps the function in another function that will ensure the function is only called once.
`register`(app, options[, first_registration])	Called by `Flask.register_blueprint()` to register a blueprint on the application.
`register_error_handler`(code_or_exception, f)	Non-decorator version of the `errorhandler()` error attach function, akin to the `register_error_handler()` application-wide function of the `Flask` object but for error handlers limited to this blueprint.
`route`(rule, **options)	Like `Flask.route()` but for a blueprint.
`send_static_file`(filename)	Function used internally to send static files from the static folder to the browser.
`teardown_app_request`(f)	Like `Flask.teardown_request()` but for a blueprint.
`teardown_request`(f)	Like `Flask.teardown_request()` but for a blueprint.
`url_defaults`(f)	Callback function for URL defaults for this blueprint.
`url_value_preprocessor`(f)	Registers a function as URL value preprocessor for this blueprint.

Attributes¶

`has_static_folder`	This is `True` if the package bound object’s container has a folder for static files.
`jinja_loader`	The Jinja loader for this package bound object.
`static_folder`	The absolute path to the configured static folder.
`static_url_path`
`warn_on_modifications`