new_timer(self, interval=None, callbacks=None)

This is useful for getting periodic events through the backend's native event loop. Implemented only for backends with GUIs.

Parameters

interval : int

Timer interval in milliseconds.

callbacks : list[tuple[callable, tuple, dict]]

Sequence of (func, args, kwargs) where func(*args, **kwargs) will be executed by the timer every interval.

Callbacks which return False or 0 will be removed from the timer.

Create a new backend-specific subclass of :None:None:`.Timer`.

Examples

This example is valid syntax, but raise an exception at execution

>>> timer = fig.canvas.new_timer(callbacks=[(f1, (1,), {'a': 3})])

See :

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them

---

File: /matplotlib/backend_bases.py#2462
type: <class 'function'>
Commit: