Module topological_sort

django.utils.topological_sort

Classes

class CyclicDependencyError

Functions

▶ def stable_topological_sort(nodes, dependency_graph)
source link
Reexports
- Imported in django.db.migrations.autodetector.
- Imported in django.forms.widgets.

▶ def topological_sort_as_sets(dependency_graph)

Variation of Kahn's algorithm (1962) that returns sets.

Take a dependency graph as a dictionary of node => dependencies.

Yield sets of items in topological order, where the first set contains
all nodes without dependencies, and each following set contains all
nodes that may depend on the nodes only in the previously yielded sets.