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extend networkx

Abierto
#188 5 comentarios 1 reacción 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
25/100
Tipo de issue
Nueva funcionalidad
Claridad
Necesita aclaración
Estado de actividad
Estancado
Stack tecnológico
python
Área
stream-processing

Línea de trabajo

Start with the issue's two use cases and the proposed networkx DiGraph overrides: add_node, add_edge, and add_edge_from. Determine how streamz graphs are currently represented and how NetworkX compose and predecessor inspection should behave. Done means modular graphs can be composed while preserving intended node connections and exposing unmatched names for inspection.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

Networkx provides many great tools for inspection, analysis, and manipulation of graphs. It might be nice to be able to use these tools when working with streamz.

Use Cases:
UC1:

  1. User1 writes a graph (graph1) to perform some analysis
  2. User2 would like to extend this analysis so they write a new pipeline (graph2) with dummy parent nodes with the same name as the nodes from graph1.
  3. User2 then uses graph3 = nx.compose(graph2, graph1). Graph3 has nodes from both graphs allowing the graphs themselves to be built modularly.

UC2:

  1. User3 suspects something went wrong in the compose step because of a name mismatch. User3 uses [f for f in graph3 if nx.predecessors(f) ==0] to find all the nodes with no parents. User3 then looks through the list and finds a node who's name didn't match and thus was not linked properly.

I think this can be done via a subclass of nx.DiGraph with select methods overridden, namely:

  1. add_node which now needs to take in a node class, args and kwargs and a name
  2. add_edge which now need to take in either
    1. two node classes with args and kwargs (producing two new nodes)
    2. a node class with args and kwargs and a name
    3. two names
  3. add_edge_from so compose works properly.

Most of the overrides either need to init new nodes or provide connections between nodes.

Lenguaje dominante
Python
Estrellas
1.3k
Forks
149
Merge medio
17 h 39 min
PR fusionados (30 d)
1

Guía de contribución

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Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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