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python-graph
Package pygraph :: Package mixins :: Module labeling :: Class labeling

Class labeling

Generic labeling support for graphs

Instance Methods
boolean
__eq__(self, other)
Return whether this graph is equal to another one.
 
__init__(self)
x.__init__(...) initializes x; see help(type(x)) for signature
 
add_edge_attribute(self, edge, attr)
Add attribute to the given edge.
 
add_edge_attributes(self, edge, attrs)
Append a sequence of attributes to the given edge
 
add_node_attribute(self, node, attr)
Add attribute to the given node.
 
del_edge_labeling(self, edge)
 
del_node_labeling(self, node)
list
edge_attributes(self, edge)
Return the attributes of the given edge.
string
edge_label(self, edge)
Get the label of an edge.
number
edge_weight(self, edge)
Get the weight of an edge.
 
get_edge_properties(self, edge)
list
node_attributes(self, node)
Return the attributes of the given node.
 
set_edge_label(self, edge, label)
Set the label of an edge.
 
set_edge_properties(self, edge, **properties)
 
set_edge_weight(self, edge, wt)
Set the weight of an edge.

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables
  WEIGHT_ATTRIBUTE_NAME = 'weight'
  DEFAULT_WEIGHT = 1
  LABEL_ATTRIBUTE_NAME = 'label'
  DEFAULT_LABEL = ''
Properties

Inherited from object: __class__

Method Details

__eq__(self, other)
(Equality operator)

 

Return whether this graph is equal to another one.

Parameters:
  • other (graph, digraph) - Other graph or digraph
Returns: boolean
Whether this graph and the other are equal.

__init__(self)
(Constructor)

 

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__
(inherited documentation)

add_edge_attribute(self, edge, attr)

 

Add attribute to the given edge.

Parameters:
  • edge (edge) - One edge.
  • attr (tuple) - Node attribute specified as a tuple in the form (attribute, value).

add_edge_attributes(self, edge, attrs)

 

Append a sequence of attributes to the given edge

Parameters:
  • edge (edge) - One edge.
  • attrs (tuple) - Node attributes specified as a sequence of tuples in the form (attribute, value).

add_node_attribute(self, node, attr)

 

Add attribute to the given node.

Parameters:
  • node (node) - Node identifier
  • attr (tuple) - Node attribute specified as a tuple in the form (attribute, value).

edge_attributes(self, edge)

 

Return the attributes of the given edge.

Parameters:
  • edge (edge) - One edge.
Returns: list
List of attributes specified tuples in the form (attribute, value).

edge_label(self, edge)

 

Get the label of an edge.

Parameters:
  • edge (edge) - One edge.
Returns: string
Edge label

edge_weight(self, edge)

 

Get the weight of an edge.

Parameters:
  • edge (edge) - One edge.
Returns: number
Edge weight.

node_attributes(self, node)

 

Return the attributes of the given node.

Parameters:
  • node (node) - Node identifier
Returns: list
List of attributes specified tuples in the form (attribute, value).

set_edge_label(self, edge, label)

 

Set the label of an edge.

Parameters:
  • edge (edge) - One edge.
  • label (string) - Edge label.

set_edge_weight(self, edge, wt)

 

Set the weight of an edge.

Parameters:
  • edge (edge) - One edge.
  • wt (number) - Edge weight.

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