cleanup and fixed link redirects

pyvis/_version.py

@@ -1 +1 @@
-__version__ = '0.1.8.2' # bump version
+__version__ = '0.1.9' # bump version

pyvis/network.py

@@ -65,6 +65,7 @@ def __init__(self,
         self.options = Options(layout)
         self.widget = False
         self.node_ids = []
+        self.node_map = {}
         self.template = None
         self.conf = False
         self.path = os.path.dirname(__file__) + "/templates/template.html"
@@ -212,6 +213,7 @@ def add_node(self, n_id, label=None, shape="dot", **options):
             n = Node(n_id, shape, label=node_label, font_color=self.font_color, **options)
             self.nodes.append(n.options)
             self.node_ids.append(n_id)
+            self.node_map[n_id] = n.options
 
     def add_nodes(self, nodes, **kwargs):
         """
@@ -628,6 +630,16 @@ def get_nodes(self):
         """
         return self.node_ids
 
+    def get_node(self, n_id):
+        """
+        Lookup node by ID and return it.
+        
+        :param n_id: The ID given to the node.
+        
+        :returns: dict containing node properties
+        """
+        return self.node_map[n_id]
+
     def get_edges(self):
         """
         This method returns an iterable list of edge objects

pyvis/source/tutorial.rst

@@ -50,6 +50,15 @@ For the direct Python translation of these attributes, reference the
    work as expected, or at all. Pyvis can translate into the JavaScript
    elements for VisJS_ but after that it's up to VisJS_!
 
+Indexing a Node
+---------------
+Use the :meth:`get_node` method to index a node by its ID:
+
+>>> net.add_nodes(["a", "b", "c"])
+>>> net.get_node("c")
+>>> {'id': 'c', 'label': 'c', 'shape': 'dot'}
+
+
 Adding list of nodes with properties
 ------------------------------------
 When using the :meth:`network.Network.add_nodes` method optional keyword arguments can be