Merge pull request #281 from CJ-Wright/install_docs

add installation docs

Author: martindurant

docs/source/index.rst

@@ -66,6 +66,14 @@ flow of data.  Typically people rely on tools like ``itertools.tee``, and
 However this quickly become cumbersome, especially when building complex
 pipelines.
 
+Installation
+------------
+
+To install either use:
+
+- conda-forge: ``conda install streamz -c conda-forge``
+- pip: ``pip install streamz``
+- dev: ``git clone https://github.com/python-streamz/streamz`` followed by ``pip install -e streamz/``
 
 Related Work
 ------------

streamz/graph.py

@@ -114,7 +114,7 @@ def readable_graph(graph):
     """
     import networkx as nx
 
-    mapping = {k: "{}".format(graph.node[k]["label"]) for k in graph}
+    mapping = {k: "{}".format(graph.nodes[k]["label"]) for k in graph}
     idx_mapping = {}
     for k, v in mapping.items():
         if v in idx_mapping.keys():
@@ -132,7 +132,7 @@ def to_graphviz(graph, **graph_attr):
     import graphviz
 
     gvz = graphviz.Digraph(graph_attr=graph_attr)
-    for node, attrs in graph.node.items():
+    for node, attrs in graph.nodes.items():
         gvz.node(node, **attrs)
     for edge, attrs in graph.edges().items():
         gvz.edge(edge[0], edge[1], **attrs)