def _add_stops_to_net(net, stops):
for stop in stops.itertuples():<EOL><INDENT>data = {<EOL>"<STR_LIT>": stop.lat,<EOL>"<STR_LIT>": stop.lon,<EOL>"<STR_LIT:name>": stop.name<EOL>}<EOL>net.add_node(stop.stop_I, data)<EOL><DEDENT>
Add nodes to the network from the pandas dataframe describing (a part of the) stops table in the GTFS database.

Parameters
----------
net: networkx.Graph
stops: pandas.DataFrame