Moving from java to python.

Hi,

I have recently been learning python, and coming from a java
background there are many new ways of doing things that I am only just
getting to grips with.

I wondered if anyone could take a look at a few pieces of code I have
written to see if there are any places where I am still using java-
esque techniques, and letting me know the appropriate python way of
doing things.


Here is a node class I wrote for use in graph traversal algorithms:

#====

class Node:
"""
Node models a single piece of connected data.

Author: Peter Braden
Last Modified : Nov. '07
"""

def __init__(self, connections = None, uid = None):
"""
Args:
[connections - a list of (connected node, weight) tuples. ]
[uid - an identifier for comparisons.]
"""
self._connected = []
self._weights = []

if connections:
for i in connections:
self.connected.append(i[0])
self.weights.append(i[1])

if not uid:
self.id = id(self)
else:
self.id = uid

def __eq__(self, other):
return self.id == other.id

def getConnected(self):
return self._connected

def getWeights(self):
return self._weights

def getConnections(self):
connections = []
for i in range(len(connected)):
connections.append((self._connected[i],self._weight[i]))
return connections

connected = property(getConnected, None)
weights = property (getWeights, None)
connections = property(getConnections, None)

def addConnection(self, node, weight = 0):
self.connected.append(node)
self.weights.append(weight)

def removeConnection(self, node):
i = self._connected.index(node)
del self._connected[i]
del self._weights[i]

#===

Cheers,
Peter

.

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