Hi ALL,
I am having a issue with a particular storage of data problem and
wanted to know if I am going about it the wrong way.
I have a list of reference numbers associated with a product and I have
a socket that listens on a port. Now what happens is the client app
connects to the server - sends the product and the associated ref
numbers (there are a few per product). I need to be able to store these
in a data structure so that when the same product is called again -
it can display the ref numbers for that product.
I am new to OO programming - so please have mercy ;)
eg:
class ProductData:
def __init__(self,prod):
self.prod = prod
self.ref = []
def add_ref(self,refno):
self.ref.append(refno)
def __str__(self):
return "%s : %s" % (self.prod,",".join(self.ref))
products = ['table', 'chair', 'couch']
ref_numbers = ['1234','4567', '7890']
detail = {}
id = 0
for p in products:
detail[id] = ProductData(p)
for r in ref_numbers:
detail[id].add_ref(r)
id = id + 1
for a in detail:
print detail[a]
so I will get:
table : 1234,4567,7890
chair : 1234,4567,7890
couch : 1234,4567,7890
BUT I will need to be able to have this in a while loop - as there is a
socket listener there.
I keep getting this error:
for a in Detail:
RuntimeError: dictionary changed size during iteration
any ideas ?
Thanks
Tonino
what I want to be able to get is a dict of the products and associated
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