CODEWITHSUNDEEP
python
user2592659
user2592659

Reputation: 11

Creating multiple list from loops

I want to make multiple lists with my for loops, My code is:

  for port in portlist1:
    print port.getname(),port.getsize()
    for register in port.getregisters():
        j=j+1
    print j
    j=0

Output is:

  B 10
  1
  C 15
  1
  F 30
  1

I want to make list every time:

List1=[[B,10],1]
List2=[[C,15],1]
List3=[[F,30],1]

Can someone help me here?

Upvotes: 0

Views: 125

Answers (3)

b0bz
b0bz

Reputation: 2200

It's a bad idea to make a new list each time, you should just go with nesting each list. If the amount of ports is static, you can use vars()['listX'].. But still not really recomended. You should go with the answer given by kroolik or alecxe

But if you REALLY need someting like..:

List1=[[B,10],1]
List2=[[C,15],1]
List3=[[F,30],1]

You can use:

lname = "list"
for i,p in enumerate(portlist1):
    j = len(p.getregisters())
    vars()[lname+str(i)] = [(p.getname(),p.getsize()), j]

print list0
print list1
print list2

Upvotes: 1

alecxe
alecxe

Reputation: 473763

It's not clear what was the value of j before the loop, but it looks like you are using it to measure the length of port.getregisters(). Try this one-liner:

result = [[[port.getname(), port.getsize()], len(port.getregisters())] for port in portlist1]

Upvotes: 2

Maciej Gol
Maciej Gol

Reputation: 15854

lists = []
for port in portlist1:
    l = [[port.getname(), port.getsize()]]
    for register in port.getregisters():
        j=j+1
    l.append(j)
    lists.append(l)
    j=0

Upvotes: 2

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