2d列表不起作用

Question

I am trying to create a 2D list, and I keep getting the same error "TypeError: list indices must be integers, not tuple" I do not understand why, or how to use a 2D list correctly.

Total = 0
server = xmlrpclib.Server(url);
mainview = server.download_list("", "main")
info = [[]]
info[0,0] = hostname
info[0,1] = time
info[0,2] = complete
info[0,3] = Errors
for t in mainview:
  Total += 1
  print server.d.get_hash(t)
  info[Total, 0] = server.d.get_hash(t)
  info[Total, 1] = server.d.get_name(t)
  info[Total, 2] = server.d.complete(t)
  info[Total, 3] = server.d.message(t)

  if server.d.complete(t) == 1:
    Complete += 1
  else:
    Incomplete += 1
  if (str(server.d.message(t)).__len__() >= 3):
    Error += 1
info[0,2] = Complete
info[0,3] = Error

everything works, except for trying to deal with info.

Answer 1

Your mistake is in accessing the 2D-list, modify:

info[0,0] = hostname
info[0,1] = time
info[0,2] = complete
info[0,3] = Errors

to:

info[0].append(hostname)
info[0].append(time)
info[0].append(complete)
info[0].append(Errors)

Same goes to info[Total, 0] and etc.

Answer 2

The way you created info , it is a list containing only one element, namely an empty list. When working with lists, you have to address the nested items like

info[0][0] = hostname

For initialization, you have to create a list of lists by eg

# create list of lists of 0, size is 10x10
info = [[0]*10 for i in range(10)]

When using numpy arrays, you can address the elements as you did.

One advantage of "lists of lists" is that not all entries of the "2D list" shall have the same data type!

Answer 3

info = [[] for i in range(4)] # create 4 empty lists inside a list
info[0][0].append(hostname)
info[0][1].append(time)
info[0][2].append(complete)
info[0][3].append(Errors)

You need to create the 2d array first.