TypeError: list indices must be integers, not tuple, whats wrong [duplicate]

问题

This question already has answers here:

Python 'list indices must be integers, not tuple" error (6 answers)

Closed 3 years ago.

New in Python, help. Why i get this error: "TypeError: list indices must be integers, not tuple,"

imheight = []
for i in range(0,len(tables)):
    for j in range(0,len(tables)):
      hij = computeHeight(imp[i],imp[j],'Meter')
      imheight[i,j] = hij
      imheight[j,i] = hij

回答1:

This syntax is wrong:

imheight[i,j] = hij
imheight[j,i] = hij

Perhaps you meant this?

imheight[i][j] = hij 
imheight[j][i] = hij

But then again, imheight is a one-dimensional list, but you're assuming that it's a two-dimensional matrix. It will only work if you first initialize imheight correctly:

imheight = [[0] * len(tables) for _ in range(len(tables))]

回答2:

A dictionary will get you the assignment behavior you desire:

imheight = {}

But if you later need to iterate over it in some order, this won't be as easy as if you'd done it as a proper list of lists, since dictionaries don't maintain order. However, this may work well enough.

回答3:

Not

imheight[i,j] = hij

It should be written like this:

imheight[i:j] = hij

It means the index from i to j.

来源：https://stackoverflow.com/questions/19780320/typeerror-list-indices-must-be-integers-not-tuple-whats-wrong