python - 'tuple' 对象不支持项目分配 & NameError:name

Question

代码

import re
letters = ["x","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P"]

def coordSplit(coord):
        splitCoord=[]
        match = re.match(r"([A-Z]+)([0-9]+)", coord, re.I)
        if match:
            splitCoord = match.groups()
        count=0
        for letter in letters:
            if splitCoord[0] == letter:
                print(splitCoord[0])
                splitCoord[1] = str(count) #it can not change this value to a number NameError: name xxx is not defined
            count = count + 1
        return splitCoord

location = "H6"
coordSplit(location)

我一直把它放在一起，我不断收到错误“NameError：名称 splitCoord 未定义”和“'tuple' 对象不支持项目分配”谁能帮忙

标签： python

Answer 1

这一行：

splitCoord = match.groups()

返回一个元组。根据文档

因此这一行：

splitCoord[1] = str(count)

将不起作用，因为元组是不可变的。

采用：

splitCoord = list(match.groups())