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我正在尝试将元组列表写入 txt 文件并将其与左侧对齐。（需要用制表符分隔）这是元组列表：

list1 = [(1, "Banana", "Yellow"), (2 , "Apple", "Red"), (3, "Carrot", "Orange")]

这是我写的代码：

def write_fruit(list1,new_file):
if not isinstance(list1, list):
    raise ValueError("First input must be a list.")
header = "Num Fruit Color"
with open(new_file, "w") as output:
    output.write(header + "\n")
    for line in list1:
        if not isinstance(line[1], str):
            raise ValueError("Second input must be a str.")
        vals = " ".join(str(i) for i in line)
        output.write(vals + "\n")
print(write_fruit(fruit_list, "fruit_list.txt"))

我的 txt 文件如下所示：

Num  Fruit  Color
 1  Banana    Yellow
 2 …