Python3 ValueError - 遍历列表时要解压的值太多

Question

这是一个简单的代码，旨在使用英语名字和姓氏列表生成全名列表：

names = """
Walter
Dave
Albert""".split()

fullnames = [(first + last) for first, last in names]
print(fullnames)

为了这个 post，我把 names 变小了，但我包含了 100 个名字。

输出：

Traceback (most recent call last):
  File "/home/pussyslayer42069/Desktop/py/names.py", line 105, in <module>
    fullnames = [(first + last) for first, last in names]
  File "/home/pussyslayer42069/Desktop/py/names.py", line 105, in <listcomp>
    fullnames = [(first + last) for first, last in names]
ValueError: too many values to unpack (expected 2)

Answer 1

使用zip并遍历列表的两个部分

[(f, l) for f, l in zip(names[:-1], names[1:]]

Answer 2

如果我找到你，这就是解决方案；

names = """
Walter
Dave
Albert""".split()


fullnames = [(names[i] + ' ' + names[i + 1]) for i in range(len(names) - 1)]
print(fullnames)

Python3 ValueError - 遍历列表时要解压的值太多

Python3 ValueError - Too many values to unpack while iterating over a list

python

python-3.x

valueerror

list-manipulation