在 pep8 之后调试 ipython 什么也没返回，但我仍然有语法错误

Question

在我的previous post 收到来自 phihag 的所需帮助后，我注意到我没有得到所有偶数的结果。但是，我在第 47 行不断收到语法错误，使用 else 无效语法。

else:  # x, y, and z are even

可能是什么问题？

#!/usr/bin/env python
# This program exmamines variables x, y, and z
# and prints the largest odd number among them

import sys

x, y, z = map(int, sys.argv[1:4])

if x % 2 != 0:
    if y % 2 != 0:
        if z % 2 != 0:
            if x > y and x > z:  # x is the biggest odd
                print 'x is the biggest odd ', x
            elif y > z and y > x:  # y is the biggest odd
                print 'y is the biggest odd ', y
            elif z > x and z > y:  # z is the biggest odd
                print 'z is the biggest odd ', z

        else:  # z is even
            if x > y:  # x is the biggest odd
                print 'x is the biggest odd ', x
            else:  # y is the biggest odd
                print 'y is the biggest odd ', y

    else:  # y is even
        if z % 2 != 0:  # z is odd
            if x > z:  # x is the biggest odd
                print 'x is the biggest odd ', x
            else:  # z is the biggest odd
                print 'z is the biggest odd ', z
        else:  # y,z are even and x is the biggest odd
            print 'x is the biggest odd ', x

else:  # x is even
    if y % 2 != 0 and z % 2 != 0:  # y,z is odd
        if y > z:  # y is the biggest odd
            print 'y is the biggest odd ', y
        else:  # z is the biggest odd
            print 'z is the biggest odd ', z
    else:  # x and y are even
        if z % 2 != 0:  # z is the biggest odd
            print 'z is the biggest odd ', z
        else:  # x and z are even
            if y % 2 != 0:  # y is odd
                if z % 2 == 0:  # z is even
                    print 'y is the biggest odd ', y
    else:  # x, y, and z are even
        if z % 2 == 0:
            print 'x, y, and z are even.'

print 'finished'

Answer 1

您有两个elses 在同一缩进级别，一个接一个，这是无效的。你的意思是让其中一个成为elif？