如何删除python3中每行末尾的额外尾随空格

        0
      0 1 0
    0 1 2 1 0
  0 1 2 3 2 1 0
    0 1 2 1 0
      0 1 0
        0

数值方法

limit = int(input())
space = '  '
for i in range(0, limit + 1):
    print(space * (limit - i), end='')

    for j in range(2 * i + 1):
        if j > i:
            print(i - (j - i), end=' ')
        else:
            print(j, end=" ")
    print()


for i in range(0, limit)[::-1]:
    print(space * (limit - i), end='')

    for j in range(2 * i + 1)[::-1]:

        if j > i:
            print(i - (j - i), end=' ')
        else:
            print(j, end=" ")
    print()

gap = '  '
y = int(input())
y = y + 1
for n in range(1, y + 1):
    str1 = ' '.join(str(e) for e in list(range(n)))
    str2 = ' '.join(str(e) for e in list(range(n - 1))[::-1])
    print(gap * (y - n) + str1 + " " + str2.strip())

for n in range(1, y)[::-1]:
    str1 = ' '.join(str(e) for e in list(range(n)))
    str2 = ' '.join(str(e) for e in list(range(n - 1))[::-1])
    print(gap * (y - n) + str1 + " " + str2.strip())

图案打印正确,但当我提交给在线评判时,它不接受。

wrong answer 1st lines differ - expected: '    0', found: '    0 '

在这两个代码段中,我无法删除最后一行多余的空格。