在python中嵌套循环中的漂亮打印输出

Question

I have a nested loop like so:

for a in b.keys():
    for c in b[a]:
        out = '%-30s %s' % (c, a)
        space = out.count(' ')
        split = space * '-'
        print '\t%-30s %s  %-10s' % (c, split, a)

So the result is:

test1         ------- something1
test23sdfsf   ----- dsffdgdgfddfsdf

But what I want is:

test1 -------------- something1
test23sdfsf -------- dsffdgdgfddfsdf

Answer 1

If you want to use a maxwidth of 30 , do the following:

for a in b.keys():
    for c in b[a]:
        print("%s %s" % (c.ljust(30, '-'), a))

Answer 2

How about using the following:

Test: {0:15} Something {1}".format(Variable,AnotherVar)

You can calculate the numbers based on the length.

Adding more example:

>>> a="test"
>>> b="another_one"
>>> "A: {0:20} B {1}".format(a,b) 'A: test                 B another_one'
>>> "A: {0:15} B {1}".format(a,b) 'A: test            B another_one'
>>> "A: {0:4} B {1}".format(a,b) 'A: test B another_one'

You can also use a variable for the second number in the first {} based on the length of strings you want to print.

Answer 3

You can see the same example for my solution in nested arguments and complex examples

for a in b.keys():
    for c in b[a]:
        print '{key:{fill}{align}20} {item}'.format(key=key + ' ', fill='-', align='<', item=b[key])