均匀地打印2个均匀填充的列表

时间:2014-12-27 02:45:09

标签: python string list formatting rows

我使用以下代码生成2个列表,nameList和gradeList。

nameList[]        
gradeList[]
for row in soup.find_all('tr'):
        name = row.select('th strong')
        grade = row.select('td label')
        if grade and name:
            if "/" in grade[0].text:
                gradeList.append(grade[0].text)
                nameShort = re.sub(r'^(.{20}).*$', '\g<1>...', str(name[0].text))
                nameList.append(nameShort)

制作类似:

的内容
nameList = [“grade 1”,”grade 2222222222”,”grade 3”]
gradeList = [“1/1”,”2/2”,”100000/100000”]

我希望程序能够并排打印2个干净列中的列表。在每列中,我希望数据对齐到左侧。列表(没有失败)将始终均匀填充。第一列(nameList)永远不会超过25个字符。我正在寻找的内容类似于以下内容:

        Assignment          Grade
0       grade 1             1/1
1       grade 2222222222    2/2
2       grade 3             100000/100000

我已经尝试过使用熊猫并且它有效,但格式化很奇怪且不合适。它不会像我想要的那样对齐左边。我相信这是因为两个列表中的数据都有不同的字符长度(如上所示)。

3 个答案:

答案 0 :(得分:10)

使用str.format

nameList = ["grade 1", "grade 2222222222", "grade 3"]
gradeList = ["1/1", "2/2", "100000/100000"]

fmt = '{:<8}{:<20}{}'

print(fmt.format('', 'Assignment', 'Grade'))
for i, (name, grade) in enumerate(zip(nameList, gradeList)):
    print(fmt.format(i, name, grade))

输出:

        Assignment          Grade
0       grade 1             1/1
1       grade 2222222222    2/2
2       grade 3             100000/100000

或者,您也可以使用printf style formatting using % operator

fmt = '%-8s%-20s%s'

print(fmt % ('', 'Assignment', 'Grade'))
for i, (name, grade) in enumerate(zip(nameList, gradeList)):
    print(fmt % (i, name, grade))

答案 1 :(得分:5)

给出两个列表

nameList = ['grade 1','grade 2222222222','grade 3']
gradeList = ['1/1','2/2','100000/100000']

制表符分隔格式。使用zip()两个同时遍历两个列表

print 'Assignment \t\tGrade' 
for n,g in zip(nameList,gradeList):
    print n + '\t\t\t' + g


Assignment         Grade
grade 1            1/1
grade 2222222222   2/2
grade 3            100000/100000

答案 2 :(得分:0)

您可以使用F字符串,我认为它变得更加清晰:

nameList = ["grade 1", "grade 2222222222", "grade 3"]
gradeList = ["1/1", "2/2", "100000/100000"]

# Table header
print(f'{"":<8} {"Assignment":<20} {"Grade":<20}')

# Table content
for i, (name, grade) in enumerate(zip(nameList, gradeList)):
    print(f'{i:<8} {name:<20} {grade:<20}')

结果:

         Assignment           Grade               
0        grade 1              1/1                 
1        grade 2222222222     2/2                 
2        grade 3              100000/100000