Python：打印一些数据后将数据打印到新行

Question

def printable(l):
    for i in range(len(l)):
        for j in range(len(l[i])):
            print(l[i][j])
        print()
tableData = [['apples', 'oranges', 'cherries', 'banana'],
['Alice', 'Bob', 'Carol', 'David'],
['dogs', 'cats', 'moose', 'goose']]
printable(tableData)

For example if i have a data like

bob,sob,cob,dab 

if i print it using loop then it will be printed one by one what i want is after printing bob and sob i want the cursor come back upwards and then print cob dab

first:print  
      bob  
      sob  
second:then cursor comes back up and print  
      cob  
      dab              
the output i wanted is  
bob cob  
sob dab  

if i remove dab in the above data then the output should be
bob cob
sob
Is this possible in Python? can anyone provide an example

Answer 1

You can do

data = [['apples', 'oranges', 'cherries', 'banana'],
        ['Alice', 'Bob', 'Carol', 'David'],
        ['dogs', 'cats', 'moose', 'goose']]

for row in zip(*data):
    print(' '.join(row))

output

apples Alice dogs
oranges Bob cats
cherries Carol moose
banana David goose

EDIT - expand the answer in case of unequal length: Use itertools.zip_longest()

from itertools import zip_longest
data = [['apples', 'oranges', 'cherries', 'banana'],
['Alice', 'Bob', 'Carol', 'David'],
['dogs', 'cats', 'moose']]

for row in zip_longest(*data, fillvalue=''):
    print(' '.join(row))

output

apples Alice dogs
oranges Bob cats
cherries Carol moose
banana David

The default fillvalue is None - you can keep it if you prefer

Answer 2

Expanding on one of the answers and using your simple list (bob, sob, cob, dab), you can use a modulo based on index position in the single-dimension list, then append '\\n' to create a new line with proper spacing:

data = ['bob','sob','cob','dab']
print(' '.join(['\n{}'.format(i) if data.index(i) % 2 == 0 else i for i in data]))

Output:

bob sob 
cob dab

Answer 3

https://docs.python.org/3/library/functions.html#print

data = ["Mom", "Dad", "Son", "Daughter"]

for person in data:
    print(person, end='\n')

If what I think you're trying to do is just get a statement to print on a new line, the end= parameter must be added into the print statement. It's not required, but it is useful.

If you want to print multiple names on the same line, you can use the separator parameter sep="," to add a comma after each name. The end parameter goes after it to ensure skipping to the next line.