Format nested list python

Question

list=[['name1', 'maths,english'], ['name2', 'maths,science']]

I have a nested list that likes something like this, I am trying to work out how to format it so that the out put would be something like the following:

name1, maths,english
name2, maths,science

I have tried using regex to no avail. How would I go about formatting or manipulating the list output to get something like the above?

Why would regex work? It's for parsing strings, not creating them. — jonrsharpe
– jonrsharpe, Commented Oct 12, 2016 at 20:04

Soviut · Accepted Answer · 2016-10-12 19:57:34Z

5

Iterate over your groups and join the items from each group using a comma.

groups = [['name1', 'maths,english'], ['name2', 'maths,science']]

for group in groups:
    print ', '.join(group)

answered Oct 12, 2016 at 19:57

Soviut

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3 Comments

salezica Over a year ago

Note: unlike the original post, Soviut uses groups as the name for the variable, since list is a standard global function in python. It's usually a good idea to avoid clashes with global names

Iwan. J Over a year ago

The output I'm getting from this is is character on a single line

Iwan. J Over a year ago

I apologise, I fixed my issue above by removing the str() function when getting my output for the list, thanks for the solution greatly appreciated

c24b · Accepted Answer · 2019-06-07 22:15:03Z

0

In Python3 you could use format() as described in PEP 3101


fmt_groups = "\n".join(["{},{}".format(*group) for group in groups])
print(fmt_groups)

answered Jun 7, 2019 at 22:15

c24b

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