CODEWITHSUNDEEP
pythonpython-3.3
Abhirup Ghosh
Abhirup Ghosh

Reputation: 29

Converting an integer list into a string list

I am new to Python. I need to know how to convert a list of integers to a list of strings. So,

>>>list=[1,2,3,4]

I want to convert that list to this:

>>>print (list)
['1','2','3','4']

Also, can I add a list of strings to make it look something like this?

1234

Upvotes: 0

Views: 1836

Answers (4)

placeybordeaux
placeybordeaux

Reputation: 2216

l = map(str,l)

will work, but may not make sense if you don't know what map is

l = [str(x) for x in l]

May make more sense at this time.

''.join(["1","2","3"]) == "123"

Upvotes: 0

dansalmo
dansalmo

Reputation: 11686

Using print:

>>> mylist = [1,2,3,4]
>>> print ('{}'*len(mylist)).format(*mylist)
1234

Upvotes: 0

Rohit Jain
Rohit Jain

Reputation: 213253

You can use List Comprehension:

>>> my_list = [1, 2, 3, 4]
>>> [str(v) for v in my_list]
['1', '2', '3', '4']

or map():

>>> str_list = map(str, my_list)
>>> str_list
['1', '2', '3', '4']

In Python 3, you would need to use - list(map(str, my_list))

For 2nd part, you can use join():

>>> ''.join(str_list)
'1234'

And please don't name your list list. It shadows the built-in list.

Upvotes: 8

Brian Cain
Brian Cain

Reputation: 14619

>>>l=[1,2,3,4]

I've modified your example to not use the name list -- it shadows the actual builtin list, which will cause mysterious failures.

Here's how you make it into a list of strings:

l = [str(n) for n in l]

And here's how you make them all abut one another:

all_together = ''.join(l)

Upvotes: 2

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