join() : to join iterable objects by using delimiter in Python

my_str.join()

Returns a string after joining elements of any iterable object using any delimiter.

We will use list, dictionary, tuple, set string in our examples.

my_list=['Alex','Ronald','John']
output='*'.join(my_list)
print(output) #  Alex*Ronald*John

my_tuple=('Alex','Ronald','John')
output='#'.join(my_tuple)
print(output) #  Alex#Ronald#John

my_set={'Alex','Ronald','John'}
output=' '.join(my_set)
print(output) #  Alex Ronald John

my_dict={'a':'Alex','b':'Ronald','c':'John'}
output='%'.join(my_dict)
print(output) #  a%b%c ( only keys are present ( not values )) 

my_str='plus2net'
output='*'.join(my_str)
print(output)  # p*l*u*s*2*n*e*t

Using Join to get string from a list with integers

By using join() we are creating strings.

my_str='You have to pass in 3 languages'
my_list=my_str.split(' ')
#print(my_list) # ['You','have','to','pass','in','3','languages']
my_str = ' #'.join(my_list) # from list create string
print(my_str)

Here before using join() we can convert all elements to string by using str. We will apply map() to all elements to convert them to string.

my_list=['You','have','to','pass','in',3,'languages']
my_str = ' #'.join(map(str,my_list)) # from list create string
print(my_str)

This will generate error as we can directly use join() with integers .

my_list=['You','have','to','pass','in',3,'languages']
my_str = ' #'.join(my_list) # from list create string
print(my_str)

TypeError: sequence item 5: expected str instance, int found
All String methods

istitle() capitalize() Python- Tutorials

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

About the author Watch on YouTube

Connect:

Subscribe to our YouTube Channel here

join(): Joining string

Using Join to get string from a list with integers

Subhendu Mohapatra