Split a String and Join

For a given a string, split the string on a ” ” (space) delimiter and join using a – hyphen

String split() method

The split() method splits a string into a list of strings.

Read here about Strings in Python, Operations & methods
You can specify the separator, the default separator is any whitespace.
Also, multiple spaces do not matter, they are treated as a single space.

String join() method

The join() method takes all items in an iterable and joins them into one string.

A string must be specified as the separator.

Solution

my_str = input('Enter text: ')
my_str = my_str.split()
my_str = '-'.join(my_str)
print(my_str)

//
Enter text: welcome to webpedia
welcome-to-webpedia