Differences between Print Concatenations

Make_string_joining_lowercase.py

# Homework 9.3: Make String joining Lowercase

str_one = "Today Is a Beautiful Day vs" # i didn't added space, see the result spaces between words
str_two = "Today is a terrible Day"

print(str_one.lower() + str_two.lower())  # no space added
print(str_one.lower() + " " + str_two.lower())   # space add a virgula faz um espaço
print("%s %s" % (str_one.lower(), str_two.lower()))    # space add
print("{0} {1}".format(str_one.lower(), str_two.lower()))     # space add

# The preferred options are using the .format() method or using f-strings below:

print("{first} {second_str}".format(first=str_one.lower(), second_str=str_two.lower()))    # space add

# The newest way of formatting strings is called f-string and it looks like this:

print(f"{str_one.lower()} {str_two.lower()}")