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Python Python Basics (2015) Python Data Types Use .split() and .join()

david greene
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david greene
Python Web Development Techdegree Student 307 Points

don't understand the .format function

I really cant grasp this one?????

the last command is puzzling me

also line 3 - what goes into the {}

banana.py available = "banana split;hot fudge;cherry;malted;black and white" sundaes = available.split(";") menu = "Our available flavors are: {}."????????????? display_memu = sundaes.join(", ") menu = menu.format(display_menu)?????????

banana.py
available = "banana split;hot fudge;cherry;malted;black and white"
sundaes = available.split(";")
menu = "Our available flavors are: {}."
display_memu = sundaes.join(", ")
menu = menu.format(display_menu)

1 Answer

Oszkár Fehér
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Oszkár Fehér
Treehouse Project Reviewer

Hello David, The format() method put a word or words inside of a string. ex.:

text = "We have {} courses"
word = 'python'
output = text.format(word)
or
output = text.format('python')

>>> We have python courses

it replace

{}

with what you have inside the format() method The join() method joins a list of elements with whatever you want to. ex.:

list_of_words = ['hello', 'world']
print(' '.join(list_of_words))
>>>hello world

if i put

print(','.join(list_of_words))
>>>hello,world

or

letters = ['h', 'e', 'l', 'l', 'o']
print(''.join(letters))
>>>hello

I hope this helps you to understand. Keep up the good work!