String Concatenation and Formatting - Intermediate Python Programming p.2

Welcome to part 2 of the intermediate Python programming tutorial series. In this part, we're going to talk about strings. Strange that we find such a topic in an intermediate series, but it's probably one of the most common things done improperly.

[FullSpectrumSurvival]

Always enjoy your work Sentdex. Thanks. No matter how much I learn, I always enjoy a walk back to the basics.

[IamJakoby]

this looks even cleaner in my opinion. Use the "f" tag.

names = ['Jeff', 'Gary', 'Jill', 'Samantha']

for name in names:
print(f'Hello there, {name}')

[kyleconn]

animals = (bird, cat, dog)
print("The {} was eaten by the {} which was chased off by the {}".format(bird, cat, dog)
Is the same as...
print("The {} was eaten by the {} which was chased off by the {}".format(*animals)
The * unloads the list, tuple..etc.. saves on space, especially when doing SQL.

[TangoFoxtrotWhiskey]

The indexes can be useful in some circumstances. If your string was going to be 'Gary bought 12 apples. Gary ate one on the way home.' You would use indices 0, 1, 0 and wouldn't have to include name twice in the format list.

[Credin]

Please keep uploading videos, your lessons are amazing, short and straight to the point, and thanks for them =)

[rotrose]

Thank you very much, learning python with you is a joy for evreyone.

[hirok]

This guy is going to break his keyboard eventually

[tweede]

There's a neat little function called f-strings now. I think it's pretty readable. A simple example:


time_of_day = 'morning'
animal_type = 'bird'

sentence = f'There was a {animal_type} at my window this {time_of_day}'

print(sentence)

[hammad.ahmed]

hey man, love your python basics videos :D. I am self learning programming and stumbled upon your channel was intrigued by the simplicity of python so got hooked on them. I am atm learning about tuples and lists and so far learned about conditions, loops, function definitions and some very basic stuff. But that is the syntax side of things, I want to become a complete programmer and to do that I need to solve problems right, so is there any website that has small problems which let me practice my logic muscles? Love you :D

[rotrose]

Enjoy your python series very much. Very excited to get a better way to do things. Thank you

[MrTbill]

This has got to be the most #entertaining# programming video ever made! Great info, with a bonus of smart comedy?!? "upgrade to 3": YES!

[christoffaloffagus]

If you need to use a variable multiple times you can name the curly brace placeholders like
print("{a} + {a} = {b}"'.format(a=1, b=2))

[subwaysnacker]

Is there any way to adjust your sound recording so that your typing isn't so loud? Thanks, great videos!

[danielismyhandle]

index is still useful if you want the same variable in 2 places like 'folder/{0}/{1}/{0}'.format(folder1, folder2)

[dylanriley]

You make great videos!
They help me a lot in my programs

[johnnysim]

Pretty sure you don't have to use index numbers when formatting in Python 2. Also, you can name your args when using format for better readability. For example, "hello there {name}".format(name="john")

[karinwiberg]

Hi, great video! I have a practical question, how to you comment all the lines at the same time?

[__gavin__]

4:10 Another approach using list unpacking and the sep argument of print:


print(*names, sep=', ')

[Majskolvenz]

Regarding your first example, is print('Hello there, ' + name) really less efficient than print(' '.join(['Hello there, ', name]))? I mean the latter has to construct a new list for each name.

[lucaswiese]

This is amazing, thank you!

keep making these please.