ALL 47 STRING METHODS IN PYTHON EXPLAINED

Here are all 47 of the string methods that you will find in vanilla Python. How many of them do you know?
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00:00 Intro
00:36 capitalize()
00:56 casefold()
01:36 center()
02:02 count()
02:25 encode()
02:55 endswith()
03:34 expandtabs()
03:56 find()
04:45 format()
05:20 format_map()
05:26 index()
06:17 isalnum()
06:49 isalpha()
07:04 isascci()
07:24 isdecimal() / isdigit() / isnumeric()
09:35 isidentifier()
10:06 islower()
10:26 isprintable()
10:49 isspace()
11:05 istitle()
11:30 isupper()
11:52 join()
12:35 ljust()
12:58 lower()
13:16 lstrip.
13:42 maketrans() / translate()
14:57 partition()
15:27 removeprefix()
15:43 removesuffix()
15:59 replace()
16:47 rfind()
17:21 rindex()
17:44 rjust()
18:02 rpartition()
18:34 rsplit() / split()
19:59 rstrip()
20:17 splitlines()
20:56 startswith()
21:15 strip()
21:40 swapcase()
21:54 title()
22:16 upper()
22:17 zfill()
22:48 Wrapping it up

[@jumper0122]

I feel like the most useful case where you'd use strip() was left out of this video. When used with no parameters, it strips spaces from the beginning and the end of a string. It's used all the time as the first step in sanitizing data from user input. I loved this video regardless though! I did not know about some of these, namely the weird fill ones

[@StampleD2147AI]

Lol, I never knew that! I always just use split() with join haha

[@comandanteej]

Also the difference between strip and removeprefix: the first one takes a list of characters that may be removed multiple times, while the second one just removes the parameter as a single string.

[@Wave1dave]

​@@StampleD2147AI Using split() and join() is still useful when trying to remove multiple whitespaces between words.

[@andrasbekes]

And also removes new line character ( ), thats handy when reading from a file.

[@kiryonnakira7566]

Honestly, the format method deserves a video on it's own.

[@arnowinter462]

And f-string as well....

[@proxima458273]

.format() should only be considered for legacy code. F-strings are far superior and should be chosen in every case they can be used… much like List Comprehensions should be chosen wherever possible.

[@aalnajim]

One of the greatest videos about python strings I have watched on KZbin. It is comprehensive! One thing I want to add is the difference between lstrip and removeprefix. The first one removes all the characters specified in its arguments starting from the left of the string until it faces a character that is not in the list of characters specified in its argument. So, print(‘Luigi gui guard’.lstrip(‘Luig ‘)) will print “ard” The second one removes the substring passed to it. So, print(‘Luigi gui guard’.removeprefix(‘Luigi ‘)) will print “gui guard” The same thing apply for rstrip and removesuffix I enjoy watching your videos. Keep the great work!

[@cerealport2726]

As usual, I learned something new from this video! It's a really useful summary!

[@vasquezg86]

Great Vid! I'm learning Data Analytics rn using Python. Your content is helping me out. Thank you!

[@311DaveR]

Love this, really nice refresher, and some that I was not aware of. Thank you.

[@dzendys_]

The lstrip() was presented here very shortly and used only in one scenario. It is important to add that if the text was "someemos text", it would return " text". If you want to remove only the "some" from "someemos text", you can use removeprefix(). Be careful with this. Last thing someone mentioned it in comments was: "What if you didn't give it any parameters?" -> It would delete spaces only on the left side, if there had been some spaces ofc

[@kevon217]

Love videos like this. Thanks for sharing!

[@chairfacenope5836]

This was very consice and easy to follow; thank you for the time stamps.

[@midnightanna9925]

I typed out every string method as I followed this video! omg we did it! Thank you for such a valuable video!! viewer: str = "{subject} is: {action}." print(viewer.format(subject="Midnight Anna", action="subscribing!"))

[@user-bp5pq7hi7q]

brother this is the best video when i seen, short but all methods understandable

[@azizbekbarotboyev8015]

A must-have video for beginners. thanks

[@mohamad_subhi]

i think this is the most useful video i've seen today thanks for your effort 😍

[@DaryaIbrahim]

Wazzaaap, even though the index was my best one for some personal reasons , I found both center and expandtabs very useful in my current project, thanks to you as always, and happy new year!

[@ericmunschi4655]

Very interesting and usefull ! Thanks

[@frenamakenson9844]

thanks for sharing man, good explanation

[@rje4242]

one thing that makes sense for learning is to logically group operations together, like print(text.center(20,'*')) print(text.ljust(20,'*')) print(text.rjust(20,'*')) 3 alignments that take the exact same parameters. also, isspace() counts ALL whitespace as spaces - so tabs and linefeeds count as well, more useful than testing only for the space character.

[@facilvenir]

Great video. Mot likely I'll have to come back eventually hahaha I really like your channel.

[@theedspage]

Thank you, this video is very informative.

[@okwudili6512]

Very useful video. Thanks a lot

[@esergey12]

Very useful. Thanks 👍

[@r.v.e3361]

this is so good, Thx for that

[@irvinmuziwenkosi]

You are the best. Everything is well explained 🤩

[@KriptoKenYT]

Thank you bro, im making sure im all refreshed for my final tomorrow lol

[@user-cp7jz2oh1m]

Thank you very much, your are a gift!!!

[@Anzeljaeg]

Amazing content ty

[@perfect_man6263]

its been a year! and still a wonderful video :)

[@GeoMan1217]

I enjoy these types of videos. I've used Python for years now but find myself using methods I'm more familiar with, and making them work instead of using the correct method and saving time. Keep up the great work!

[@Indently]

I’m the same, finding ideas like this to record is what I really enjoy doing, and even better if they help people :)

[@grzegorzryznar5101]

Thanks for video!. 1. For isalnum() also "_" is valid 2. ascii is pronounced as "aski"

[@MuslimMan377]

"_" isnt valid for isalnum() just checked 😊

[@julians.2597]

@@MuslimMan377 and neither is "1_000"

[@Lets_code_together_]

Thanks for the knowledge...................... it's just insane lecture

[@Ibrohimtoshpolatov-gq6io]

wow bro thanks greets from Uzbekistan🙌👍

[@sorin32]

Really nice video, thanks. on the endswith() you can also use another string not a single char, i.e. “apple”.endswith(“ple”)

[@ProfRoxas]

yea, it's a bit misleading, since afaik python doesn't specifically have single characters and all these functions work with strings .replace() .startswith .endswith() etc

[@user-te1jv3ub5l]

You are superb ma bro ❤ i really understand your explanation

[@vishalprajapati1004]

Very useful thank you sir❤

[@mubaligh_e_azam_mission]

Very very good lecture

[@user-fe9em2sg8l]

Thank you!

[@amarnathmishra8697]

Bruv , Make a cheat sheet for all 47 methods . You have covered everything . We need to have a cheat-sheet with examples handy.

[@okporuanefeoghenevwegba5936]

Thank you very much sir.

[@KeithKazamaFlick]

great video . do more method vidoes

[@uvanana.]

Thanks a lot :)

[@arunalakmal9031]

Thanks dude

[@silver-wp7ky]

thank you!

[@mohamed-triki]

This video is literally GOLD !!!

[@bogdanborta8861]

I ❤ your videos! Good job

[@vasunurukurthi5624]

rely very useful 😍😍

[@LidaTheBishop]

I LOVE YOU!☺

[@richardboreiko]

KZbin says that two videos in the playlist are hidden - can you tell us what they are or unhide them?

[@munivoltarc]

Hi, could you make a video on functions of python from basic to advanced, and nested functions and class methods nested functions

[@chestnutmongrel]

I think it's worth mentioning that neither isdecimal() nor isnumeric() nor isdigit() return True for a line '-1', regardles the line is perfectly fine for int().

[@lorak95]

Would be cool to do the same with DICTs and LISTs. Many thanks!

[@charlesotoghile6547]

Creating a function to run desired string function against each item on the list should solve this

[@bruhlickd]

Make one with all methods of OS library!!!!

[@Harveydent2001]

Gracias

[@memo_force]

What your IDE you use?

[@rezahajivand7498]

Hello . Thanks

[@manzhizhang7194]

pretty useful videos, just in case, #17 are CHINESE NUMBERS!!

[@asmitdutta]

can you make a finger counting app

[@Almulikie]

THANKS

[@Indently]

No problem

[@misterkite7712]

Why do we need to use translate/maketrans? The replace method is really easier!

[@thiyagua3188]

Nice

[@MohammadAsgharShah]

Looking for some DATABASE functions like CRUD!!!

[@kiryonnakira7566]

0:52 xDD i saw that

[@moonilyas]

Hi there, Great topic for strings, but if I want run the code in start of video it is not working code is as follow: def get_string_methods(): i: int = 0 for method in dir(str): if not in method: i += 1 print(i) print(i ,method, sep=': ') Is there any thing missing in the code?

[@trevorli2697]

Thanks for sharing, Big help! BTW, 8:30 those are Chinese numbers! hahhah

[@mallninja9805]

Is casefold different from lower in any way?

[@magicvibrations5180]

What is the difference between casefold() and lower()?

[@lte7151]

8:27 those numbers are Chinese

[@callbettersaul]

What's the difference between casefold() and lower()?

[@dzendys_]

casefold is more aggresive than lower -> example with german ß, casefold will make it ss but lower wont do anything

[@callbettersaul]

@@dzendys_ Thank you for the quick response :).

[@zeicold]

8:21 these are actually Chinese digis btw

[@modeoinmoddle3995]

I didn't know there was an "isAshi()" method 🤣🤣🤣 (7:05)

[@arnowinter462]

Me neither, I never heard "ASCII" pronounced that way... ;-)

[@shaheerhassan1157]

which compiler u using?

[@spaghettiking653]

Probably CPython

[@wantstocomment7092]

I remembered to comment. Was that wazzzaaap speedy?

[@kvelez]

Cool

[@whimsicalkins5585]

Hellooo, 15:32 Guys. I loove this video

[@phantom008varun4]

Note guys these methods do not alter the actual data that variable is constant...

[@hlubradio2318]

Hey is it just me or is VS Code faster in code suggestions eg AI

[@ItsStaffDaddy]

Can someone give a use case where .isprintable() would be important? I'm sure it is useful, but I can't think of anything.

[@ItsStaffDaddy]

Disregard, despite the internet not having anything, ChatGPT gave some good use cases for normalizing strings before tokenizing and feeding it into NLP models and such.

[@jyvben1520]

detects \t \v \u \b ... in one function call, returns False if found any of them. can not test just on "\\" or chr(92) in text which could be normal. no need for if "\t" in text or " " in text or " " in text .... :

[@philtoa334]

[@user-hd3pz2ow1b]

cool

[@Chuen666]

I don't like to use "format()", just ues f-string, it's mort ez to understand and read

[@OnlyXaM]

8:28 they are Chinese btw *

[@DerBarde2012]

.lower and .casefold look similar to me

[@BeardBarians]

You could've used enumerate in the loop at the start!!

[@Indently]

The count would not display properly with the code above because of the if check. But you're welcome to share some code and show me otherwise :)

[@BeardBarians]

@@Indently Ahh I didn't see the count before. After watching the video though, I thought would it be better to do if not method.startswith("__") instead of if not "__" in method as it would allow functions to have a __ inside of them, as well as not checking the whole string for the characters

[@gardnmi]

@@Indently Here ya go. Thanks for the video. def print_methods(obj): methods = [m for m in dir(obj) if '_' not in m] for i, method in enumerate(methods): print(i + 1, method, sep=": ")

[@Indently]

Isn’t this just a chatgpt output?

[@BeardBarians]

@@Indently Which one lmao

[@joableandrosuarezcorrea1576]

what is the difference between replace() and maketrans()/ translate()

[@largewallofbeans9812]

Why exactly does .format_map(dict) exist? Couldn't you just do .format(**dict)?

[@getstart98]

👍🙏

[@esphilee]

I fell asleep after the 5th.. ya.. somewhere around there..

How insert emoji into python code? :-)

[@Indently]

Can you be more specific? Because you can directly type -> 🔥 for example and it will be in your code.

@@Indently Specific? So, I dont know how to do it. You use at 13:49 some emoji as some character of string. But how I can type it? Its need for that some addon with browsing allowed emoji or what? You write "you can directly type" but how to directly type emoji of fire on keyboard?

[@Indently]

Now I understand what you mean. On Mac I can do it by using a shortcut which gives me a small emoji table. You would have to search on Google whether there's an option for quick emoji insertion for your OS.

​@@Indently So simply copy from somewhere and paste into code ? Ok, its seem easy. Btw thx for this video and video called "6 CLEAN Tips To IMPROVE Your Python Functions" , I learned a lot today. I subscribe you today.

[@richardboreiko]

The c in ascii should be pronounced like a k, not sh.

[@arham2549]

i commeted

[@grease253]

Python gold

[@rondamon4408]

Only 50 minutes to record?

[@hanying_0705]

This video is good, but In # 17, those are not Japanese numbers, they are Chinese numbers!

[@teabest2056]

一二三四 is not a Japanese number, but a Chinese number

[@niteshbabu5731]

3-4 of them were repeated 😂

[@panxel8615]

bruh.. casefold is just lower

[@Indently]

If you're feeling really confident, post that on Stack Overflow.

[@panxel8615]

@@Indently stack overflow is the reddit for programmers no ty LMAO

[@Indently]

Otherwise you'll find other people who think casefold and lower are the same on TikTok.

[@panxel8615]

@@Indently its a stronger lower method. yippe. im pretty good at python and have no idea how to improve from now

[@jaredbrooks2226]

Jesus loves you. Why don't you get to know him soon?

[@Indently]

Is that a threat

[@jaredbrooks2226]

@@Indently *An invitation to look into something rather interesting but too often gets brushed aside.

[@Indently]

From where I come from in Italy, getting to know Jesus is a completely different thing 😂

[@jaredbrooks2226]

@@Indently I didn't know of that. I only want you to get to know the Loving Maker of All Existence through accepting him as God and Savior.

[@roseleyzhang4777]

The content was pretty good but there was an error, at the video's 9:13, you said that the numbers were Japanese, but in reality that isn't true, it is Chinese, and that is really offensive!!! You just lost a subscriber, due to your lack of basic knowledge. Just some basic history, China has a longer history than Japan and came up with writing before Japan! It was created around 479 to 221 BC, and Japan adopted a lot of Chinese characters but that doesn't mean that they are Japanese!

[@Indently]

Thanks 🙏

[@Naumkovich]

hello, tell me how, when entering text, the print was spelled out, as if a person were typing?

[@Indently]

I don’t understand, could you try rephrasing that?

[@Naumkovich]

@@Indently kek sorry) when outputting "PRINT", the text appeared letter by letter, not all at once

[@Indently]

@@Naumkovich Where in the video did that happen?

[@liverandlearn448]

'.rstrip' still gives me the output: 'His name is Mario Mario.' ChatGPT says that 'The rstrip method in Python only removes trailing characters from the right side of the string, not characters within the string. To remove the second instance of "Mario" in the string, you can use string slicing or the replace method.' And then suggest 'text.replace('Mario', '', 1)' and when I prompt it to use '.rstrip' it tells me to use this: 'text[:text.rindex('Mario')] + text[text.rindex('Mario')+5:]'. What am I missing here?

[@Indently]

A '.'

[@liverandlearn448]

@@Indently lol, how dumb of me. Thanks!

[@arnowinter462]

Anyway, "ChatGPT" should not be your first choice when searching information. Do you know where this strange algorithm get the "information" from?

[@liverandlearn448]

@@arnowinter462 Ive asked it before and it doesnt want to divulge any specifics about itself or its training data. But asking that on stackoverflow would get be crucified, the less of two evils in these cases imo.

[@nnyms-ov3ff]

*chinese numbers