Super Quick Python Refactoring Tips

In this Python Tutorial I show you another 8 quick Python refactoring tips for cleaner and more Pythonic code. This is part 2 of my refactoring code series.
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Refactoring video part 1: • Quick Python Refactori...
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[@patloeber]

Small correction: In Tip 7 it should be - if currency in {"USD", "EUR"} - to use a set. So it must be curly braces and not parenthesis. Hope you enjoyed the video!

[@Sabre00]

I use this all the time with a List. Will change it to a Set moving forward. Excellent video as always!

[@BartDorlandt]

Isn't a tuple for effective for this. A set would only be useful when you want to enforce uniqueness. In this case a tuple is perfect.

[@NoProblem76]

I wonder what’s the performance difference in such a small collection between list set and tuple

[@dariuszspiewak5624]

In all earnest... There's no difference whether you use a list, a set,or a tuple here. There are just not enough elements to feel any difference. It'll start to show only when the number of elements goes into, say, hundreds or thousands.

[@olivermohr417]

you can also predefine standard_currencies = {"USD", "EUR"} outside the function to avoid the creation of the set each time the function is called

[@fullstackspiderman]

4:00: values are in a tuple/() not in a set/{}. Did you mean tuple or set actually?

[@qwertical]

You must have gotten the answer already, but I am just putting it here for the comments. It should be a set like he said, not a tuple like was shown.

[@micexjm3730]

so the correct line is --> if currency in {"USD", "EUR"}: for a set but
Probably both (line shown) work as well. Just remember set has unique items, tuples does not (have to)

[@wilsvenleong96]

4:00 Isn't a set in Python initialized with curly braces?

[@patloeber]

Totally right, thanks for letting me know! I pinned a comment with the correction

[@DrDeuteron]

2:00 don’t rely on enumerate’s counter variable outside the loop, because an empty argument will lead to a NameError, as the counter assignment is never executed. I have been burned by this in the else block.

[@Batman099]

tip number 1 is not even tip. 🧐 that's how people declared list.

[@patloeber]

had to start with an easy one :D but sometimes you still find this in other people's code...

[@Mdroudian]

tabnine + sourcery = excellence =D

[@krystianprogress4521]

Thank you for this tips :)

[@bosadam3516]

Hi. Nice tricks
I was trying 03:52 before I watch it :D
currencies = ["USD", "EUR"]
def process_payment(payment, currency):
if currency in currencies:
print(f"Payment: {payment} and currency is: {currency}")
else:
print(f"Global: {payment}")
Thanks ^_^

[@patloeber]

nice!

[@tigrayrimey6418]

Nice tips, thanks. could you please do some python code implementation for the Passive-aggressive algorithm for the multiclass classification case?

[@patloeber]

thanks! Will have a look at that

[@sangchoo1201]

where's tip no.0?
index not starting with 0?

[@ulissesalvesoffsec]

For tip #7, I would do like this so I don't need if's:
payment_types = {"USD": process_standard_payment, "EUR": process_international_payment}
def process_payment(payment, currency):
payment_types[currency](payment)

[@sangchoo1201]

that's not the same code.
video's code was
"run standard_payment if currency is "CSD" or "EUR", otherwise run international one"
but your code is "run different payment depend on the currency"

[@inLofiLife]

"We should be always searching for opportunities to remove duplicated code" - now I know you're like me :) thanks for the tips!

[@MrEo89]

Except “is_winning” is undefined.. so assuming most people would try these in repl and find them not to work, why not come out with better example?

[@shaishai416]

amazing video...! please do more videos like that with refactore code, "code smell" I learn a a lot from that. and BTW the AI tool is nice... I you know more like this please let us know (:

[@learnwithraghuIT]

Dam, That's good. Look forward for more such videos

[@natnaelkahsu8708]

can you make subtitles in german.

[@kaneki_ken_07]

Which VS code theme don you use??

[@toboletsgo6103]

4:02 you show tuple instead of set.

[@patloeber]

Yeah noticed this after the video :( thanks for the hint, I already pinned a comment

[@__________________________6910]

I know this except 5 and 8 points.

[@patloeber]

Great! At least you learned 2 new things :)

[@__________________________6910]

@@patloeber humm Thanks

[@name1355_0ne]

Thanks for the video, it was useful

[@saurrav3801]

Nice video bro..🔥🔥🤙

[@donnakillian1457]

Fascinating 😝😝😝 💖🔆🤪

[@manishcodeshala9639]

great video

[@ninjanape]

Thanks!

[@ІванДмитренко-х6э]

Tip 7. When checking if character is in string, should I convert a string into set?

[@MrDgf97]

Unless you’re checking a lot of characters, there’s no point. Turning a string into a set takes the same amount of time as just checking if a character exists in a string.

[@ІванДмитренко-х6э]

@@MrDgf97 thanks!

[@higheloguy9057]

Tip number 1 xD? For those people that cant tie their shoes.

[@patloeber]

Gotta start with a simple one 😂

[@fuckooo]

Thank you, some great tips here

[@patloeber]

Glad it was helpful!