Is this a bug or a feature in Python?

Is this a bug or a feature in Python? Do you know the explanation?
NOTE: I intentionally missed a comma in line 4, and Python does implicit string concatenation!
Meaning, "three" "four" becomes "threefour"!!! Beware of this feature in Python!

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#Python #shorts

[mohamedmohamedy]

explanation:
adjacent string literals are implicitly concatenated.
on lines 4 and 5, the two strings "three" and "four" are concatenated into "threefour"

[dhruvray]

This guy is honestly just training us to spot errors when we have to fix our own code

[KananHasanov-bkop]

yeah you forgot the comma after "three", so Python think that "three" and "four" is one element (and they both are concatenate)

[Magnymbus]

Missed a ", " so three and four concat. Lmao. I've done this so many times.

[linusbrendel]

I don't see an issue here. Between "three" and "four" there is no comma, thus concatenating them into one string. This will result in having four strings in the array.
This is intended behaviour for very large strings, so that one can break them into multiple lines.

Edit: I guess one could say: "It's not a bug. It's a feature. :)"

[bluvesta]

line 3 and 4 are not separated they are one line therefore the answer is 4 if you put a comma after string "three" then the answer will be 5

[maxmx]

IF a Junior run that code:
Python: "error at your brain"
Sênior:
Python: "Nothing wrong here"

[trucookieq]

Explanation: “three” and “four” are treated as “three”+”four”
Therefore there really is 4 items

[upgradestudy]

In between 3 and 4 you don't separate it with comma (, ) that's why it's considered as a one combined string ( "threefour")

[CunningBard]

I'm laughing so hard, out of all the python jokes I've seen this was the funniest one I dont know why

[fardinahsan]

I definitely think this should throw a compile time error. Its strange and unexpected behavior for most devs, even as someone who has been using python exclusively for the last two years, I spotted the missing comma but though its going to throw a syntax error, not implicitly concat them.

On the same note, people should watch our for additional commas (not only missing commas) as well as commas are what syntactically create tuples not round brackets. You might mistakenly create tuples if you place a comma by mistake somewhere.

[prashantwarghude]

', ' is Missing after "three"
Which means "three"&"four" is a single element
Thats why len(a) = 4
✌️

[alexander_adnan]

If you want to see length of list equal to 5 you need to add a comma after the string « three »
Without a final comma, the string « Three » will be a literal that will be concatenated to the string « Four ».

[ayushyadav]

He didn't put a comma to separate "three" and "four", thus they catenated to one and reported a list of 4 items 🚶‍♂️

[vaishnavikhandare]

there is no comma between "three" and "four" so it is considered as a single string "threefour"

[dnbndu]

Comma after "three" and "four" be like "Mujhe andar to lo"😂.

[dbfuentes]

The "three" and "four" concatenated in 1 line (miss the, in the end) so is correct.

[taranveersingh]

", " missing after "three"
Logical error detected

[carnavshorts]

there is also supposed to be a comma after three

[aqwex]

Там нет запятой после "three"
Значит "three"+ "four" это один элемент списка .
Это не баг :)