How to create an if statement that has a list in its condition?

Question

I put my question in the notes of the code. I am new to programming. I will more and likely not understand very technical responses. Please, if you can, explain it in the easiest way.

while i < len(stored):
    # I'd like this to break if any of these values are zero. How do I do that?
    if (x, y, z, t) == 0:
        break

Do not host your code off-site, and do not upload a picture of your code. Include the code as text in the question. — Will Da Silva, Jun 02 '17 at 20:03
You may also use `not all((x, y, z, t))` as an alternative to the mentioned answers — Moinuddin Quadri, Jun 02 '17 at 20:09
This was my first question. I am so sorry. I will type code in the future.@WillDaSilva — Michael Ramage MikeRamage, Jun 02 '17 at 20:18
@MoinuddinQuadri why not put that information as an answer to the question? — waterproof, Jun 02 '17 at 20:44
@MichaelRamageMikeRamage No, just `if not all((x, y, z, t))`. — Moinuddin Quadri, Jun 02 '17 at 20:52
@waterproof Because this question is already been closed as duplicate and my answer doesn't fits to the linked question — Moinuddin Quadri, Jun 02 '17 at 20:53

score 1 · Answer 1 · answered Jun 02 '17 at 20:04

1

while i <= len(stored):
    if 0 in (x, y, z, t):
        break

answered Jun 02 '17 at 20:04

Paco H.

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score 1 · Answer 2 · answered Jun 02 '17 at 20:04

1

You can use the in operator:

while i <= len(stored):
    if 0 in (x, y, z, t):
        break;

answered Jun 02 '17 at 20:04

Mureinik

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That makes sense. I appreciate the help on that. I have one more question. Do you mind helping? – Michael Ramage MikeRamage Jun 02 '17 at 20:10
This also be improved by using a `set()` for faster membership testing. – Christian Dean Jun 02 '17 at 20:12
@ChristianDean not necessarily since sets are expensive to construct. If you could construct the set once and use it multiple times in the loop though, you're probably right. – waterproof Jun 02 '17 at 20:30
1

@waterproof Well yes. In that respect you are right. But like you mentioned, I meant creating a set _outside_ of the loop, and using that. I should have been more specific. – Christian Dean Jun 02 '17 at 20:47
yep. it's not clear where (x, y, z, t) are coming from but that could be possible. – waterproof Jun 02 '17 at 20:51
x,y,z, and t are to be stored with append. Order matters because I later user their indexes to create a while loop. – Michael Ramage MikeRamage Jun 02 '17 at 21:03

How to create an if statement that has a list in its condition?

2 Answers2