Python array elements in if statement

Question

I have some array with integers, and for loop. I am trying to test if some specific elements in array is bigger or smaller that some integer. This code explain it better:

array = [1,2,3,4,5]
for i in range(5):
    if array[i] >= 3:
        print(sometext)
    else:
        print(othertext)

But i got an ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

SOLUTION: I did indent it properly. This above is just simplification(some stupid example) of my code. I found where the error is. It is because I initialized array with numpy as

a = numpy.empty(5) and not like this:

a = [0 for i in range(5)]

Thank you everybody for your help

Sake

please properly indent your code – Anatomy

This link might be useful to you, possible duplicate? #10063454 – Denumerable

This might seem pedantic, but that isn't an array, that is a list. However, your error message seems to come from numpy. You should provide a minimal reproducible example, although your question is almost certainly a duplicate – Krasnoyarsk

This isn't an array but a list with name array – Jeopardy

Answer 1

You should iterate over the array itself:

array = [1, 2, 3, 4, 5]

for item in array:
    if item >= 3:
        print("yes")
    else:
        print("no")

Faultfinding

Answer 2

It worked for me with proper intendations:

>>> array = [1,2,3,4,5]
>>> for i in range(5):
...     if array[i] >= 3:
...             print("Yes")
...     else:
...             print("No")
...

Provinciality

Answer 3

This isn't really the most pythoninc way of doing what you're describing.

array = [1,2,3,4,5]
for element in array:
    if element >= 3:
        print("Yes")
    else:
        print("No")

Reference: https://wiki.python.org/moin/ForLoop

Nuno

Answer 4

The Error that you are getting is basically due to INDENTATION . Python strictly follows indentation , meaning that it will only execute codes written in that specific Block . Refer Python Indentation Rule for more details. Thank You. Happy Coding Ahead.

Hoebart

I did indent it properly in my code, but sorry, not here in post. – Sake

Answer 5

I gave this a go

array = [1,2,3,4,5]

x1 = (array[0])
x2= (array[1])
x3= (array[2])
x4= (array[3])
x5= (array[4])


if x1 <= x2:
  print("very good")
else:
  print("also good")

how's that?

Ademption

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. – Disbelief