Python program to print negative numbers in a list

Python program to print positive numbers in a list

Last Updated : 29 Nov, 2024

In this article, we will explore various methods to o print positive numbers in a list. The simplest way to do is by using for loop function.

Using Loop

The most basic method for printing positive numbers is to use a for loop to iterate through the list and check each element.

Python

a = [-10, 15, 0, 20, -5, 30, -2]

# Using a for loop to print positive number
for val in a:
    if val > 0:
        print(val)

Output

15
20
30

Explanation:

Iterates over the list numbers.
For each number checks if the number is greater than 0 (val > 0).
If the condition is true than print the number.

Using List Comprehension

List comprehension provides a compact and Pythonic way to filter positive numbers.

Python

a = [-10, 15, 0, 20, -5, 30, -2]

# List comprehension to filter positive numbers
res = [i for i in a if i > 0]
print(res)

Output

[15, 20, 30]

Using filter() Function

The filter() function can be used to filter out positive numbers from the list.

Python

a = [-10, 15, 0, 20, -5, 30, -2]

# Using filter() to get positive numbers
res = filter(lambda x: x > 0, a)

# Convert filter object to list and print
print(list(res))

Output

[15, 20, 30]

Python program to print negative numbers in a list

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