Python program to print positive numbers in a list

• Difficulty Level : Basic
• Last Updated : 26 Oct, 2018

Given a list of numbers, write a Python program to print all positive numbers in given list.

Example:

Input: list1 = [12, -7, 5, 64, -14]
Output: 12, 5, 64

Input: list2 = [12, 14, -95, 3]
Output: [12, 14, 3]

Example #1: Print all positive numbers from given list using for loop

Iterate each element in the list using for loop and check if number is greater than or equal to 0. If the condition satisfies, then only print the number.

 # Python program to print positive Numbers in a List  # list of numberslist1 = [11, -21, 0, 45, 66, -93]  # iterating each number in listfor num in list1:          # checking condition    if num >= 0:       print(num, end = " ")

Output:

11 0 45 66

Example #2: Using while loop

 # Python program to print positive Numbers in a List  # list of numberslist1 = [-10, 21, -4, -45, -66, 93]num = 0  # using while loop     while(num < len(list1)):          # checking condition    if list1[num] >= 0:        print(list1[num], end = " ")          # increment num     num += 1

Output:

21 93

Example #3: Using list comprehension

 # Python program to print Positive Numbers in a List  # list of numberslist1 = [-10, -21, -4, 45, -66, 93]  # using list comprehensionpos_nos = [num for num in list1 if num >= 0]  print("Positive numbers in the list: ", *pos_nos)

Output:

Positive numbers in the list:  45 93

Example #4: Using lambda expressions

 # Python program to print positive Numbers in a List  # list of numbers list1 = [-10, 21, 4, -45, -66, 93, -11]     # we can also print positive no's using lambda exp. pos_nos = list(filter(lambda x: (x >= 0), list1))  print("Positive numbers in the list: ", *pos_nos)

Output:

Positive numbers in the list:  21, 4, 93

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