# File: ChapterLists/filterPred.py 
"""
Remove negative numbers
[-3, -2, 2, 3, 4]
"""
def removeNegative(x):  # remove all the negative numbers
    return x >= 0

def main():
    M = [2,3,-4,5,-1]
    M1 = list(filter(removeNegative, M))
    print(M,'After removing negative ints:',M1)
    
    M2 = [ x for x in M if x > 0 ]
    print(M,'After removing negative ints:',M2)

main()