def checkio ( data ) :
    
    if len( data ) < 10 : return False
    
    if not any( c in data for c in "abcdefghijklmnopqrstuvwxyz" ) : return False
    if not any( c in data for c in "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ) : return False
    if not any( c in data for c in "1234567890" ) : return False
    
    return True

#Some hints
#Just check all conditions


if __name__ == '__main__':
    #These "asserts" using only for self-checking and not necessary for auto-testing
    assert checkio('A1213pokl') == False, "1st example"
    assert checkio('bAse730onE4') == True, "2nd example"
    assert checkio('asasasasasasasaas') == False, "3rd example"
    assert checkio('QWERTYqwerty') == False, "4th example"
    assert checkio('123456123456') == False, "5th example"
    assert checkio('QwErTy911poqqqq') == True, "6th example"

Create count-neighbours.py