Some functions pt.1

def my_avg(*num):
    result = 0
    count = 0
    for i in num:
        result = result + i
        count = count + 1
    return result/count

print(my_avg(150,200,250))

def divide(num,lst):
    vydelene = list(map(lambda x: x/num, lst))
    return vydelene

print(divide(2,[1,2,4,5,666]))

def my_map( fce, lst):
    [fce for x in lst]

def print_all():
    file = open("calls.txt")
    for line in file:
        print(line)
    file.close()


def do_stuff_with_number(n):
    print(n)


the_list = (1, 2, 3, 4, 5)

for i in range(8):
    try:
        do_stuff_with_number(the_list[i])
    except IndexError:  # Raised when accessing a non-existing index of a list
        do_stuff_with_number(0)


def this_fails():
    x = 1/0

try:
    this_fails()
except ZeroDivisionError as err:
    print('WTF: ', err)