# Return Value vs. Side Effect

my_list = [1, 2, 3, 4]
my_list = my_list.append(5)
print my_list

other_list = [1, 2, 3, 4]
other_list + [5]
print other_list

# Modification while iterating

##l1 = [1, 2, 0, 4, 0, 6]
##for num in l1:
##    if num == 0:
##        l1.remove(num)
##print l1

# Averaging

##def average(num_list):
##    count = 0
##    total = 0
##    for num in num_list:
##        count += 1
##        total += num
##    return total/count

# Indentations and colons

##l2 = [1, 2, 3, 4, 5]
##for num in l2
##print num

# Comparison vs. Assignment

##x == 1
##print x
##
##x = 1
##x == 2
##print x
##
##x = 1
##if x = 2:
##    print "x is 2"
##else:
##    print "x is not 2"

# Non-updating conditions

##count = 10
##while count > 0:
##    print count

# range index error

##def monotonically_increasing(num_list):
##    for i in range(len(num_list)):
##        if num_list[i+1] < num_list[i]:
##            return False
##    return True

# Print vs. Return

##'''
##Inputs: two vectors, represented as lists with the same length
##Returns: The dot product of those two vectors
##Effects: None
##'''
##def dot_product(vec1, vec2):
##    dot_prod = 0
##    for i in range(len(vec1)):
##        dot_prod += vec1[i]*vec2[i]
##    print dot_prod