python swap function code example

Example 1: swapping in python

x = 5
y = 10

x, y = y, x
print("x =", x)
print("y =", y)

Example 2: swap variables in python

a = 5
b = 6
# now swp the variables
a, b = b, a
# to swap two variables you need an other string harder than the first one
c = a	# 5
a = b	# 6
b = c	# 5

Example 3: swapping variables in python

a = 1
b = 2

a, b = b, a
# a = 2 , b = 1

Example 4: python swap numbers

# Swap without using any temp variable
x = 66
y = 77 

print("Original: ", x,y)

x = x - y
y = x + y
x = y - x 

print("Swapped 1st time: ", x,y)

x = x + y
y = x - y
x = x - y 

print("Swapped 2nd time: ", x,y)

# Output:
# Original:  66 77
# Swapped 1st time:  77 66
# Swapped 2nd time:  66 77

Example 5: python swap function

def swap0(s1, s2):
    assert type(s1) == list and type(s2) == list
    tmp = s1[:]
    s1[:] = s2
    s2[:] = tmp
    
# However, the easier and better way to do a swap in Python is simply:
s1, s2 = s2, s1