In [1]:

    

squares = [i**2 for i in range(5)]
print(squares)


    

    




[0, 1, 4, 9, 16]

In [2]:

    

squares = []
for i in range(5):
    squares.append(i**2)

print(squares)


    

    




[0, 1, 4, 9, 16]

In [3]:

    

odds = [i for i in range(10) if i % 2 == 1]
print(odds)


    

    




[1, 3, 5, 7, 9]

In [4]:

    

odds = []
for i in range(10):
    if i % 2 == 1:
        odds.append(i)

print(odds)


    

    




[1, 3, 5, 7, 9]

In [5]:

    

odd_even = ['odd' if i % 2 == 1 else 'even' for i in range(10)]
print(odd_even)


    

    




['even', 'odd', 'even', 'odd', 'even', 'odd', 'even', 'odd', 'even', 'odd']

In [6]:

    

odd_even = []
for i in range(10):
    if i % 2 == 1:
        odd_even.append('odd')
    else:
        odd_even.append('even')

print(odd_even)


    

    




['even', 'odd', 'even', 'odd', 'even', 'odd', 'even', 'odd', 'even', 'odd']

In [7]:

    

odd10 = [i * 10 if i % 2 == 1 else i for i in range(10)]
print(odd10)


    

    




[0, 10, 2, 30, 4, 50, 6, 70, 8, 90]

In [8]:

    

matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]


    

In [9]:

    

flat = [x for row in matrix for x in row]
print(flat)


    

    




[1, 2, 3, 4, 5, 6, 7, 8, 9]

In [10]:

    

flat = []
for row in matrix:
    for x in row:
        flat.append(x)

print(flat)


    

    




[1, 2, 3, 4, 5, 6, 7, 8, 9]

In [11]:

    

cells = [(row, col) for row in range(3) for col in range(2)]
print(cells)


    

    




[(0, 0), (0, 1), (1, 0), (1, 1), (2, 0), (2, 1)]

In [12]:

    

cells = [(row, col) for row in range(3)
         for col in range(2) if col == row]
print(cells)


    

    




[(0, 0), (1, 1)]

In [13]:

    

cells = [(row, col) for row in range(3) if row % 2 == 0
         for col in range(2) if col % 2 == 0]
print(cells)


    

    




[(0, 0), (2, 0)]

In [14]:

    

l_str1 = ['a', 'b', 'c']
l_str2 = ['x', 'y', 'z']


    

In [15]:

    

l_zip = [(s1, s2) for s1, s2 in zip(l_str1, l_str2)]
print(l_zip)


    

    




[('a', 'x'), ('b', 'y'), ('c', 'z')]

In [16]:

    

l_zip = []
for s1, s2 in zip(l_str1, l_str2):
    l_zip.append((s1, s2))

print(l_zip)


    

    




[('a', 'x'), ('b', 'y'), ('c', 'z')]

In [17]:

    

l_enu = [(i, s) for i, s in enumerate(l_str1)]
print(l_enu)


    

    




[(0, 'a'), (1, 'b'), (2, 'c')]

In [18]:

    

l_enu = []
for i, s in enumerate(l_str1):
    l_enu.append((i, s))

print(l_enu)


    

    




[(0, 'a'), (1, 'b'), (2, 'c')]

In [19]:

    

l_zip_if = [(s1, s2) for s1, s2 in zip(l_str1, l_str2) if s1 != 'b']
print(l_zip_if)


    

    




[('a', 'x'), ('c', 'z')]

In [20]:

    

l_int1 = [1, 2, 3]
l_int2 = [10, 20, 30]


    

In [21]:

    

l_sub = [i2 - i1 for i1, i2 in zip(l_int1, l_int2)]
print(l_sub)


    

    




[9, 18, 27]