18-May-2026 Self-Practice 5
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user = {
'basket' : [1,2,3],
'greet' : 'hello',
'x' : True,
'age' : 20
}
user2 = dict(name='Jon Jones')
print(user.get('age', 0))
print(user.get('basket', 0))
print('basket' in user)
print('age' in user.keys())
print(user.items())
print(user.values())
print(user.keys())
user2 = user.copy()
print(user.update({'age': 55}))
print(user)
test1 = [{'name':'peter', 'age':11}, {'name':'john','age':12}]
print(test1[1].get('name'))
print(test1[1].get('age'))
a = [1,2,3]
print('************ list pop 123*******************')
a.pop()
print(a)
print('************ list pop 123*******************')
a.append('a')
a.insert(1, 'z')
a[2] = 9
b = a.copy()
#b = a[::]
b.append('y')
print(a)
print(b)
a = {1,2,3}
print('************ set pop 123*******************')
a.pop()
print(a)
print('************ set pop 123*******************')
a.update(['china', 'taiwan'])
#b = a[::] error in slice for set
b = a.copy()
b.add('singapore')
print(a)
print(b)
a = 1,2,3
print('************ tuple pop 123*******************')
print(a)
print('************ tuple pop 123*******************')
b = a[::]
#b = a.copy() # error for copy () in tuple
print(a)
print(b)
for i in range(4):
for j in range(3):
print(i, j)
Python
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