GitHub Repository: pierian-data/complete-python-3-bootcamp
Path: blob/master/17-Advanced Python Objects and Data Structures/07-Advanced Python Objects Test - Solutions.ipynb
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Kernel: Python 3

Advanced Python Objects Test

Advanced Numbers

Problem 1: Convert 1024 to binary and hexadecimal representation

In [1]:

print(bin(1024))
print(hex(1024))

Out[1]:

0b10000000000
0x400

Problem 2: Round 5.23222 to two decimal places

In [2]:

round(5.23222,2)

Out[2]:

5.23

Problem 3: Check if every letter in the string s is lower case

In [3]:

s = 'hello how are you Mary, are you feeling okay?'

s.islower()

Out[3]:

False

Problem 4: How many times does the letter 'w' show up in the string below?

In [4]:

s = 'twywywtwywbwhsjhwuwshshwuwwwjdjdid'
s.count('w')

Out[4]:

12

Problem 5: Find the elements in set1 that are not in set2:

In [5]:

set1 = {2,3,1,5,6,8}
set2 = {3,1,7,5,6,8}

set1.difference(set2)

Out[5]:

{2}

Problem 6: Find all elements that are in either set:

In [6]:

set1.union(set2)

Out[6]:

{1, 2, 3, 5, 6, 7, 8}

Problem 7: Create this dictionary: {0: 0, 1: 1, 2: 8, 3: 27, 4: 64} using a dictionary comprehension.

In [7]:

{x:x**3 for x in range(5)}

Out[7]:

{0: 0, 1: 1, 2: 8, 3: 27, 4: 64}

Problem 8: Reverse the list below:

In [8]:

list1 = [1,2,3,4]

list1.reverse()

list1

Out[8]:

[4, 3, 2, 1]

Problem 9: Sort the list below:

In [9]:

list2 = [3,4,2,5,1]

list2.sort()

list2

Out[9]:

[1, 2, 3, 4, 5]