Checking data types in Data Analysis Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check the data type of the variable 'x'.

Data Analysis Python

x = 10
print(type([1]))

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A10

B'x'

Cx

Dtype

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the variable name in quotes, which checks the type of a string.

Passing the value directly instead of the variable.

Using type(x) returns the data type of the variable x.

2fill in blank

medium

Complete the code to check if the variable 'data' is a list.

Data Analysis Python

data = [1, 2, 3]
print(isinstance(data, [1]))

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Aset

Btuple

Cdict

Dlist

Attempts:

3 left

💡 Hint

Common Mistakes

Using dict or tuple instead of list.

Confusing type() with isinstance().

isinstance(data, list) checks if data is a list.

3fill in blank

hard

Fix the error in the code to correctly check if 'value' is a string.

Data Analysis Python

value = 'hello'
if isinstance(value, [1]):
    print('It is a string')

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AStr

Bstr

Cstring

DString

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalized or incorrect type names like String or string.

Forgetting that Python types are case-sensitive.

The correct Python type for strings is str (all lowercase).

4fill in blank

hard

Fill both blanks to create a dictionary of word lengths for words longer than 3 characters.

Data Analysis Python

words = ['apple', 'bat', 'car', 'door']
lengths = {word: [1] for word in words if len(word) [2] 3 }

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Alen(word)

B>

C<

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong comparison operator like < instead of >.

Using the word itself instead of its length.

The dictionary comprehension uses len(word) to get length and filters words with length greater than 3 using >.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase words as keys and their lengths as values for words longer than 3 characters.

Data Analysis Python

words = ['apple', 'bat', 'car', 'door']
result = { [1]: [2] for w in words if len(w) [3] 3 }

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Aw.upper()

Blen(w)

C>

Dw

Attempts:

3 left

💡 Hint

Common Mistakes

Using the original word instead of uppercase for keys.

Using wrong comparison operators.

Mixing variable names.

The dictionary comprehension uses w.upper() as keys, len(w) as values, and filters words with length greater than 3 using >.