len() function in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to find the length of the list.

Python

my_list = [1, 2, 3, 4]
length = [1](my_list)
print(length)

Drag options to blanks, or click blank then click option'

Acount

Bsize

Clen

Dlength

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'size' or 'count' instead of 'len()'.

Trying to access a property like 'length' instead of calling a function.

The len() function returns the number of items in a list.

2fill in blank

medium

Complete the code to get the length of the string.

Python

word = "hello"
word_length = [1](word)
print(word_length)

Drag options to blanks, or click blank then click option'

Alen

Bcount

Csize

Dlength

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'count' which is a string method but requires an argument.

Using 'size' or 'length' which are not functions in Python.

The len() function works for strings to count characters.

3fill in blank

hard

Fix the error in the code to correctly get the length of the tuple.

Python

my_tuple = (1, 2, 3)
length = [1](my_tuple)
print(length)

Drag options to blanks, or click blank then click option'

Asize

Blength

Ccount

Dlen

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'size' or 'length' which are not Python functions.

Trying to use 'count' which is a method but needs an argument.

The len() function works for tuples to count elements.

4fill in blank

hard

Fill both blanks to create a dictionary with words as keys and their lengths as values for words longer than 3 letters.

Python

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

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Aword

Blen(word)

Cword.upper()

Dword.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using word.upper() or word.lower() as keys instead of the original word.

Using the word itself as the value instead of its length.

The dictionary comprehension uses the word as the key and its length as the value.

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 letters.

Python

words = ["tree", "sun", "flower", "sky"]
lengths = { [1]: [2] for word in words if len(word) [3] 3 }

Drag options to blanks, or click blank then click option'

Aword.upper()

Blen(word)

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' in the condition.

Using the original word instead of uppercase for keys.

The dictionary comprehension uses the uppercase word as the key, the length as the value, and filters words longer than 3 letters.