String cleaning (strip, lower, replace) in Data Analysis Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to remove spaces from the start and end of the string.

Data Analysis Python

cleaned = raw_string.[1]()

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

Astrip

Blower

Creplace

Dsplit

Attempts:

3 left

💡 Hint

Common Mistakes

Using lower() instead of strip()

Using replace() without specifying what to replace

The strip() method removes spaces from the start and end of a string.

2fill in blank

medium

Complete the code to convert the string to all lowercase letters.

Data Analysis Python

cleaned = raw_string.[1]()

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

Acapitalize

Blower

Creplace

Dstrip

Attempts:

3 left

💡 Hint

Common Mistakes

Using strip() instead of lower()

Using capitalize() which only changes the first letter

The lower() method changes all letters in a string to lowercase.

3fill in blank

hard

Fix the error in the code to replace all commas with semicolons.

Data Analysis Python

cleaned = raw_string.[1](',', ';')

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

Areplace

Bstrip

Clower

Dsplit

Attempts:

3 left

💡 Hint

Common Mistakes

Using strip() which does not replace characters

Using lower() which changes case, not characters

The replace() method replaces all occurrences of the first string with the second string.

4fill in blank

hard

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

Data Analysis Python

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 word instead of len(word) for values

Using < instead of > in the condition

The dictionary comprehension uses len(word) as values 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, original words as values, only for words containing 'a'.

Data Analysis Python

result = [1]: [2] for word in words if '[3]' in word}

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

Aword.upper()

Bword

Ca

Dword.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using word.lower() instead of word.upper() for keys

Checking for 'A' instead of 'a' in the condition

The keys are uppercase words using word.upper(), values are original words, and the filter checks if 'a' is in the word.