Practice Writing Lines To A File (28.2.2) - Handling files - Part B - Data Structures and Algorithms in Python
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Writing Lines to a File

Practice - Writing Lines to a File

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Practice Questions

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Question 1 Easy

What does the write method do in Python?

💡 Hint: Think about what you would use if you wanted to store a message in a file.

Question 2 Easy

How do you ensure a new line is created in a file?

💡 Hint: Recall how lines in a text editor are created.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the write method return after writing to a file?

The number of characters written
An error message
The file location

💡 Hint: Consider why it might be important to know how many characters were written.

Question 2

True or False: The writelines method requires each string to include a newline character to appear on separate lines.

True
False

💡 Hint: Visualize how text appears in a file without line breaks.

2 more questions available

Challenge Problems

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Challenge 1 Hard

Write a Python script that reads from an 'input.txt' file, removes trailing whitespace from each line, and writes the cleaned lines into 'output.txt'.

💡 Hint: Pay attention to how `rstrip()` is used to clean the strings.

Challenge 2 Hard

Explain how you would handle writing a list of strings that include file contents into a new file ensuring that no additional newlines are added unintentionally.

💡 Hint: Focus on the format of the strings you're working with.

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