File system management in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to open a file named 'data.txt' for reading.

Intro to Computing

file = open('data.txt', '[1]')

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Aw

Br

Cx

Da

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' mode which erases the file content.

Using 'x' which is not a mode for reading.

The mode 'r' opens the file for reading its contents.

2fill in blank

medium

Complete the code to write the string 'Hello' into a file.

Intro to Computing

with open('greeting.txt', 'w') as file:
    file.[1]('Hello')

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Awrite

Bread

Cappend

Dclose

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'read' which only reads content.

Using 'close' which closes the file but does not write.

The 'write' method adds text to the file.

3fill in blank

hard

Fix the error in the code to properly close the file after reading.

Intro to Computing

file = open('info.txt', 'r')
content = file.read()
file.[1]()

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Aopen

Bwrite

Cclose

Dread

Attempts:

3 left

💡 Hint

Common Mistakes

Calling 'open' again instead of closing.

Trying to 'write' when only reading.

The 'close' method properly closes the file to free resources.

4fill in blank

hard

Fill both blanks to create a dictionary with file names as keys and their sizes in bytes as values.

Intro to Computing

file_sizes = {filename: [1] for filename in files if [2]

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Aos.path.getsize(filename)

Bfilename.endswith('.txt')

Cfilename.startswith('doc')

Dlen(filename)

Attempts:

3 left

💡 Hint

Common Mistakes

Using length of filename instead of file size.

Filtering files incorrectly by start instead of end.

Use os.path.getsize(filename) to get file size and filter files ending with '.txt'.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase file names as keys and their last modified time if size is greater than 1000 bytes.

Intro to Computing

file_info = [1]: os.path.getmtime([2]) for [3] in files if os.path.getsize([3]) > 1000

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Afilename.upper()

Bfilename

Dfile

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names inconsistently.

Not converting filename to uppercase for keys.

Use uppercase filename as key, original filename for functions, and iterate with 'filename'.