Exercise: Standard Libraries

Questions for: Standard Libraries

Which module in Python is used for working with the operating system, providing a way to execute shell commands?
A:
os
B:
system
C:
shell
D:
command
Answer: A
The os module in Python provides a way to interact with the operating system, including functions to execute shell commands.
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What is the purpose of the collections module?
A:
Mathematical operations
B:
Working with collections (lists, tuples, sets, etc.)
C:
File I/O operations
D:
Web development
Answer: B
The collections module in Python provides specialized data types and functions to work with collections, such as namedtuple, Counter, and defaultdict.
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Which function is used to retrieve the keys of a dictionary?
A:
dict.keys()
B:
dict.get_keys()
C:
dict.extract_keys()
D:
dict.getkeys()
Answer: A
The keys() method is used to retrieve the keys of a dictionary in Python.
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Which module in Python is commonly used for working with regular expressions but has a simpler API compared to re?
A:
regex
B:
regexp
C:
relib
D:
regexlib
Answer: A
The regex module in Python provides a simpler API for working with regular expressions, offering additional features and improvements over the standard re module.
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Which module in Python provides functionality to work with compressed files, such as ZIP files?
A:
gzip
B:
zipfile
C:
compress
D:
archive
Answer: B
The zipfile module in Python provides tools for creating, reading, and extracting ZIP files.
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