Python Built-ins u0026 Libraries: Quick Concepts Quiz Quiz

1. Regular Expressions: Pattern Matching

   What function from the 're' module would you use to check if a string starts with 'Hello'?

   1. re.scan
   2. re.compare
   3. re.check
   4. re.find
   5. re.match

2. Datetime: Getting Current Date

   Which function from the 'datetime' module returns the current local date and time as a datetime object?

   1. datetime.now
   2. datetime.time
   3. datetime.today
   4. datetime.current
   5. datetime.local

3. OS: Listing Directory Contents

   Which function from the 'os' module can be used to list all files and folders in a directory?

   1. os.listdir
   2. os.list
   3. os.dirs
   4. os.walkdir
   5. os.folders

4. Collections: Counter Usage

   If you want to count the number of occurrences of each element in a list, which class from 'collections' would you use?

   1. Counter
   2. Accumulator
   3. Tally
   4. Frequency
   5. CountMap

5. Itertools: Repeating Elements

   Which function from the 'itertools' module would you use to endlessly repeat the element 10?

   1. itertools.infinite
   2. itertools.copy
   3. itertools.repeat
   4. itertools.cycle
   5. itertools.loop

6. Sys: Exiting a Program

   How do you immediately exit a Python program using the 'sys' module?

   1. sys.stop()
   2. sys.quit()
   3. sys.exit()
   4. sys.break()
   5. sys.end()

7. RE: Extracting with Groups

   Which method would you use to extract all matching groups from a string using a compiled regex pattern?

   1. findgroup
   2. extractall
   3. findgroups
   4. scan
   5. findall

8. Datetime: Formatting Dates

   What method would you use to format a datetime object as a custom string (e.g., '2024-06-10')?

   1. as_string
   2. strftime
   3. tostring
   4. convert
   5. format

9. OS: Changing Working Directory

   Which function sets the current working directory to a new path in the 'os' module?

   1. os.cddir
   2. os.chdir
   3. os.setcwd
   4. os.cd
   5. os.setdir

10. Collections: NamedTuple Purpose

    Which collections class allows you to create immutable record-like objects with named fields?

    1. recordtuple
    2. datatuple
    3. namedtuple
    4. valuetuple
    5. fieldtuple

11. Itertools: Cartesian Product

    Which itertools function generates the cartesian product between two lists?

    1. itertools.merge
    2. itertools.join
    3. itertools.chain
    4. itertools.product
    5. itertools.combine

12. Sys: Accessing Command-line Arguments

    Which attribute of the 'sys' module contains the list of command-line arguments passed to a script?

    1. sys.parameters
    2. sys.argv
    3. sys.cmd
    4. sys.args
    5. sys.input

13. RE: Replace Substrings

    Which 're' module function replaces all occurrences of a pattern in a string with a replacement string?

    1. re.replace
    2. re.sub
    3. re.change
    4. re.switch
    5. re.swap

14. Collections: Default Value Dictionaries

    Which 'collections' class creates a dictionary that provides a default value for missing keys?

    1. smartrdict
    2. initdict
    3. defaultdict
    4. autodict
    5. defaultdictory

15. Itertools: Infinite Counting Sequence

    Which itertools function produces infinite numbers starting from a specific value, such as 5, 6, 7, ...?

    1. itertools.grow
    2. itertools.step
    3. itertools.progress
    4. itertools.count
    5. itertools.increase