Loops-downloads-functions

What is a Python library?

• A named block of Python code that is reusable

• A collection of functions that expands the capabilities of Python

• A function that reads/writes files

What are examples of Python libraries?

• print

• regex

• requests

• open

Which program do you use to download and install a new Python library?

• import

• pip install

• pip3 install

• git pull

what are examples of a correct for loop in Python?

• for x in [1,2,3]

    print(x)

• for item in [1,2,3]:

    print(x)

• for item in [1,2,3]:

    print(item)

• for x of [1,2,3]:

    print(x)

What is the output of this code?

dates = [1210, 1520, 1340]

for date in dates:

  print(dates)

• [1210, 1520, 1340]

• [1210, 1520, 1340]

  [1210, 1520, 1340]

  [1210, 1520, 1340]

• 1210

  1520

  1340

• Error

Which regex will match only the URL?

<a href="https://example.com">example</a>

• "href=".+""

• "href="(.+)""

• 'href="(.+)"'

• 'href="([^"]+)"'

Which Python library is used for regular expressions?

• requests

• re

• regex

• RE

How do you search a regex pattern in a string?

pattern = "\w+"

test_string = "This is just a test! Testing 1 2 3."

• regex(test_string, pattern)

• regex.find_all(pattern, test_string)

• regex.findall(pattern, test_string)

• regex.findall(test_string, pattern)

What are correct function definitions in Python?

• function add_up(a,b):

    print(a+b)

• for a,b:

    print(a+b)

• def add_up(a,b):

    print(a+b)

• func add_up[a,b]:

    print(a+b)

How do you download a file using Python?

• requests.get(url)

• requests.get(link)

• url.get.requests()

• url.requests.get()