DataCamp: Python Basics - Functions

Question 1

get the length of a string

Answer 1

len(stringVar)

Question 2

get definition of a function

Answer 2

help(funcName) or ?funcName

Question 3

What shows that an argument is optional?

Answer 3

Brackets. Complex(real [, imag]) (imag is optional)

Question 4

specify which args you’re passing (eg, if you’re skipping an arg and need to be specific)

Answer 4

function(arg1=2, arg3=5) (skipped arg2)

Question 5

What is a method?

Answer 5

Method is called on an object, and can access the data in that object

Question 6

upper case, lower case string methods

Answer 6

str.upper(), str.lower()

Question 7

Count the instances of a substring in a string

Answer 7

string.count(“xxx”)&raquo_space; counts number of “xxx” in string (case sensitive)

Question 8

return the index of the element 19 in a list

Answer 8

list.index(19)

Question 9

count the number of times 5 appears in a list

Answer 9

list.count(5)

Question 10

List methods to append, remove and reverse

Answer 10

list.append(), list.remove(), list.reverse()

Question 11

what is a python package

Answer 11

Directory of scripts you can use

Question 12

What is each script in a package called?

Answer 12

Module

Question 13

What is a python package to help manage packages?

Answer 13

pip

Question 14

Once you have pip, how do you install a package?

Answer 14

pip3 install package

Question 15

To use a package in your script, or a method in the package

Answer 15

import packageName as pN

Question 16

How do you use function1 from imported package?

Answer 16

package.function1()

Question 17

How do you import just function1 from package

Answer 17

from package import function1

Question 18

how do you import a subpackage

Answer 18

import package.subpackage