Functions

Question 1

What important key word is used to create new function in Python?

Answer 1

def foo(params):

Question 2

How is called the setion that defines the function. How is it look like?

Answer 2

it is called the header, it holds parameters:
def hello_word(name):

Question 3

What is a good practice to do with every function (and all pieces of code really)

Answer 3

def foo(name):
    #to include comments
    """this one prints your name
    if you have one. lol"""
    print name

Question 4

How is called the biggest part of every function. (hopefully it is not a comment xD)

Answer 4

Body - be a body - ilg

Question 5

How multiline comment is called inside the function

Answer 5

””” DOCSTRING “””

Question 6

What have you to do with function to implement it?

Answer 6

After defining a function, it must be called to be implemented.

Question 7

Power function

Answer 7

def power(base, exponent):  # Add your parameters here!
    result = base**exponent
    print "%d to the power of %d is %d." % (base, exponent, result)

Question 8

Can function call other functions

Answer 8

YES. THAT IS THE BASIC OF RECURSION FOR BRIAN SAKE

Question 9

What is keyword ‘import’ used for

Answer 9

For importing MODULES

Question 10

What a ‘module’ is

Answer 10

A module is a file that contains definitions—including variables and functions—that you can use once it is imported.

Question 11

What ‘NameError’ means

Answer 11

means that Python doesn’t know what used thing is -> it was not defined yet

Question 12

Where sqrt() function is? In which module

Answer 12

import math

Question 13

How to properly call sqrt() function

Answer 13

math.sqrt()

Question 14

How to import certain variables, functions or classes form module. What is a syntax of this.

Answer 14

from module import function
from math import sqrt
# now you don't have to type math.sqrt() - it's now sqrt()

Question 15

How to import all things to be in yout scope

Answer 15

from module import *

Question 16

How to print everything from given module. What kind of function you should use.

Answer 16

everything = dir(math) # Sets everything to a list of things from math

Question 17

BIFS

Answer 17

Pythonyeaa

Question 18

Can functions take variable number of arguments?

Answer 18

Yes, it is done using *args?
def foo(*args):

Question 19

Some cool functions

Answer 19

min(), max(), abs()

Question 20

What is a funtion that returns the type of the data. How it is called? What it returns.

Answer 20

print type(1)
#
print type(2.0)
#
print type("Grimes")
#

Question 21

Some function

Answer 21

def shut_down(s):
    if s == "yes":
        return "Shutting down"
    elif s == "no":
        return "Shutdown aborted"
    else:  
        return "Sorry"

Question 22

How Pythoon compares strings. Type equal comparision.

Answer 22

string == “string value”

Question 23

Another function

Answer 23

def distance_from_zero(number):
    if type(number) == int or type(number) == float:
        return abs(number)
    else:
        return "Nope"

distance_from_zero(“lol”)