Python Basics

Question 1

How to run program on Python?

Answer 1

You need python to be installed on your computer and run in terminal prompt: python + file name;
python hello.py. In this case interpretor (python itself) will read out programm top to bottom left to right and will translate it into mashine code 0 and 1.

Question 2

How can you define varibale?

Answer 2

Veriable is just a countainer to stor some value.

Question 3

How dou you call = operator in programming?

Answer 3

It’s an assigment operator. So basically you want to assign something to something.

Question 4

How to add comment in Python?

Answer 4

#

Question 5

What types of parameter in Function you can name?

Answer 5

1. Positional - It’s a parameter that will be printed on by one in order it was passed in function.
2. Named - Optional parameters that you can call by using it’s name.
   print(“Hello world”, sep=” “)
   Sep is a name parameter and “hello world” is positional.

Question 6

How to use quots in string?

Answer 6

you can use \ for escaping ot just use “” and inside you can use single quotes ‘’.
print(“Hello World” 'friend')
print (‘Hello world “friend”’)

Question 7

What is formated string in Python?

Answer 7

Formated string in python is the way to embed expression inside strings literals. Easely allowing us to use variables inside strings.

Question 8

How many way you know to use formated string?

Answer 8

There is a 3 way.
1. f-strings
This is the most modern and recommended approach. It uses curly braces {} to embed variables or expressions directly within the string. You prefix the string with f.
name = “Martin”
print(f”hello, {name }”) => Hello Martin
2. str.format()
This method involves placing curly braces {} in the string and calling the .format() method to insert values.
name = “Alice”
age = 25
greeting = “Hello, my name is {} and I am {} years old.”.format(name, age)
print(greeting)=> Hello, my name is Alice and I am 25 years old.
3 Percent (%) Formatting

Question 9

What method for string data type i can use to remove white space on left and right ?

Answer 9

str.stip()

Question 10

How i can capitalize string in python?

Answer 10

we can capitalize string with method str.capitalize()

Question 11

How we can spilt string in Python?

Answer 11

We can use method str.spilt()

Question 12

How to converte str into int in python?

Answer 12

You can use function int()
int(x)
int(input(“Add a numerber here”))

Question 13

What data types you know in python?

Answer 13

Str - string
Int- Integer (number without decimal point)
Float - floating point valus(number with decimal)

Question 14

How to define function in Python?

Answer 14

We can use keyword def to define function in Python

def hello():
function body

Question 15

Can we add default value to function parameter in Python?

Answer 15

Yes, we can do so by using = operator to a pramater
def name(userName=”Martin”):