2. What is Python?
• It is a high level programming language, it is simple to write and read.
• It is a human readable
• It use for all thing …. Like (desktop programming – Web Application
programming – Mobile Programming - Artificial Intelligence – computer
hardware …etc.)
• Object oriented programming – open source.
3. Why Python?
• Easy to learn.
• You can do any thing using it.
• Just when you know the basics you can write any program.
• Simple data types.
• Very simple syntax.
• No semicolons (;)
4. Data types
• There is no a lot of datatypes in python:
• Int
• Float
• String
• That’s it
• Any variable is in one of this data types.
5. Print command
• It is used for print
• It’s syntax is ( print(thing I want to print) )
• Just in this simple.
• We can use (‘ ‘) or (“ “) for printing the string
• We just put variable name for printing it’s value
• We can use (,) or (+) to print more than one value.
6. Print command examples
• print(‘hello world’)
• print(“Hello world”)
• The difference here if we want to print this string (‘My name’s Ali’).
• This will give an error.
• To remove the error we must write like this print(“my name’s Ali”).
7. Print command example
• We can use print command for some math operators like (+ , - , * ,/)
• So we can simple write: print(3+4)
• Or write: print(4-1)
• Or write: print(4/2)
• Or write: print (4*2)
• Or write: print (4%2)
8. Variables in Python
• We just put name and value we don’t have to put data type
• Just like this:
x=5
• If we write x or print(x) the result will be: 5
• We can know the type of x if we write: print(type(x))
• The result will be <class ‘int’>
9. Print command example
• In all programming language we cann’t write command like (“x”*5)
• But in python we can
• If we write: print(“x”*5) the result will be:
• xxxxx
• But we cann’t write (“x”+5) because x is a string and 5 is an int
• We will solve this problem latter.
