Python

Python

1. How to fry an egg:

   • 1. Get a frying pan
   • 2. Put pan on hob
   • 3. Turn on hob
   • 4. Put oil in pan
   • 5. Hold egg over pan
   • 6. Break egg

2. Algorithms

   • Using a set of instructions
     • In order to do a job

3. Sequences

   • The order in which the computer has to solve the problem

4. Debugging

   • Looking through to check mistakes in codes

5. When writing in python to add text you need:

   • Print ("Hello")

6. You can save a program and then run it again later on

   • Used in all type of programming
     • Break down a problem
       • Decomposition

7. Comments

   • They are useful to document your program and make it easier to understand your code
   • They do not affect the way your program runs
   • Comments start with # and appear in red

8. IDLE - Integrated Development environment

   • Two models
     • Interactive mode
       • Uses all shell window
     • Script mode
       • Uses editor window

9. Variables

   • A variable can only contain number, letters and underscores
   • A variable cannot start with a number
   • To make your program easier to underestand, use meanigful names for variable such as 'firstName' rather than 'var1'
   • You cant use a Python "reserved word" as a variable name for example class is a reserved word so class= input() will result in a syntax error

10. Functions

    • Functions are special built-in routines that do a specific job
    • Functions appear in purple

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