Python

Python

Programming language
1. Even kids can use it
2. It's very popular
  1. Used by a variety of people
    1. Software engineers
    2. Data analysts
    3. Mathematicians
    4. NASA
    5. Paint Shop Pro
    6. Google's search engine
    7. Civilisation 4 Computer Game
    8. CERN Large Hadron Collider Research
    9. Dropbox
Algorithms
1. The steps we give computers to solve problems
2. Precise steps to solve problems in computing
3. The simplest steps available
Sequencing
1. Computers use a lot of sequencing
2. Order is important
3. Accuracy is important
4. It is putting steps in order
Debugging
1. Taking problems out
  1. Removing errors from the coding
IDLE Python
1. Save Python files as (insert filename).py
2. Keep variables the same
  1. eg: X needs to stay as X and not change to x
3. Python example: m=5 n=6 t=m+n print t
4. IDLE = Integrated Development Environment
5. Has two modes
  1. Interactive and script mode
    1. Interactive mode lets you see your progress as you type the code
      1. Uses the Shell window
    2. Script mode lets you save your program and run it again later
      1. Uses the Editor window
Decomposition
1. Breaking steps down
  1. Then problems can be solved (easier)
2. Decomposition leads to algorithms being made
Variables
1. A location in memory
  1. Where you can temporarily store text or numbers
  2. Used like an empty box or memory function on a calculator
  3. You can choose a name for the 'box' (the variable name)
    1. Can also change its contents in the program
2. A variable name can only contain numbers, letters and underscores
  1. A variable name can't start with a number

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	Created by Janice Huang over 4 years ago