Detailed Notes: Python Revision | Computer Science for Grade 12 PDF Download

 Page 1


Introduction
It is widely used general purpose,high level programming 
language.Developed by Guido van Rossum in 1991.
It is used for:
software development, 
web development (server-side),
system scripting, 
Mathematics.
Page 2


Introduction
It is widely used general purpose,high level programming 
language.Developed by Guido van Rossum in 1991.
It is used for:
software development, 
web development (server-side),
system scripting, 
Mathematics.
Features of Python
1. Easy to use – Due to simple syntax rule
2. Interpreted language – Code execution & 
interpretation line by line
3. Cross-platform language – It can run on 
windows,linux,macinetosh etc. equally
4. Expressive language – Less code to be written as it 
itself express the purpose of the code.
5. Completeness – Support wide rage of library
6. Free & Open Source – Can be downloaded freely 
and source code can be modify for improvement
Page 3


Introduction
It is widely used general purpose,high level programming 
language.Developed by Guido van Rossum in 1991.
It is used for:
software development, 
web development (server-side),
system scripting, 
Mathematics.
Features of Python
1. Easy to use – Due to simple syntax rule
2. Interpreted language – Code execution & 
interpretation line by line
3. Cross-platform language – It can run on 
windows,linux,macinetosh etc. equally
4. Expressive language – Less code to be written as it 
itself express the purpose of the code.
5. Completeness – Support wide rage of library
6. Free & Open Source – Can be downloaded freely 
and source code can be modify for improvement
Shortcomings of Python
1. Lesser libraries – as compared to other 
programming languages like c++,java,.net
2. Slow language – as it is interpreted languages,it
executes the program slowly.
3. Weak on Type-binding – It not pin point on use of a 
single variable for different data type.
Page 4


Introduction
It is widely used general purpose,high level programming 
language.Developed by Guido van Rossum in 1991.
It is used for:
software development, 
web development (server-side),
system scripting, 
Mathematics.
Features of Python
1. Easy to use – Due to simple syntax rule
2. Interpreted language – Code execution & 
interpretation line by line
3. Cross-platform language – It can run on 
windows,linux,macinetosh etc. equally
4. Expressive language – Less code to be written as it 
itself express the purpose of the code.
5. Completeness – Support wide rage of library
6. Free & Open Source – Can be downloaded freely 
and source code can be modify for improvement
Shortcomings of Python
1. Lesser libraries – as compared to other 
programming languages like c++,java,.net
2. Slow language – as it is interpreted languages,it
executes the program slowly.
3. Weak on Type-binding – It not pin point on use of a 
single variable for different data type.
How to work in Python
(i) in Interactive mode
* Search the python.exe file in the drive in which it is 
installed.
If found double click it to start python in interactive 
mode
Page 5


Introduction
It is widely used general purpose,high level programming 
language.Developed by Guido van Rossum in 1991.
It is used for:
software development, 
web development (server-side),
system scripting, 
Mathematics.
Features of Python
1. Easy to use – Due to simple syntax rule
2. Interpreted language – Code execution & 
interpretation line by line
3. Cross-platform language – It can run on 
windows,linux,macinetosh etc. equally
4. Expressive language – Less code to be written as it 
itself express the purpose of the code.
5. Completeness – Support wide rage of library
6. Free & Open Source – Can be downloaded freely 
and source code can be modify for improvement
Shortcomings of Python
1. Lesser libraries – as compared to other 
programming languages like c++,java,.net
2. Slow language – as it is interpreted languages,it
executes the program slowly.
3. Weak on Type-binding – It not pin point on use of a 
single variable for different data type.
How to work in Python
(i) in Interactive mode
* Search the python.exe file in the drive in which it is 
installed.
If found double click it to start python in interactive 
mode
How to work in Python
* Click start button -> All programs  -> 
python<version>->IDLE(Python GUI)