1. Learning Basic Python
Amlan Talukder

2. Why Python? Easier language to code
Can get things done faster in less effort
Easier language to learn
Platform independent

3. How to install Python (Windows/Mac)

4. How to install Python (Linux)
sudo apt-get install python (Debian/Ubuntu)
sudo yum install python (RedHat/CentOS/Fedora)

5. Useful python resources
Online tutorial
Book
Dive into Python

6. How to run Python
Open “Command Prompt” in Windows OS or “Terminal” in Linux/MAC OS
Type the following command to run a code file named “mypython.py”

7. How to run Python Open a program named “IDLE (Python GUI)”
Open your python source file “mypython.py” in IDLE
Type print ‘Hello World’ in the editor
Click “Run -> Run Module” to run the code

8. Python variables No need to declare the type of a variable
Any variable type can be converted into another type
Variable Types:
int (Any integer, ex: 0, 12, 29, 998)
float (Any floating point number, ex: )
str (Any text, ex: ‘The sky is blue’ or “The quick brown fox”)
bool (True or False)
For single line comment, use ‘#’ and for multiline comment, use ”””

9. Python variables

10. Condition statements if <statement>: <do something>
else:
<do something else>
if <statement>:
<do something>
elif <another statement>:
<do something else>
else:

11. Loops in Python

12. Functions in Python

13. List
List is a collection of objects (variables or other lists or dictionaries)

14. List functions A[x], get element in list A at position x
A.append(x), append x to A list
A.insert(p,x), insert x to A at position p
A. index(x), get the first position of x in A, error it not found
A.count(x), get the occurrence of x in A
A.sort(reverse=True/False), sort list A. True/False set the sorting order.
A[x:y] , get the subset of list A from position x to position y.

15. String functions

16. String functions A[x], get the element at position x of A
len(A), get the length of string A
A.upper(), get all uppercase of string A
A.lower(), get all lowercase of string A
A.split(), split string A with specific separator.
.join(Asplit), join the list of strings Asplit with a separator
A[x:y], the substring of A from x to y

17. List comprehension

18. File read/write

19. Basic operators and “math” library
+, -, *, /, **, +=, -=, %, and, or, =, ==
math.sqrt(number)
math.pow(number, power)
math.log(number)
math.ceil(number)
math.floor(number)

20. Basic operators and “math” library

21. Questions?