A Introduction to Python.

1. Intro to Python
by Shuai Liu

2. agenda
• History & Basics
• Advanced & Be Pythonic
• Awesome Python Frameworks

3. History & Basics

4. “I wrote Python.”
——Guido van Rossum

5. What’s Python?
• Dynamic, strongly typed script language
• Object Oriented & Procedure Oriented & Functional
• Open source
• Simple & Beautiful & Fast
high-level interpreted
script

6. What I could do with
Python?

8. Who uses Python?

10. Let’s touch it slightly…
• Whitespace (Tab? No!)
• A combination of reference counting and a cycle-
detecting garbage collector
• 2.x vs. 3.x
• >>> import this

11. When we learning a
language…
s,
e,
q,
u,
e,
n,
c,
e
{
“map”:
“”
}
“String”
28.53
function() if else
for/while
class

12. After that, you can use a
language like C

13. variable
• number: int & float & bool
• string
• …

14. Let’s see dynamic…dynamic

16. some powerful built-in
functions
• type
• str
• int
• float

18. Sequence
• string
• list
• tuple

19. built-in functions
• len
• enumerate
• zip

20. Something more…

21. Slice
• [ : ]
• [ : : ]

22. dict

23. built-in functions
• dict.update(dict2)
• dict.keys()
• dict.fromkeys(seq, val=None)

24. function

25. branch & loop

26. Thanks