9. .pyw
.pyo
.py .pyc
A file created
with
optimizations
A Python
script for
Windows
A Python
script
archive
File Extensions in Python
01 02 03
04 05 06
The normal
extension for
a Python
source file
The compiled
bytecode
A Windows DLL
file
.pyz
.pyd
11. Popular website build with Python
Reddit
YouTube Instagram
Google
Dropbox
Quora Pinterest
12. Step: 1
ďą To download and install Python, go to Python's official
website http://www.python.org/downloads/
Installing Python on Windows
13. Step: 2
ďą When download is complete run .exe file to install
Python.
15. Step: 4
ďą when installation was complete you can see message
âsetup was successfulâ on screen.
16. IDLE Development Environment
ďą Integrated DeveLopment Environment
ďą Text editor with smart indenting for
creating python files.
ďą Menu commands for changing system
settings and running files.
19. Datatypes
Text Type: str
Numeric Types: int, float, complex
Sequence Types: list, tuple, range
Mapping Type: dict
Set Types: set, frozenset
Boolean Type: bool
Binary Types: bytes, bytearray, memoryview
20. int float str
a=10 a=2.5 a=âGKTCSâ
complex list tuple
a=2x
a = [ âpython",
âJava", âHtmlâ ]
a = ( âpython",
âJava", âHtmlâ )
Datatypes and Example
ďą When you assign a value to a variable data type is set :
21. a = {
"name" : âAmit",
"age" : 25 }
a = { âpython",
âJava",
âHtmlâ }
a=True
complex bytes bytearray
a=2x a=bâGKTCSâ a=bytearray(5)
dict set bool
22. Basic Datatypes
ďą Integers(for numbers)
a=4+3 #answer is 7, integer
addition
ďą Floats
a=5/2 #answer is 2.5
ďą Strings
Can use â â or â â to specify.
âGKTCSâ or âGKTCSâ are
same.
23. title()
Converts the
first character of
each word to
upper case
upper()
Converts a
string into upper
case
lower()
Converts a
string into lower
case
isdigit()
Returns True if all
characters in the
string are digits
isupper()
Returns True if
all characters in
the string are in
upper case.
swapcase()
Swaps cases, lower
case becomes
upper case and
vice versa
String Methods
24. x = 2
y =
âAmit"
print(x)
print(y)
Variables
ďą Variables are use to store data values.
ďą A variable is created when you assign a value to it.
26. Rules for Python variables:
ďą A variable name must start with a letter or the underscore
character
ďą A variable name cannot start with a number
ďą A variable name can only contain alpha-numeric characters
and underscores (A-z, 0-9, and _ )
ďą Variable names are case-sensitive (age, Age and AGE are
three different variables)
27. #This would be a single line comment in Python
""" This would be a multiline comment in Python that
describes your code, your day, or anything you want it to
"""
Comments
Comments can be used to improve readability of the code.
1) Single-line comments
Simply create a line starting with the hash (#) character
2) Multi-line comments
Created by adding a delimiter (""") on each end of the
comment.
![int float str
a=10 a=2.5 a=âGKTCSâ
complex list tuple
a=2x
a = [ âpython",
âJava", âHtmlâ ]
a = ( âpython",
âJava", âHtmlâ )
Datatypes and Example
ďą When you assign a value to a variable data type is set :](https://image.slidesharecdn.com/1-introductiontopython-250306165913-49ced816/85/1-_Introduction_To_Python-pptx-for-developers-20-320.jpg)
