Python functionality and evolution
Installing Python (windows and Ubuntu)
IDLE (Integrated Development and Learning Environment)
Write the first python program and execute it
Keywords in Python
Identifiers in Python
Indentation in Python
Comments in Python
Multi-line Comments in Python
Getting user input
Python Function
Calling a function
Arguments in Function
Scope of Variables
Modules in Python
The PYTHON PATH-Variable
Python File Open
Python File Opening Modes
The file-Object-Attributes
Python File Close() Method
Python File Read/Write
Python File Position
Renaming and Deleting Files in Python
Python Directory Methods
File/Directory Methods
Exceptions in Python
The try-finally Clause
The argument of Exception
Raising Exceptions
Python Built-in Exceptions
Python OOPs Concepts
Python Classes/Objects
Creating Instance Objects
Accessing Attributes
Built-In Class Attributes
Garbage Collection
Python Inheritance
Overriding Methods
Method overriding
Data Hiding
Regular Expression
The match function
The search function
Match Object Methods & Description
Matching or Searching
Search or Replace
Regular Expression Modifiers / Option Flags
Grouping with Parentheses
Python Socket Programming
Python Socket Server
Python Socket Client
Send Data Between Clients
Python Socket or Server
Python Socket Clients
Points to ponder
Introduction
The most amazing thing in python is file handling. We have capabilities with different packages to deal with the files. You will learn to know below with examples:
Opening Files
Let’s see how to use actual data files. Python provides functions and methods to manipulate files generally by default.
The open-Function
In Python we have open() built-in function to open any file.This function creates the file object, which would be utilized to call the other support methods associated with.
Syntax
File-object = open(file-name [, access-mode][, buffering])
Below is the parameter details:
• file-name − The file-name argument is the string value that contains name of file that you want to access.
• access-mode − The access-mode determines mode in which file has to be opened, i.e., read / write / append, etc. A complete list of the possible values is given below. This is an optional parameter and default file-access mode is read (r).
• buffering − If buffering value is set to 0, no buffering happens. If the buffering value is 1, the line buffering performed while accessing a file. If you specify buffering value as an integer greater than 1, then buffering action is performed with indicated buffe-size. If negative buffer size is system default(default behavior).
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Study Material