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
Below is the list of the different modes of opening a file:
1 r-mode
For opening a file in read only. The file pointer is placed at beginning of the file. This is the default-mode.
2 rb-mode
For opening a file in read only in binary format. The file pointer is placed at beginning of the file. This is default mode.
3 r+-mode
For opening a file for both reading / writing. The file pointer placed at beginning of the file.
4 rb+-mode
For opening a file for both reading / writing in binary format. The file pointer placed at beginning of file.
5 w-mode
For opening a file for writing only. Overwrites the file if file exists. If the file does not exist, creates new file for writing purpose.
6 wb-mode
For opening a file for writing only in binary format. Generally oerwrites the file if file exists. If the file does not exist, creates the new file for writing.
7 w+-mode
For opening a file for both writing / reading. Overwrites the existing file if file exists. If file does not exist it creates new file for reading and writing.
8 wb+-mode
For opening a file for both writing and reading in binary format. Overwrites existing file if file exists. If the file don’t exist creates new file for reading and writing.
9 a-mode
For opening a file for appending. The file pointer is at end of file if file exists. That is if file is in append mode. If the file don’t exist creates a new file for writing.
10 ab-mode
For opening a file for appending in binary format. The file pointer is at end of file if file exists. That is, the file is in append-mode. If the file don’t exist creates a new file for writing.
11 a+-mode
For opening a file for appending in appending and reading. File pointer is at end of file if file exists and opens in the append mode. If file does not exist, it creates new file for reading and writing.
12 ab+-mode
For opening a file for both appending and reading in binary format. File pointer is at end of the file if file exists and file opens in the append mode. If file does not exist, it creates new file for reading and writing.
Don't miss out!
Study Material