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
Exception may have an argument, which is value gives additional information about the problem. The contents of argument vary by exception. You capture exception's argument by supplying variable in except clause follows:
try:
You do operations here
except ExceptionType Argument:
You can print value of Argument here...
If you write code to handle single exception, you can have variable follow the name of exception in except statement. If you are trapping multiple exceptions you have a variable follow the tuple of exception.
This variable receives value of the exception mostly containing cause of exception. The variable can receive single value or multiple values in form of tuple. This tuple usually contains error string, error number, and an error location.
Example
Following is example of a single exception:
Live Demo
Output:
The argument don’contain numbers
invalid litral for int() with base 10: 'xyz'
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Study Material