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1 Answers

Anubhav Sharma
Anubhav Sharma 14 Sep 2025
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Exception Handling Flow

  • try block
    • Code that might raise an exception goes here.
    • If no exception happens, Python skips the except blocks.
  • except block(s)
    • Handle specific exceptions.
    • You can have multiple except clauses to catch different error types.
    • The exception object (as e) contains details about what went wrong.
  • else block
    • Runs only if no exception was raised in the try block.
    • Useful for code that should execute only when the try succeeded.
  • finally block
    • Runs always, whether an exception occurred or not.
    • Commonly used for cleanup (closing files, releasing resources, etc.).

Your Example

try:
    x = 1 / 0
except ZeroDivisionError as e:
    print("Error:", e)        # runs because division by zero happens
else:
    print("No error")         # skipped because an exception occurred
finally:
    print("Always runs")      # always executes

Output:

Error: division by zero
Always runs

More Examples

Multiple except clauses:

try:
    num = int("abc")
except ValueError:
    print("Invalid number")
except ZeroDivisionError:
    print("Division by zero")

Catching all exceptions (not always recommended):

try:
    risky_operation()
except Exception as e:
    print("Something went wrong:", e)

So in short:

  • try → attempt risky code
  • except → handle specific errors
  • else → runs only if no error
  • finally → always runs (cleanup)
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