python raise exception example

Example 1: how to raise a error in python

# You can raise a error in python by using the raise keyword
raise Exception("A error occured!")

Example 2: throwing an exception python

raise Exception("message")

Example 3: raise exception in python

raise Exception('I know Python!') # Don't! If you catch, likely to hide bugs.

Example 4: raise python

# Raise is used to cause an error
raise(Exception("Put whatever you want here!"))
raise(TypeError)

Example 5: how to use except statement in python

>>> def divide(x, y):
...     try:
...         result = x / y
...     except ZeroDivisionError:
...         print("division by zero!")
...     else:
...         print("result is", result)
...     finally:
...         print("executing finally clause")
...
>>> divide(2, 1)
result is 2.0
executing finally clause
>>> divide(2, 0)
division by zero!
executing finally clause
>>> divide("2", "1")
executing finally clause
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in divide
TypeError: unsupported operand type(s) for /: 'str' and 'str'

Example 6: python raise exception

# this raises a "NameError"

>>> raise NameError('HiThere')

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: HiThere