Exceptions are used to catch errors during program execution. Catching errors with exceptions during program execution helps prevent a program from crashing.<\/p>\n
Exception handling is performed in Python as follows:<\/p>\n
<\/pre>\n\ntry:
\n do_something()
\nexcept:
\n print (‘Exception occurred’)<\/p>\n\nCatch a specific exception:<\/p>\n
<\/pre>\n\ntry:
\n do_something()
\nexcept ValueError:
\n print (‘ValueError Exception occurred’)<\/p>\n\nCatch multiple exceptions:<\/p>\n
<\/pre>\n\ntry:
\n do_something()
\nexcept (ValueError, OSError):
\n print (‘Multiple Exceptions occurred’)<\/p>\n<\/p>\n
<\/pre>\n\ntry:
\n do_something()
\nexcept ValueError:
\n print (‘ValueError Exception occurred’)
\nexcept OSError:
\n print (‘OSError Exception occurred’)<\/p>\n\nUse an else statement to perform specific actions when an exception is not thrown:<\/p>\n
<\/pre>\n\ntry:
\n open_some_file()
\nexcept ValueError:
\n print (‘ValueError Exception occurred’)
\nelse:
\n close_the_file()<\/p>\n\nThrow an exception:<\/p>\n
<\/pre>\n\nraise NameError(‘Name error exception’)<\/p>\n