try, except, else , finally in python

Humble Devassy Chirammal Forums Python Programming try, except, else , finally in python

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    Humble
    Keymaster
    try:
      will try to execute
    except exception1:
      have to act on exception1, if occurred
    except exception2:
      have to act on exception2, if occurred 
    else:
      I will execute if there was NO EXCEPTION 
    finally:
      You can not skip me, I will always execute regardless there was exception  or not...
    
    
    Isnt it clear from above? if not please let me know..
    
    
    >>> try:
    ...     fd = open("/root/ad.txt","r")
    ... except e:
    ...     print e
    ... 
    Traceback (most recent call last):
      File "<stdin>", line 2, in <module>
    IOError: [Errno 13] Permission denied: '/root/ad.txt'
    >>> 
    
    >>> e
    IOError(13, 'Permission denied')
    >>> e.args
    (13, 'Permission denied')
    >>> try:
    ...     fd = open("/root/ad.txt","r")
    ... except IOError,e:
    ...     print e
    ... finally:
    ...     print "I am done"
    ... 
    [Errno 13] Permission denied: '/root/ad.txt'
    I am done
    >>> type(e)
    <type 'exceptions.IOError'>
    >>> e
    IOError(13, 'Permission denied')
    
    >>> e.args
    (13, 'Permission denied')
    >>> 
    
    
    Also you can use only except: which will capture any exceptions from try block. Also its possible to give a list of exceptions using a tuple.
    
    except (exception1, exception2):
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