check if a dictionary key exists - python how to

Hello,
today i am gonna teach you a smart way to check if a given key exists in a python dictionary data structure.

If you tried to access a non-existent key in a dictionary python would raise an KeyError exception, the idea here is just to use python's exceptions mechanism to decide if the key exists or not.

Check if a dictionary key exists or not in python.

 myDict = {'name':'Adham','job':'Engineer','age':'22'}  
 try:  
    myDict['ss'] = 'abc'  
    print "Dictionary key exists!"  
 except KeyError :  
    print "The key dosen't exist , you can handle it now!"