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This article mainly shows you "how python uses del to delete the dictionary itself". The content is easy to understand and clear. I hope it can help you solve your doubts. Let the editor lead you to study and learn this article "how python uses del to delete the dictionary itself".

Del deletes the dictionary itself

Del removes the dictionary itself from the memory level, making the dictionary object disappear completely. At the same time, you can also delete the value corresponding to a key in the dictionary. Let's demonstrate it.

Dict4 = {'name':' Tom', 'age': 18} del dict4 [' name'] # Delete the dictionary, if the key does not exist, return error print (dict4) del dict4 # Delete the entire dictionary print (dict4)

Return the result:

{'age': 18}

NameError: name 'dict4' is not defined

As can be seen from the results, after deleting the key-value pair, the dictionary indicates that a pair of elements are missing, while after deleting the dictionary, the error prompt becomes that the variable name is undefined, indicating that the program can no longer find the dictionary in memory.

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