How can I check if a key exists in a Python dictionary?
An example of an AI chatbot conversation about checking keys in Python dictionaries.
How can I check if a key exists in a Python dictionary?
You can use the in keyword to check if a key exists. For example: if 'key' in my_dict:.
What if I want to check for multiple keys?
You can use a loop or a list comprehension. For example: all(key in my_dict for key in keys).
Is there a method to get a default value if the key doesn't exist?
Yes, you can use the get method: my_dict.get('key', default_value).
Can you show me a complete example?
Sure! Here's a simple example:
my_dict = {'a': 1, 'b': 2}
value = my_dict.get('c', 'Not Found')
print(value) # Output: Not Found
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