Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use?d.size()len(d)size(d)d.len()
Question
Suppose d = {"john":40, "peter":45}.
To obtain the number of entries in the dictionary, which command do we use?
d.size()len(d)size(d)d.len()
Solution
Identifying the Correct Command
To obtain the number of entries in a dictionary in Python, we need to understand the available commands and their correct usage.
- d.size(): This is not a valid command in Python for dictionaries.
- len(d): This is the correct command to use. The
len()function returns the number of items (key-value pairs) in the dictionary. - size(d): This is not a standard function in Python for obtaining the size of a dictionary.
- d.len(): This is also not a valid command in Python.
Final Answer
The correct command to obtain the number of entries in the dictionary d is len(d).
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