dictionary Archives - Page 14 of 20

When is del useful in Python?

I can’t really think of any reason why Python needs the del keyword (and most languages seem to not have a similar keyword). ...

May 6, 2022
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Converting dictionary to JSON

r = {'is_claimed': 'True', 'rating': 3.5} r = json.dumps(r) file.write(str(r...

May 5, 2022
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Is there any advantage of using map over unordered_map in case of trivial keys?

A recent talk about unordered_map in C++ made me realize that I should use unordered_map for most cases where I used map before, ...

May 5, 2022
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Append a dictionary to a dictionary [duplicate]

This question already has answers here: Python “extend” for a dictionary (8 answers) Closed 4 years ago. I have two existing dictionaries, and ...

May 4, 2022
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Map vs Object in JavaScript

I just discovered this feature: Map: Map objects are simple key/value maps. That confused me. Regular JavaScript objects are dictionaries, so how is ...

May 4, 2022
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Remap values in pandas column with a dict, preserve NaNs

I have a dictionary which looks like this: di = {1: "A", 2: "B"} I would like to apply it to the col1 ...

May 3, 2022
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Change the name of a key in dictionary

I want to change the key of an entry in a Python dictionary. Is there a straightforward way to do this? 2Best Answer ...

May 3, 2022
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Understanding dict.copy() – shallow or deep?

While reading up the documentation for dict.copy(), it says that it makes a shallow copy of the dictionary. Same goes for the book ...

May 3, 2022
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Creating a new dictionary in Python

I want to build a dictionary in Python. However, all the examples that I see are instantiating a dictionary from a list, etc ...

May 2, 2022
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