python-internals Archives - Page 2 of 2

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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“is” operator behaves unexpectedly with integers

Why does the following behave unexpectedly in Python? >>> a = 256 >>> b = 256 >>> a is b True # This ...

April 30, 2022
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Are dictionaries ordered in Python 3.6+?

Dictionaries are insertion ordered as of Python 3.6. It is described as a CPython implementation detail rather than a language feature. The documentation ...

April 28, 2022
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Usage of slots?

What is the purpose of __slots__ in Python — especially with respect to when I would want to use it, and when not? ...

April 15, 2022
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How does the @property decorator work in Python?

I would like to understand how the built-in function property works. What confuses me is that property can also be used as a ...

April 14, 2022
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How does the @property decorator work in Python?

I would like to understand how the built-in function property works. What confuses me is that property can also be used as a ...

April 14, 2022
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Why is “1000000000000000 in range(1000000000000001)” so fast in Python 3?

It is my understanding that the range() function, which is actually an object type in Python 3, generates its contents on the fly, ...

April 7, 2022
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When is del useful in Python?

“is” operator behaves unexpectedly with integers

Are dictionaries ordered in Python 3.6+?

Usage of __slots__?

How does the @property decorator work in Python?

How does the @property decorator work in Python?

Why is “1000000000000000 in range(1000000000000001)” so fast in Python 3?

Usage of slots?