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Showing posts with the label Python Internals

In Python, What Is The Difference Between F.readlines() And List(f)

From both Python2 Tutorial and Python3 Tutorial, there is a line in the midpoint of section 7.2.1 s… Read more In Python, What Is The Difference Between F.readlines() And List(f)

Writing (and Not) To Global Variable In Python

Coming from much less dynamic C++, I have some trouble understanding the behaviour of this Python (… Read more Writing (and Not) To Global Variable In Python

Why Does Tuple(set([1,"a","b","c","z","f"])) == Tuple(set(["a","b","c","z","f",1])) 85% Of The Time With Hash Randomization Enabled?

Given Zero Piraeus' answer to another question, we have that x = tuple(set([1, 'a', … Read more Why Does Tuple(set([1,"a","b","c","z","f"])) == Tuple(set(["a","b","c","z","f",1])) 85% Of The Time With Hash Randomization Enabled?

What Does "del" Do Exactly?

Here is my code: from memory_profiler import profile @profile def mess_with_memory(): huge_lis… Read more What Does "del" Do Exactly?

Making An Object X Such That "x In [x]" Returns False

If we make a pathological potato like this: >>> class Potato: ... def __eq__(self, oth… Read more Making An Object X Such That "x In [x]" Returns False

What Is The Default Binding To The `__import__` Attribute Of The Module `builtin`?

From Python in a Nutshell Custom Importers An advanced, rarely needed functionality that Python of… Read more What Is The Default Binding To The `__import__` Attribute Of The Module `builtin`?

In Python 3.x, Why Is There Not An Itertools Shared-object On Disk?

Is the itertools C module included somehow in the main Python binary in 3.x? Assuming that the C m… Read more In Python 3.x, Why Is There Not An Itertools Shared-object On Disk?

Why Does Genexp(generator Expression) Is Called Genexp? Not Iterexp?

A generator is a special kind of iterator, and it has some methods that an normal iterator doesn… Read more Why Does Genexp(generator Expression) Is Called Genexp? Not Iterexp?