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New posts in python-internals
How exactly is Python Bytecode Run in CPython?
Aug 26, 2022
python
cpython
python-internals
list comprehension filtering - "the set() trap"
Aug 25, 2022
python
python-3.x
python-internals
Improving performance of very large dictionary in Python
Aug 25, 2022
python
performance
dictionary
hashtable
python-internals
Why is range(0) == range(2, 2, 2) True in Python 3?
Aug 25, 2022
python
python-3.x
range
identity
python-internals
Why do I get this many iterations when adding to and removing from a set while iterating over it?
Oct 03, 2022
python
python-internals
Why does the size of this Python String change on a failed int conversion
Aug 25, 2022
python
string
python-3.x
unicode
python-internals
Different object size of True and False in Python 3
Sep 13, 2022
python
python-3.x
python-2.7
cpython
python-internals
Why is a trailing comma a SyntaxError in an argument list that uses *args syntax?
Aug 25, 2022
python
syntax
python-internals
Why is code using intermediate variables faster than code without?
Feb 03, 2022
python
python-3.x
cpython
python-internals
Why can I use the same name for iterator and sequence in a Python for loop?
Aug 19, 2022
python
for-loop
variable-assignment
python-internals
Python: why are * and ** faster than / and sqrt()?
Nov 14, 2022
python
c
performance
python-2.7
python-internals
list() uses slightly more memory than list comprehension
Oct 15, 2022
python
list
list-comprehension
cpython
python-internals
What exactly is __weakref__ in Python?
Aug 17, 2022
python
python-3.x
python-internals
Why is copying a shuffled list much slower?
Jun 21, 2022
python
python-internals
Why is max slower than sort?
Feb 04, 2020
python
sorting
max
python-internals
What's with the integer cache maintained by the interpreter?
Aug 17, 2022
python
caching
code-analysis
literals
python-internals
When are .pyc files refreshed?
Aug 17, 2022
python
python-internals
pyc
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?
Jun 29, 2021
python
hash
set
cpython
python-internals
Why is a class __dict__ a mappingproxy?
Oct 15, 2022
python
python-3.x
class
dictionary
python-internals
When is hash(n) == n in Python?
Aug 16, 2022
python
python-2.7
python-3.x
hash
python-internals
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