Why do two identical lists have a different memory footprint?
I created two lists l1 and l2, but each one with a different creation method:
python-internals
Tuple or list when using ‘in’ in an ‘if’ clause?
Which approach is better? Using a tuple, like:
Why is one class variable not defined in list comprehension but another is?
I just read the answer to this question: Accessing class variables from a list comprehension in the class definition
How is unicode represented internally in Python?
How is Unicode string literally represented in Python’s memory?
Is there anything faster than dict()?
I need a faster way to store and access around 3GB of k:v pairs. Where k is a string or an integer and v is an np.array() that can be of different shapes.
Accessing dictionary items by position in Python 3.6+ efficiently
I understand dictionaries are insertion ordered in Python 3.6+, as an implementation detail in 3.6 and official in 3.7+.
Python string literal concatenation
I can create a multi-line string using this syntax:
Integer File Descriptor “0” in open()
In Python 3, it is possible to open a file object using an “integer file descriptor” with the format:
How references to variables are resolved in Python
This message is a a bit long with many examples, but I hope it
will help me and others to better grasp the full story of variables
and attribute lookup in Python 2.7.
When are .pyc files refreshed?
I understand that “.pyc” files are compiled versions of the plain-text “.py” files, created at runtime to make programs run faster. However I have observed a few things: