Python is a garbage-collected language. If a value isn't "reachable" from your code anymore, it will eventually get deleted. The del statement, as you saw, removes the binding of your …

I thought del was a python 2 syntax holdover like print, but it still works in python 3.

Sep 21, 2024 · The del statement doesn't reclaim memory. It removes a reference, which decrements the reference count on the value. If the count is zero, the memory can be …

For instance, rather than deleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added. Is there a reason to keep del in Python, or is it …

May 3, 2021 · However, the documentation clearly states that: "Note: del x doesn’t directly call x.__del__ () — the former decrements the reference count for x by one, and the latter is only …

Apr 28, 2014 · The use of del is probably not bad, but the existence of the syntax del for deleting list indices is an awkward feature of the language, just like len(..), both of which annoy …

Feb 2, 2014 · Python’s lists are variable-length arrays, not Lisp-style linked lists. The implementation uses a contiguous array of references to other objects, and keeps a pointer to …

88 del my_dict[key] is slightly faster than my_dict.pop(key) for removing a key from a dictionary when the key exists python

Aug 23, 2016 · 3135.109375 >>> del arr >>> usage() 2372.16796875 # numpy frees the array, but python keeps the heap big Reducing the Number of Dataframes Python keep our memory …

Nov 16, 2012 · Viewed from a general Python standpoint, del obj.column_name makes sense if the attribute column_name can be deleted. It needs to be a regular attribute - or a property …