将变量更改为0以在python中节省内存是个好主意吗？

Question

I've searched and couldn't find any good answer. Let's say that I have some list that have thousands of entries or something else that consumes a lot of memory. Is it good idea to change this list/etc. value to 0...

oldlst = 0

...if it's no longer needed (or won't be updated in a very long time) or should I leave it alone in program. Or maybe there is better way to handle this.

Example:

L = range(50*2000*1000)
raw_input("Press Enter")
L = 0
print L

When I run this command I use 838.1 MB of RAM after pressing enter and changing L to just 0 I release some of the memory taken

Answer 1

You need to think on releasing memory rather than making list to 0 once not required.

Please refer