'import' vs. 'from .. import' in Python: Which uses more memory?

Python offers us two ways to import modules: We can use the "import" statement to load an entire module, or "from...import" to define specific names. The question is: Does "from...import" save memory, because it's only loading specific names?

[FerretYourFace]

Thanks for the explanation. I create a lot of projects on my Raspberry Pi and I was looking for anything that could improve the performance when starting a program. This discovery is very disappointing but I am very thankful you showed me that this is no longer an angle worth exploring when optimizing.

[walkdead]

Man... that was a big mistake from my part! Thanks for the advice!

[zacky]

This is great explanation! Thanks for this tutorial

[andreasjanzen]

Hi Reuven!

Very nice video, thank you!

With then Zen of Python ("Explicit is better than implicit") in mind, wouldn't it be better to use "import random" and "random.randint(...)" for the sake of clarity as to where the randint function is defined? Using "from random import randint" saves some typing, but is not as clear, particularly when you use modules that do not belong to the standard library.

[sherzodbekesanov]

This is very useful information, thanks a lot man ; )
+1 like and subscriber

[poordelir]

Thank you for this very insightful video.
Still I am struggling to understand the difference between:
import datetime
import datetime.timedelta
from datetime import timedelta
and why only the 3rd one works?? same for the similar modules.

[ThipuVaasan]

What if you have multiple files in your mymod and importing first file using "from" does also imports other files?

[vividvault]

Take my subscription

You'll be getting another watch from me.

[mistwire]

I thought I knew the answer to that... I was wrong 🤣

[kjsk]

hmm.. but even if it is "from mymod import hello", Python is going from the Top to bottom. The fact that we are not seeing variables in the o/p is that they are not in the print(), but doesnot mean that Python is ignoring them.. Any thoughts on this? We should test out when we do "from mymod import hello" but try to print the mymod.x using print(mymod.x) then if we are seeing the o/p that means Python is reading all the variables and other parts of the code even if we try to import only one function.

[shyamprasad]

From the above explanation, I guess using import package or from package import module uses same memory.

[srinithia]

What's the difference between import And import*