“ %% time”在python-3中是什么意思？

Question

What does %%time mean in python? I am using python 3 and have some source code containing

%%time

Does this call the time module? or does it have another function?

Answer 1

%%time is a magic command. It's a part of IPython.

%%time prints the wall time for the entire cell whereas %time gives you the time for first line only

Using %%time or %time prints 2 values:

1. CPU Times
2. Wall Time

You can read more about it in the documentation