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?
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4Full code or at least a snippet would be ideal to give you more precice answers. Also: Have you tried running the code to see what it does?FlyingTeller– FlyingTeller2018-03-21 10:17:24 +00:00Commented Mar 21, 2018 at 10:17
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6isn't that iPython?Jean-François Fabre– Jean-François Fabre ♦2018-03-21 10:18:50 +00:00Commented Mar 21, 2018 at 10:18
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like here: stackoverflow.com/questions/32565829/…Jean-François Fabre– Jean-François Fabre ♦2018-03-21 10:19:31 +00:00Commented Mar 21, 2018 at 10:19
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Formatting changes.rlandster– rlandster2018-03-21 11:35:30 +00:00Commented Mar 21, 2018 at 11:35
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1 Answer
%%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:
- CPU Times
- Wall Time
You can read more about it in the documentation
2 Comments
bobthebuilder
When I use %%time in the beginning of the cell and run the particular cell, I get only the Wall time and not the CPU time. Also, could you clarify if the wall times and cpu times are expected to change every execution (without changing the code)?
Raptor
@bobthebuilder I didn't have the same problem. Also, for your 2nd question, your computer/server might be idle or busy from time to time, therefore the CPU times are expected to vary in each execution.
