Tracking *maximum* memory usage by a Python function

Question

I want to find out what the maximum amount of RAM allocated during the call to a function is (in Python). There are other questions on SO related to tracking RAM usage:

Answer 1

This appears to work under Windows. Don't know about other operating systems.

In [50]: import os

In [51]: import psutil

In [52]: process = psutil.Process(os.getpid())

In [53]: process.get_ext_memory_info().peak_wset
Out[53]: 41934848

Answer 2

Have been struggling with this task as well. After experimenting with psutil and methods from Adam, I wrote a function (credits to Adam Lewis) to measure the memory used by a specific function. People may find it easier to grab and use.

1) measure_memory_usage

2) test measure_memory_usage

I found that materials about threading and overriding superclass are really helpful in understanding what Adam is doing in his scripts. Sorry I cannot post the links due to my "2 links" maximum limitation.