Run pyflame against your python code, to profile it and generate a flamegraph (here it's against singularity-monitor)

pyflame.sh

#!/bin/bash

sudo apt-get install -y autoconf automake autotools-dev g++ pkg-config python-dev python3-dev libtool make

[ ! -f ./flamegraph.pl ] && {
	curl -O https://raw.githubusercontent.com/brendangregg/FlameGraph/master/flamegraph.pl
}
[ ! -f /usr/local/bin/pyflame -o ! -d pyflame ] && {
	git clone https://github.com/uber/pyflame.git
	cd pyflame
	./autogen.sh
	./configure --prefix=/usr/local
	make
	sudo make install
}

process="singularity-monitor"
pid=`pgrep ${process%%-*}`
echo "Dump Stack Strace"
sudo /usr/local/bin/pyflame -p ${pid} -d
seconds=180
echo Launching ${seconds} seconds profiling... /usr/local/bin/pyflame -s ${seconds} -r 0.01 -p ${pid}
sudo /usr/local/bin/pyflame -s ${seconds} -r 0.01 -p ${pid} -o ${process}.prof --threads
wait $!
perl ./flamegraph.pl  < ${process}.prof > ${process}.svg