Using subprocess to execute complex command with many arguments

[medatib531]

I have a shell script that is as follows:

LOAD_RRD=sysmon.rrd
DISK_RRD=disk.rrd
DISKTEMP_RRD=disktemp.rrd

rrdtool graph load1h.png \
		-Y -u 1.1 -l 0 -L 5 -v "Load" -w 700 -h 200 -t "Load stats - `/bin/date`" \
        --start end-"1h" --x-grid MINUTE:1:MINUTE:5:MINUTE:10:0:%R \
		-c ARROW\#000000 \
		DEF:load1=$LOAD_RRD:load1:AVERAGE \
		DEF:load5=$LOAD_RRD:load5:AVERAGE \
		DEF:load15=$LOAD_RRD:load15:AVERAGE \
		LINE1:load1\#ff0000:"Load average 1 min" \
		LINE1:load5\#ff6600:"Load average 5 min" \
		LINE2:load15\#ffaa00:"Load average 15 min" \
		COMMENT:"	\j" \
		COMMENT:"\j" \
		COMMENT:"	" \
		GPRINT:load15:MIN:"Load 15 min minimum\: %lf" \
		GPRINT:load15:MAX:"Load 15 min maximum\: %lf" \
		GPRINT:load15:AVERAGE:"Load 15 min average\: %lf" \
		COMMENT:"	\j" \
		COMMENT:"	" \
		COMMENT:"	\j" >/dev/null;

I want to convert it to python using the subprocess module and run similar commands but with manipulating the internal variables and parameters.

I was thinking of copying the whole command in a single python string cmd_str then run

subprocess.run(cmd_str, shell=True)

But I'm not on the best way to escape all those internal quotes and other special symbols.
Any suggestions?