use IPC::Run3 'run3';

my @command = ('/path/to/python3.7','/path/to/script.py');

my $ret = do {
	delete local $ENV{LD_LIBRARY_PATH};
	my $r;
	run3 \@command, undef, \$r, \$r or die "run3 failed";
	die "command failed, \$?=$?" if $?;
	$r };