x.py: Support systems with only python3 not python#98474
Merged
bors merged 1 commit intorust-lang:masterfrom Jun 26, 2022 
Merged
x.py: Support systems with only `python3` not `python`#98474bors merged 1 commit intorust-lang:masterfrom 
bors merged 1 commit intorust-lang:masterfrom