Windows batch file for quick virtualenv creation

vmake.bat

@echo off

for /f "tokens=*" %%C in ( 'python3.9 -c "import os, re; print(re.search(r'[^\\]+$', os.getcwd(), re.M).group(0))"' ) do (
    set DIRNAME=%%C
)

if [%2]==[] (
    python%1 -m virtualenv env --prompt="(%DIRNAME%) "    
) else (
    python%1 -m virtualenv env --prompt="(%2) "
)

Variation of this.

cmd IF syntax here.

Would be better to use pathlib, but that's less concise for a one-liner.