apt-get install python3-venv

ml-agents/tests/yamato/yamato_utils.py

         venv_path += "_" + mlagents_python_version
 
     # Set up the venv and install mlagents
+    if platform == "linux":
+        subprocess.check_call("apt-get install python3-venv", shell=True)
+
     subprocess.check_call(f"python3 -m venv {venv_path}", shell=True)
     pip_commands = ["--upgrade pip", "--upgrade setuptools"]
     if mlagents_python_version: