python os.system zsh: command not found: python python packaging tools not found sudo: python: command not found failed to start embedded python fail to load python dll python os.environ failed to load python dll command not found: python python: command not found /bin/sh: python: command not found python os.getenv python extension packages for windows download python install manager python os.sep failed to install python install python packages sys.dm_exec_requests python system 计算机丢失libprotobuf.dll python sys.stdout python mcp client apt install python python sys.stdin python sys.exit python sys.path python sys模块
