On the Marconi Gateway can't run `simvue_sender` directly

Get lots of errors:

(simvuevenv) <g2alahif@s53 ~>simvue_sender 
/afs/eufus.eu/g2itmdev/user/g2alahif/simvuevenv/bin/simvue_sender: line 1: Send runs to server: command not found
import: unable to open X server `' @ error/import.c/ImportImageCommand/369.
import: unable to open X server `' @ error/import.c/ImportImageCommand/369.
import: unable to open X server `' @ error/import.c/ImportImageCommand/369.
import: unable to open X server `' @ error/import.c/ImportImageCommand/369.
/afs/eufus.eu/g2itmdev/user/g2alahif/simvuevenv/bin/simvue_sender: line 8: from: command not found
/afs/eufus.eu/g2itmdev/user/g2alahif/simvuevenv/bin/simvue_sender: line 9: from: command not found
/afs/eufus.eu/g2itmdev/user/g2alahif/simvuevenv/bin/simvue_sender: line 11: syntax error near unexpected token `('
/afs/eufus.eu/g2itmdev/user/g2alahif/simvuevenv/bin/simvue_sender: line 11: `logger = logging.getLogger()'

unless you use python3 simvue_sender.

从 simvue_sender 入口点开始，重现直接运行 simvue_sender 与运行 python3 simvue_sender 之间的差异。检查可执行文件是如何生成或安装的，然后验证直接调用不再将 Python 源代码发送给 shell，并产生与显式 Python 命令相同的行为。