python调用命令行

python调用CLI

• CLI = Command Line Interface, 即命令行
• 方法有很多, 通用性和安全性最好的就是subprocess.Popen这个方法. 见文档
  • Subprocess management
  • os.popen
  • Utilities for running commands
• example:

import logging
from subprocess import Popen, PIPE


# CLI: Command Line Interface
def runCLI():
    # __cmd_link = self.cur_dir + "\\stlink_cli\\ST-LINK_CLI.exe -c SWD SWJCLK=5 UR"
    __cmd_link = "dir"

    # 多用 shell=True. shell=False只能运行bat文件或直接在终端中执行. 此例中显示的内容也会有区别
    _pp = Popen(__cmd_link, shell=True, stdout=PIPE, stderr=PIPE)
    out, err = _pp.communicate()

    logging.debug("cmd > " + __cmd_link)
    logging.debug("out > " + out.rstrip())
    logging.debug("err > " + err.rstrip())
    return _pp.returncode


if __name__ == "__main__":
    logging.basicConfig(level=logging.DEBUG)
    logging.debug(runCLI())

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原创于 DRA&PHO