code: def get_qemu_version(qemu_path):
          
  
          if sys.platform.startswith("win"):
              # Qemu on Windows doesn't return anything with parameter -version
              # look for a version number in version.txt file in the same directory instead
              version_file = os.path.join(os.path.dirname(qemu_path), "version.txt")
              if os.path.isfile(version_file):
                  try:
                      with open(version_file, "rb") as file:
                          version = file.read().decode("utf-8").strip()
                          match = re.search("[0-9\.]+", version)
                          if match:
                              return version
                  except (UnicodeDecodeError, OSError) as e:
                      log.warn("could not read {}: {}".format(version_file, e))
              return ""
          else:
              try:
                  output = yield from subprocess_check_output(qemu_path, "-version")
                  match = re.search("version\s+([0-9a-z\-\.]+)", output)
                  if match:
                      version = match.group(1)
                      return version
                  else:
                      raise QemuError("Could not determine the Qemu version for {}".format(qemu_path))
              except subprocess.SubprocessError as e:
                  raise QemuError("Error while looking for the Qemu version: {}".format(e))
docs: Gets the Qemu version.
  
          :param qemu_path: path to Qemu executable.