public static Collection<String> appendSystemEnvPaths(@NotNull Collection<String> pythonPath, String envname) {
    String syspath = System.getenv(envname);
    if (syspath != null) {
      pythonPath.addAll(Lists.newArrayList(syspath.split(File.pathSeparator)));
    }
    return pythonPath;
  }
public static Collection<String> appendSystemEnvPaths(@NotNull Collection<String> pythonPath, String envname)