@Nullable
  public static File getVirtualEnvRoot(@NotNull final String binaryPath) {
    final File bin = new File(binaryPath).getParentFile();
    if (bin != null) {
      final String rootPath = bin.getParent();
      if (rootPath != null) {
        final File root = new File(rootPath);
        final File activateThis = new File(bin, "activate_this.py");
        // binaryPath should contain an 'activate' script, and root should have bin (with us) and include and libp
        if (activateThis.exists()) {
          final File activate = findExecutableFile(bin, "activate");
          if (activate != null) {
            return root;
          }
        }
        // Python 3.3 virtualenvs can be found as described in PEP 405
        if (new File(root, "pyvenv.cfg").exists()) {
          return root;
        }
      }
    }
    return null;
  }
@Nullable
  public static File getVirtualEnvRoot(@NotNull final String binaryPath)