code: def _inject_execstr(modname, import_tuples):
      if modname == 'utool':
          injecter = 'util_inject'
          injecter_import = ''
      else:
          injecter_import = 'import utool'
          injecter = 'utool'
      injectstr_fmt = textwrap.dedent(
          r'''
          {injecter_import}
          print, rrr, profile = {injecter}.inject2(__name__, '[{modname}]')
          def reassign_submodule_attributes(verbose=1):
              import sys
              if verbose and '--quiet' not in sys.argv:
                  print('dev reimport')
              import {modname}
              seen_ = set([])
              for tup in IMPORT_TUPLES:
                  if len(tup) > 2 and tup[2]:
                      continue
                  submodname, fromimports = tup[0:2]
                  submod = getattr({modname}, submodname)
                  for attr in dir(submod):
                      if attr.startswith('_'):
                          continue
                      if attr in seen_:
                          continue
                      seen_.add(attr)
                      setattr({modname}, attr, getattr(submod, attr))
          def reload_subs(verbose=1):
              if verbose:
                  print('Reloading {modname} submodules')
              rrr(verbose > 1)
              def wrap_fbrrr(mod):
                  def fbrrr(*args, **kwargs):
                      if verbose > 0:
                          print('Auto-reload (using rrr) not setup for mod=%r' % (mod,))
                  return fbrrr
              def get_rrr(mod):
                  if hasattr(mod, 'rrr'):
                      return mod.rrr
                  else:
                      return wrap_fbrrr(mod)
              def get_reload_subs(mod):
                  return getattr(mod, 'reload_subs', wrap_fbrrr(mod))
              {reload_body}
              rrr(verbose > 1)
              try:
                  reassign_submodule_attributes(verbose=verbose)
              except Exception as ex:
                  print(ex)
          rrrr = reload_subs
          ''')
      injectstr_fmt = injectstr_fmt.replace('
      injectstr_fmt = injectstr_fmt.replace('
      rrrdir_fmt  = '    get_reload_subs({modname})(verbose=verbose)'
      rrrfile_fmt = '    get_rrr({modname})(verbose > 1)'
      def _reload_command(tup):
          if len(tup) > 2 and tup[2] is True:
              return rrrdir_fmt.format(modname=tup[0])
          else:
              return rrrfile_fmt.format(modname=tup[0])
      reload_body = '\n'.join(map(_reload_command, import_tuples)).strip()
      format_dict = {
          'modname': modname,
          'reload_body': reload_body,
          'injecter': injecter,
          'injecter_import': injecter_import,
      }
      inject_execstr = injectstr_fmt.format(**format_dict).strip()
      return inject_execstr