django 工程放到线上机器，出现 ModuleNotFoundError: No module named 'utils' 问题

django 工程，使用 virtualenv，创建了一个 app

写了一个 utils.py 在 views 引用了 utils, 我在 pycharm 下面做的开发。 本地都 OK，但是放到开发机器上面，在启动环节就出错。

gunicorn mybook.wsgi 运行时候出错 python3 manger runserver 启动时候出错

错误都是一样，很不解

python3 manage.py runserver
Performing system checks...



Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7fb2b2a27400>

File "/home/admin/work/mybook/.env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/admin/work/mybook/app/urls.py", line 3, in <module>
    from scan import views
  File "/home/admin/work/mybook/app/views.py", line 5, in <module>
    import utils
ModuleNotFoundError: No module named 'utils'

├── README.md
├── mybook
│   ├── __init__.py
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
├── manage.py
├── requirements.txt
└── app
    ├── __init__.py
    ├── admin.py
    ├── apps.py
    ├── editor.py
    ├── models.py
    ├── serializers.py
    ├── sheet.py
    ├── tests.py
    ├── uploader.py
    ├── urls.py
    ├── utils.py
    └── views.py