TypeError: join() argument must be str or bytes, not ‘PosixPath‘

在使用python3 manage.py migrate进行数据库迁移时报错如下：
（进行操作python3 manage.py runserver或者python3 manage.py migrate等一系列的围绕manage.py的操作时，可能会出现下面的错误。）

[email protected]:/var/www/djangoProject11# python3 manage.py migrate
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 308, in execute
    settings.INSTALLED_APPS
  File "/usr/local/lib/python3.5/dist-packages/django/conf/__init__.py", line 56, in __getattr__
    self._setup(name)
  File "/usr/local/lib/python3.5/dist-packages/django/conf/__init__.py", line 41, in _setup
    self._wrapped = Settings(settings_module)
  File "/usr/local/lib/python3.5/dist-packages/django/conf/__init__.py", line 110, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 665, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "/var/www/djangoProject11/djangoProject11/settings.py", line 132, in <module>
    os.path.join(BASE_DIR,'static'),
  File "/usr/lib/python3.5/posixpath.py", line 89, in join
    genericpath._check_arg_types('join', a, *p)
  File "/usr/lib/python3.5/genericpath.py", line 143, in _check_arg_types
    (funcname, s.__class__.__name__)) from None
TypeError: join() argument must be str or bytes, not 'PosixPath'

这是因为setting.py里面的问题，从而导致其他文件出现错误。

---

在运行代码前
我的setting.py里面的导致错误的内容如下：

from pathlib import Path
import os

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
......
......


STATIC_URL = ‘/static/’
STATIC_ROOT=os.path.join(BASE_DIR,"/static/")

STATICFILES_DIRS = (
	os.path.join(BASE_DIR,‘static’),
)

---

对其进行修改

from pathlib import Path
import os

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
......
......
STATIC_URL = ‘/static/’
STATIC_ROOT=BASE_DIR.joinpath(‘static’)

STATICFILES_DIRS = (
BASE_DIR.joinpath(‘static’),
)

这个错误就解决了。
如果你的setting.py里面存在

STATIC_ROOT = ...
MEDIA_ROOT = ...

的话，把os.path.join(…,’…’)修改为BASE_DIR.joinpath(’…’)
就行了。

---

---

如果你是用的是python3.5的话(在命令行输入python -V 就可以查看python的版本)，
你可能还需要看看这一篇博客：

AttributeError: ‘PosixPath‘ object has no attribute ‘startswith‘