ii tried to import db from custom app hooks.py
from frappe import db
it is showing this error,erpnext not able to load
Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 39, in render
data = render_page_by_language(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 119, in render_page_by_language
translated_languages = frappe.get_hooks(“translated_languages_for_website”)
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 832, in get_hooks
hooks = _dict(cache().get_value(“app_hooks”, load_app_hooks))
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/redis_wrapper.py”, line 73, in get_value
self.set_value(original_key, val, user=user)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/redis_wrapper.py”, line 41, in set_value
self.set(key, pickle.dumps(val))
File “/home/frappe/frappe-bench/env/lib/python2.7/copy_reg.py”, line 77, in _reduce_ex
raise TypeError("a class that defines slots without "
TypeError: a class that defines slots without defining getstate cannot be pickled