我有一个django应用程序，其中包括sklearn，熊猫和numpy库。我可以在不使用virtualenv的情况下运行它，但是当我在virtualenv中运行它时，我得到了他的错误。我在Ubuntu上使用Python3.8。我只想使用virtualenv轻松管理我的软件包。我使用PyCharm在virtualenv中重新安装了软件包。我的错误也包括对joblib库的引用。
我找不到任何解决方案：
Matching for file changes with StatReloader
Performing system checks...
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
self.run()
File "/usr/lib/python3.8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/utils/autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/core/management/commands/runserver.py", line 118, in inner_run
self.check(display_num_errors=True)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/core/management/base.py", line 392, in check
all_issues = checks.run_checks(
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/core/checks/registry.py", line 70, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/urls/resolvers.py", line 408, in check
for pattern in self.url_patterns:
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/urls/resolvers.py", line 589, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/urls/resolvers.py", line 582, in urlconf_module
return import_module(self.urlconf_name)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/suat/Belgeler/github/turnusol/turnusolwebproject/urls.py", line 31, in <module>
path('factomat', include('factomat.urls')),
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/suat/Belgeler/github/turnusol/factomat/urls.py", line 2, in <module>
from . import views
File "/home/suat/Belgeler/github/turnusol/factomat/views.py", line 13, in <module>
from sklearn.externals import joblib
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/__init__.py", line 119, in <module>
from .parallel import Parallel
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/parallel.py", line 28, in <module>
from ._parallel_backends import (FallbackToBackend, MultiprocessingBackend,
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/_parallel_backends.py", line 22, in <module>
from .executor import get_memmapping_executor
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/executor.py", line 14, in <module>
from .externals.loky.reusable_executor import get_reusable_executor
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/loky/__init__.py", line 12, in <module>
from .backend.reduction import set_loky_pickler
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/loky/backend/reduction.py", line 125, in <module>
from sklearn.externals.joblib.externals import cloudpickle # noqa: F401
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/__init__.py", line 3, in <module>
from .cloudpickle import *
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py", line 167, in <module>
_cell_set_template_code = _make_cell_set_template_code()
File "/home/suat/Belgeler/github/turnusol/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py", line 148, in _make_cell_set_template_code
return types.CodeType(
TypeError: an integer is required (got type bytes)
答案 0 :(得分：1)
您似乎遇到了a known issue with Python 3.8 and cloudpickle following changes in PEP 570。
the cloudpickle Github repo尚不清楚它是否支持Python 3.8，因此潜在的解决方法可能是在virtualenv中使用Python 3.7。