Python dateutil与django冲突

问题是：导入熊猫时出错：

dateutil: No module named 'dateutil'

因此，我使用pip安装了dateutil，它已成功安装：

pip3 install python-dateutil

但当我运行django项目时，我得到了如下错误：

Watching for file changes with StatReloader
Performing system checks...

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/django/urls/resolvers.py", line 573, in url_patterns
iter(patterns)
TypeError: 'module' object is not iterable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.5/threading.py", line 862, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py", line 117, in inner_run
    self.check(display_num_errors=True)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/base.py", line 390, in check
    include_deployment_checks=include_deployment_checks,
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/base.py", line 377, in _run_checks
    return checks.run_checks(**kwargs)
  File "/usr/local/lib/python3.5/dist-packages/django/core/checks/registry.py", line 72, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/usr/local/lib/python3.5/dist-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/usr/local/lib/python3.5/dist-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/usr/local/lib/python3.5/dist-packages/django/urls/resolvers.py", line 398, in check
    for pattern in self.url_patterns:
  File "/usr/local/lib/python3.5/dist-packages/django/utils/functional.py", line 80, in __get__
res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.5/dist-packages/django/urls/resolvers.py", line 580, in url_patterns
    raise ImproperlyConfigured(msg.format(name=self.urlconf_name))
django.core.exceptions.ImproperlyConfigured: The included URLconf 'django_project.urls' does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import.

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py", line 60, in execute
    super().execute(*args, **options)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py", line 95, in handle
    self.run(**options)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py", line 102, in run
    autoreload.run_with_reloader(self.inner_run, **options)
  File "/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py", line 579, in run_with_reloader
    start_django(reloader, main_func, *args, **kwargs)
      File "/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py", line 564, in start_django
    reloader.run(django_main_thread)
  File "/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py", line 272, in run
get_resolver().urlconf_module
  File "/usr/local/lib/python3.5/dist-packages/django/utils/functional.py", line 80, in __get__
res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.5/dist-packages/django/urls/resolvers.py", line 564, in urlconf_module
    return import_module(self.urlconf_name)
  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 "/home/murphy/django_project/django_project/urls.py", line 22, in <module>
    from app1.views import IndexView, GLCView
  File "/home/murphy/django_project/apps/app1/views.py", line 15, in <module>
    import myvariant
  File "/usr/local/lib/python3.5/dist-packages/myvariant/__init__.py", line 4, in <module>
    from biothings_client import get_client
  File "/usr/local/lib/python3.5/dist-packages/biothings_client/__init__.py", line 10, in <module>
    from .base import (BiothingClient, __version__, alwayslist, caching_avail,
  File "/usr/local/lib/python3.5/dist-packages/biothings_client/base.py", line 18, in <module>
    from pandas import DataFrame
  File "/usr/local/lib/python3.5/dist-packages/pandas/__init__.py", line 55, in <module>
    from pandas.core.api import (
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/api.py", line 5, in <module>
    from pandas.core.arrays.integer import (
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/arrays/__init__.py", line 1, in <module>
    from .array_ import array  # noqa: F401
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/arrays/array_.py", line 7, in <module>
    from pandas.core.dtypes.common import (
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/dtypes/common.py", line 11, in <module>
    from pandas.core.dtypes.dtypes import (
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/dtypes/dtypes.py", line 53, in <module>
    class Registry:
  File "/usr/local/lib/python3.5/dist-packages/pandas/core/dtypes/dtypes.py", line 84, in Registry
    self, dtype: Union[Type[ExtensionDtype], str]
  File "/usr/lib/python3.5/typing.py", line 552, in __getitem__
    dict(self.__dict__), parameters, _root=True)
  File "/usr/lib/python3.5/typing.py", line 512, in __new__
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/usr/lib/python3.5/typing.py", line 512, in <genexpr>
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/usr/lib/python3.5/typing.py", line 1077, in __subclasscheck__
    if super().__subclasscheck__(cls):
  File "/usr/lib/python3.5/abc.py", line 225, in __subclasscheck__
    for scls in cls.__subclasses__():
TypeError: descriptor '__subclasses__' of 'type' object needs an argument

使用StatReloader监视文件更改
正在执行系统检查。。。
线程1中的异常：
回溯（最近一次呼叫最后一次）：
文件“/usr/local/lib/python3.5/dist-packages/django/url/resolvers.py”，第573行，url_模式
iter（模式）
TypeError:“模块”对象不可编辑
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“/usr/lib/python3.5/threading.py”，第914行，在内部引导中
self.run（）
文件“/usr/lib/python3.5/threading.py”，第862行，正在运行
自我目标（*自我参数，**自我参数）
文件“/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py”，第54行，在包装器中
fn（*args，**kwargs）
文件“/usr/local/lib/python3.5/dist packages/django/core/management/commands/runserver.py”，第117行，在内部运行
self.check（display\u num\u errors=True）
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/base.py”，第390行，选中
包括部署检查=包括部署检查，
文件“/usr/local/lib/python3.5/dist packages/django/core/management/base.py”，第377行，在运行检查中
返回检查。运行检查（**kwargs）
文件“/usr/local/lib/python3.5/dist packages/django/core/checks/registry.py”，第72行，运行检查
新建错误=检查（应用程序配置=应用程序配置）
文件“/usr/local/lib/python3.5/dist packages/django/core/checks/url.py”，第13行，在check\u url\u config中
返回检查\u分解器（分解器）
文件“/usr/local/lib/python3.5/dist packages/django/core/checks/url.py”，第23行，在check\u解析器中
返回检查方法（）
文件“/usr/local/lib/python3.5/dist-packages/django/url/resolvers.py”，第398行，选中
对于self.url_模式中的模式：
文件“/usr/local/lib/python3.5/dist-packages/django/utils/functional.py”，第80行，在__
res=instance.\uuuu dict\uuuu[self.name]=self.func（实例）
文件“/usr/local/lib/python3.5/dist packages/django/url/resolvers.py”，第580行，url_模式
raise配置不正确（msg.format（name=self.urlconf_name））
django.core.exceptions.ImpropertlyConfigured:包含的URLconf“django_project.url”中似乎没有任何模式。如果在文件中看到有效的模式，那么问题可能是由循环导入引起的。
回溯（最近一次呼叫最后一次）：
文件“manage.py”，第15行，在
从命令行（sys.argv）执行命令
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/__-init___;.py”，第381行，从命令行执行
utility.execute（）
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/__-init__.py”，执行中第375行
self.fetch_命令（子命令）。从_argv（self.argv）运行_
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/base.py”，第323行，在运行中，从
self.execute（*args，**cmd_选项）
文件“/usr/local/lib/python3.5/dist packages/django/core/management/commands/runserver.py”，第60行，在execute中
super（）.execute（*args，**选项）
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/base.py”，执行中第364行
输出=self.handle（*args，**选项）
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py”，第95行，在handle中
self.run（**选项）
文件“/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py”，第102行，运行中
自动加载。使用重新加载程序运行（self.internal运行，**选项）
文件“/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py”，第579行，运行时使用重新加载程序
start_django（重新加载程序、主功能、*args、**kwargs）
文件“/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py”，第564行，在start\u django中
运行（django_主线程）
文件“/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py”，第272行，正在运行
获取\u解析器（）.urlconf\u模块
文件“/usr/local/lib/python3.5/dist-packages/django/utils/functional.py”，第80行，在__
res=instance.\uuuu dict\uuuu[self.name]=self.func（实例）
urlconf_模块中的文件“/usr/local/lib/python3.5/dist packages/django/url/resolvers.py”，第564行
返回导入_模块（self.urlconf_名称）
文件“/usr/lib/python3.5/importlib/_init__.py”，第126行，在导入模块中
return _bootstrap._gcd_import（名称[级别：]，包，级别）
文件“”，第986行，在_gcd_import中
文件“”，第969行，在“查找”和“加载”中
文件“”，第958行，在“查找”和“加载”中解锁
文件“”，第673行，在“加载”中
exec_模块中第665行的文件“”
文件“”，第222行，在已删除帧的调用中
文件“/home/murphy/django_project/django_project/url.py”，第22行，在
从app1.views导入索引视图，GLCView
文件“/home/murphy/django_project/apps/app1/views.py”，第15行，在
导入myvariant
文件“/usr/local/lib/python3.5/dist-packages/myvariant/__-init___.py”，第4行，在
从biothings\u客户端导入获取\u客户端
文件“/usr/local/lib/python3.5/dist-packages/biothings\u-client/\uuuu-init\uuuu.py”，第10行，在
从.base导入（BiothingClient、\uuuuuu版本、alwayslist、caching\u avail、，
文件“/usr/local/lib/python3.5/dist packages/biothings\u client/base.py”，第18行，在
从导入数据帧
文件“/usr/local/lib/python3.5/dist-packages/pandas/__-init__.py”，第55行，在
从pandas.core.api导入(
文件“/usr/local/lib/python3.5/dist-packages/pandas/core/api.py”，第5行，在
从pandas.core.arrays.integer导入(
文件“/usr/local/lib/python3.5/dist-packages/pandas/core/arrays/__-init__;.py”，第1行，在
from.array_u;import array#noqa:F401
文件“/usr/local/lib/python3.5/dist-packages/pandas/core/arrays/array_uu.py”，第7行，在
从pandas.core.dtypes.common导入(
文件“/usr/local/lib/python3.5/dist-packages/pandas/core/dtypes/commo