title: I have installed the `mysqlclient`, why there still get Did you install mysqlclient or MySQL-python? issue
body: <p>I have installed the <code>mysqlclient</code> in pip3, but I still get this error when I run <code>uwsgi --ini uwsgi</code>: </p>
  
  <pre><code>*** Operational MODE: threaded ***
  django.setup()
  Traceback (most recent call last):
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/backends/mysql/base.py", line 26, in &lt;module&gt;
      import MySQLdb as Database
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/MySQLdb/__init__.py", line 19, in &lt;module&gt;
      import _mysql
  ImportError: No module named '_mysql'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "myProject/wsgi.py", line 19, in &lt;module&gt;
      django.setup()
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/__init__.py", line 27, in setup
      apps.populate(settings.INSTALLED_APPS)
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/apps/registry.py", line 108, in populate
      app_config.import_models()
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/apps/config.py", line 202, in import_models
      self.models_module = import_module(models_module_name)
    File "/usr/local/Python3/lib/python3.5/importlib/__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 986, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 969, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 958, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 673, in _load_unlocked
    File "&lt;frozen importlib._bootstrap_external&gt;", line 665, in exec_module
    File "&lt;frozen importlib._bootstrap&gt;", line 222, in _call_with_frames_removed
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/contrib/auth/models.py", line 4, in &lt;module&gt;
      from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/contrib/auth/base_user.py", line 52, in &lt;module&gt;
      class AbstractBaseUser(models.Model):
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/models/base.py", line 124, in __new__
      new_class.add_to_class('_meta', Options(meta, app_label))
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/models/base.py", line 331, in add_to_class
      value.contribute_to_class(cls, name)
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/models/options.py", line 214, in contribute_to_class
      self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/__init__.py", line 33, in __getattr__
      return getattr(connections[DEFAULT_DB_ALIAS], item)
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/utils.py", line 211, in __getitem__
      backend = load_backend(db['ENGINE'])
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/utils.py", line 115, in load_backend
      return import_module('%s.base' % backend_name)
    File "/usr/local/Python3/lib/python3.5/importlib/__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "/home/ldl/repo/myProject/venv/lib/python3.5/site-packages/django/db/backends/mysql/base.py", line 30, in &lt;module&gt;
      'Did you install mysqlclient or MySQL-python?' % e
  django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named '_mysql'.
  Did you install mysqlclient or MySQL-python?
  unable to load app 0 (mountpoint='') (callable not found or import error)
  *** no app loaded. going in full dynamic mode ***
  *** uWSGI is running in multiple interpreter mode ***
  spawned uWSGI master process (pid: 21336)
  spawned uWSGI worker 1 (pid: 21338, cores: 20)
  spawned uWSGI http 1 (pid: 21339)
  </code></pre>
  
  <p>we can see the package in my <code>site-packages</code>:</p>
  
  <p><a href="https://i.stack.imgur.com/WKTkM.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WKTkM.jpg" alt="enter image description here"></a></p>
  
  <p>Why I still get this issue?</p>
  
  <hr>
  
  <p><strong>EDIT-1</strong></p>
  
  <p>When I use <code>python3 manage.py runserver</code> this works fine.</p>