在 GCP 上部署 OpenLiteSpeed django 解决方案时出现“ModuleNotFoundError(”No module named 'MySQLdb'“,)”

Question

我正在测试谷歌云平台，我在谷歌计算引擎上部署了一个带有 Ubuntu VM 的 OpenLiteSpeed Django 解决方案。 部署后，一切都像一个魅力，我能够到达“你好，世界”起始页面。

当我尝试通过将/usr/local/lsws/Example/html/demo/app中的views.py文件更改为：

import MySQLdb
from django.shortcuts import render
from django.http import HttpResponse


def getFromDB():
    data = []
    db = MySQLdb.connect(host="ip",
                      user="user",
                      passwd="pw",
                      db="db")
    cur = db.cursor()
    cur.execute("SELECT * FROM table")
    for student in students:
        data.append(student)
    return data


def index(request):
    return HttpResponse(getFromDB)

并再次访问 IP 我遇到了以下回溯和错误：

Environment:


Request Method: GET
Request URL: http://ip/

Django Version: 3.0.3
Python Version: 3.6.9
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/core/handlers/base.py", line 100, in _get_response
    resolver_match = resolver.resolve(request.path_info)
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/urls/resolvers.py", line 544, in resolve
    for pattern in self.url_patterns:
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/urls/resolvers.py", line 588, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lsws/Example/html/lib/python3.6/site-packages/django/urls/resolvers.py", line 581, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/local/lsws/Example/html/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
    <source code not available>
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
    <source code not available>
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
    <source code not available>
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
    <source code not available>
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
    <source code not available>
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    <source code not available>
  File "/usr/local/lsws/Example/html/demo/demo/urls.py", line 18, in <module>
    from app import views
  File "/usr/local/lsws/Example/html/demo/app/views.py", line 1, in <module>
    import MySQLdb

Exception Type: ModuleNotFoundError at /
Exception Value: No module named 'MySQLdb'

我尝试在/usr/bin目录中运行./pip3 install mysqlclient以及sudo apt install python3-dev和sudo apt install libmysqlclient-dev ，但没有成功。 有人能帮忙吗？ 我是使用应用程序的新手。

更新：所以，通过尝试一堆不同的东西，我终于通过 cd'ing 进入/usr/bin并执行sudo -H./pip3 install mysqlclient来解决问题。 我不完全确定为什么在执行./pip3 install mysqlclient时它没有给我任何权限错误 - 但是现在问题已解决。

Answer 1

是否安装了 MySQLdb？ 进入 pip3 list 看到了吗？

我在文档中看到建议是像这样导入 MySQLdb。

from MySQLdb import _mysql

https://mysqlclient.readthedocs.io/user_guide.html