Django Google App Engine：502 Bad Gateway，无法识别已安装的包
Django Google App Engine: 502 Bad Gateway, already installed package not recognized
我正在 Google App Engine 中部署 Django。
我收到 502 Bad Gateway 并且在日志中收到以下错误：
2021-03-08 12:08:18 default[20210308t130512] Traceback (most recent call last): File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/arbiter.py", line 583, in spawn_worker worker.init_process() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/gthread.py", line 92, in init_process super().init_process() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/base.py", line 119, in init_process self.load_wsgi() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/base.py", line 144, in load_wsgi self.wsgi = self.app.wsgi() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/base.py", line 67, in wsgi self.callable = self.load() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 49, in load return self.load_wsgiapp() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 39, in load_wsgiapp return util.import_app(self.app_uri) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/util.py", line 358, in import_app mod = importlib.import_module(module) File "/opt/python3.9/lib/python3.9/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 1030, in _gcd_import File "", line 1007, in _find_and_load File "", line 986, in _find_and_load_unlocked File "", line 680, in _load_unlocked File "", line 790, in exec_module File "", line 228, in _call_with_frames_removed File "/srv/main.py", line 1, in from django_project.wsgi import application File "/srv/django_project/wsgi.py", line 16, in application = get_wsgi_application() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application django.setup(set_prefix=False) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/init.py", line 19, in setup configure_logging(settings.LOGGING_CONFIG, settings.LOGGING) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 82, in getattr self._setup(name) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 69, in _setup self._wrapped = Settings(settings_module) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 170, in init mod = importlib.import_module(self.SETTINGS_MODULE) File "/opt/python3.9/lib/python3.9/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "/srv/django_project/settings.py", line 84, in import pymysql # noqa: 402 ModuleNotFoundError: No module named 'pymysql'
问题是我已经安装了 pymysql，实际上如果我 运行 pip3 install pymysql，我会得到 Requirement already satisfied: ...
这是为什么？
提前致谢！
编辑：
这里是requirements.txt：
asgiref==3.3.1
attrs==20.3.0
Automat==20.2.0
certifi==2020.12.5
cffi==1.14.4
chardet==4.0.0
constantly==15.1.0
cryptography==3.4.1
cssselect==1.1.0
Django==3.1.6
django-phonenumber-field==5.0.0
django-widget-tweaks==1.4.8
hyperlink==21.0.0
idna==2.10
incremental==17.5.0
instaloader==4.6.1
itemadapter==0.2.0
itemloaders==1.0.4
jmespath==0.10.0
jsonfield==3.1.0
lxml==4.6.2
parsel==1.6.0
phonenumberslite==8.12.18
progress==1.5
Protego==0.1.16
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.20
PyDispatcher==2.0.5
PyHamcrest==2.0.2
pyOpenSSL==20.0.1
pytz==2021.1
queuelib==1.5.0
requests==2.25.1
schedule==0.6.0
Scrapy==2.4.1
semantic-version==2.8.5
service-identity==18.1.0
setuptools-rust==0.11.6
six==1.15.0
sqlparse==0.4.1
toml==0.10.2
urllib3==1.26.3
w3lib==1.22.0
zope.interface==5.2.0
如果您 运行 pip3 install pymysql 在您的本地计算机上，这并不意味着当您部署应用程序时，此模块已打包。事实上，GAE 会尝试在构建时使用您的 requirements.txt 文件安装所有内容，因此您是否在 PC 中安装了所有内容都没有关系，因为 GAE 不会使用您在本地拥有的内容（谈论使用 [=12 安装的软件包） =]).
正在检查您的 requirements.txt 文件，我没有看到添加了软件包 PyMySQL。您应该将它添加到该文件并尝试再次部署。
“pymysql”包丢失（未安装）根据您的错误信息如下：
ModuleNotFoundError: No module named 'pymysql'
所以，你需要运行下面这个命令来安装"pymysql":
pip install pymysql
我正在 Google App Engine 中部署 Django。
我收到 502 Bad Gateway 并且在日志中收到以下错误：
2021-03-08 12:08:18 default[20210308t130512] Traceback (most recent call last): File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/arbiter.py", line 583, in spawn_worker worker.init_process() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/gthread.py", line 92, in init_process super().init_process() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/base.py", line 119, in init_process self.load_wsgi() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/workers/base.py", line 144, in load_wsgi self.wsgi = self.app.wsgi() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/base.py", line 67, in wsgi self.callable = self.load() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 49, in load return self.load_wsgiapp() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 39, in load_wsgiapp return util.import_app(self.app_uri) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/gunicorn/util.py", line 358, in import_app mod = importlib.import_module(module) File "/opt/python3.9/lib/python3.9/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 1030, in _gcd_import File "", line 1007, in _find_and_load File "", line 986, in _find_and_load_unlocked File "", line 680, in _load_unlocked File "", line 790, in exec_module File "", line 228, in _call_with_frames_removed File "/srv/main.py", line 1, in from django_project.wsgi import application File "/srv/django_project/wsgi.py", line 16, in application = get_wsgi_application() File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application django.setup(set_prefix=False) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/init.py", line 19, in setup configure_logging(settings.LOGGING_CONFIG, settings.LOGGING) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 82, in getattr self._setup(name) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 69, in _setup self._wrapped = Settings(settings_module) File "/layers/google.python.pip/pip/lib/python3.9/site-packages/django/conf/init.py", line 170, in init mod = importlib.import_module(self.SETTINGS_MODULE) File "/opt/python3.9/lib/python3.9/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "/srv/django_project/settings.py", line 84, in import pymysql # noqa: 402 ModuleNotFoundError: No module named 'pymysql'
问题是我已经安装了 pymysql，实际上如果我 运行 pip3 install pymysql，我会得到 Requirement already satisfied: ...
这是为什么？ 提前致谢！
编辑：
这里是requirements.txt：
asgiref==3.3.1
attrs==20.3.0
Automat==20.2.0
certifi==2020.12.5
cffi==1.14.4
chardet==4.0.0
constantly==15.1.0
cryptography==3.4.1
cssselect==1.1.0
Django==3.1.6
django-phonenumber-field==5.0.0
django-widget-tweaks==1.4.8
hyperlink==21.0.0
idna==2.10
incremental==17.5.0
instaloader==4.6.1
itemadapter==0.2.0
itemloaders==1.0.4
jmespath==0.10.0
jsonfield==3.1.0
lxml==4.6.2
parsel==1.6.0
phonenumberslite==8.12.18
progress==1.5
Protego==0.1.16
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.20
PyDispatcher==2.0.5
PyHamcrest==2.0.2
pyOpenSSL==20.0.1
pytz==2021.1
queuelib==1.5.0
requests==2.25.1
schedule==0.6.0
Scrapy==2.4.1
semantic-version==2.8.5
service-identity==18.1.0
setuptools-rust==0.11.6
six==1.15.0
sqlparse==0.4.1
toml==0.10.2
urllib3==1.26.3
w3lib==1.22.0
zope.interface==5.2.0
如果您 运行 pip3 install pymysql 在您的本地计算机上，这并不意味着当您部署应用程序时，此模块已打包。事实上，GAE 会尝试在构建时使用您的 requirements.txt 文件安装所有内容，因此您是否在 PC 中安装了所有内容都没有关系，因为 GAE 不会使用您在本地拥有的内容（谈论使用 [=12 安装的软件包） =]).
正在检查您的 requirements.txt 文件，我没有看到添加了软件包 PyMySQL。您应该将它添加到该文件并尝试再次部署。
“pymysql”包丢失（未安装）根据您的错误信息如下：
ModuleNotFoundError: No module named 'pymysql'
所以，你需要运行下面这个命令来安装"pymysql":
pip install pymysql