python-如何在Heroku上启动已经制作好的Django应用

我已经制作了一个在服务器上运行的django应用.我现在想使用heroku在网络上启动它,但是我发现的所有教程都使您开始了一个全新的项目.我不知道该怎么做才能将我现有的django项目更新为与heroku一起使用.

现在,我的文件的组织方式如下：

in hcp:
       crunchWeb:
                 crunchWeb: files = _init_.py ; settings.py ; urls.py ; wsgi.py
                 crunchApp: files = _init_.py ; admin.py ; models.py ; views.py etc...
                 manage.py
                 sqlite3.db

       env: folders= bin ; helloflask ; include ; lib #all of these were created automatically 
       templates:  all my .html files

我想知道heroku教程(https://devcenter.heroku.com/articles/django#using-a-different-wsgi-server)中需要执行的命令以及可以跳过的命令.

我还想知道执行所有命令时需要放在哪个文件夹中

谢谢！

2012-09-06T21:44:52+00:00 app[web.1]:   File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
2012-09-06T21:44:52+00:00 app[web.1]:   File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line 92, in __getitem__
2012-09-06T21:44:52+00:00 app[web.1]:     return getattr(connections[DEFAULT_DB_ALIAS], item)
2012-09-06T21:44:52+00:00 app[web.1]:     backend = load_backend(db['ENGINE'])
2012-09-06T21:44:52+00:00 app[web.1]:   File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line 24, in load_backend
2012-09-06T21:44:52+00:00 app[web.1]:     return import_module('.base', backend_name)
2012-09-06T21:44:52+00:00 app[web.1]:   File "/app/.heroku/venv/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
2012-09-06T21:44:52+00:00 app[web.1]:     __import__(name)
2012-09-06T21:44:52+00:00 app[web.1]:   File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 31, in <module>
2012-09-06T21:44:52+00:00 app[web.1]:     raise ImproperlyConfigured("Error loading either pysqlite2 or sqlite3 modules (tried in that order): %s" % exc)
2012-09-06T21:44:52+00:00 app[web.1]: django.core.exceptions.ImproperlyConfigured: Error loading either pysqlite2 or sqlite3 modules (tried in that order): No module named _sqlite3
2012-09-06T21:44:54+00:00 heroku[web.1]: Process exited with status 1
2012-09-06T21:44:54+00:00 heroku[web.1]: State changed from starting to crashed
2012-09-06T21:44:54+00:00 heroku[web.1]: State changed from crashed to starting
2012-09-06T21:44:58+00:00 heroku[web.1]: Starting process with command `python ./manage.py runserver 0.0.0.0:57395 --noreload`
2012-09-06T21:44:59+00:00 app[web.1]:   File "./manage.py", line 10, in <module>

settings.py

 # Django settings for crunchWeb project.
import dj_database_url

DEBUG = True
TEMPLATE_DEBUG = DEBUG

ADMINS = (
# ('Your Name', 'your_email@example.com'),
)

MANAGERS = ADMINS

DATABASES = {'default': dj_database_url.config(default='postgres://localhost')}

# {
#     'default': {
#         'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
#         'NAME': '/Users/Santi/hcp/crunchWeb/sqlite3.db',                      # Or path to database file if using sqlite3.
#         'USER': '',                      # Not used with sqlite3.
#         'PASSWORD': '',                  # Not used with sqlite3.
#         'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
#         'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
#     }
# }

解决方法:

直接从方向https://devcenter.heroku.com/articles/django开始,再次阅读说明并按照说明进行操作,您将执行：

$pip install Django psycopg2 dj-database-url

数据库设置

接下来,配置应用程序以使用Heroku的Postgres数据库.安装的dj-database-url模块将自动从env执行所有操作.

将以下内容添加到您的settings.py中：

import dj_database_url
DATABASES = {'default': dj_database_url.config(default='postgres://localhost')}

您可以在settings.py的末尾添加这些行,以继续在本地使用sql lite,并且仅在heroku上使用postgres.

settings.py
------------------------
import dj_database_url
import os
if os.getcwd() == "/app":
    DATABASES = {'default': dj_database_url.config(default='postgres://localhost')}

标签：heroku,python,django
来源： https://codeday.me/bug/20191127/2076061.html