django app Heroku itme "Psycopg2.extensions adında bir modül yok"

Question

Ben bir django app heroku itmek ve heroku veya stackoverflow forumlarda herhangi bir yerde görmedim bir hata alıyorum çalışıyorum. Ben postgres kullanıyorum.

Nereye gideceğime emin değilim; Yanlış olanı yazan hiçbir dokümanda hiçbir şey göremiyorum.

ImportError: Ana hatadır hiçbir modül adlı psycopg2.extensions

... ama Heroku yapılandırma MOTORU olarak, ben onun tarafından nasıl bilmiyorum kuruyor biridir .

Heroku ile sohbetim emin olmak için, Postgres'e

bilen

$ heroku addons:add heroku-postgresql:dev 
Adding heroku-postgresql:dev on morning-crag-1585... done, v24 (free) 
Attached as HEROKU_POSTGRESQL_OLIVE_URL 
Database has been created and is available 
! This database is empty. If upgrading, you can transfer 
! data from another database with pgbackups:restore. 
. 
Use `heroku addons:docs heroku-postgresql:dev` to view documentation. 
$ heroku pg:wait 
$ heroku config | grep HEROKU_POSTGRESQL 
HEROKU_POSTGRESQL_OLIVE_URL: postgres://<blah-blah-blah>@ec2-<ip-address>.compute-1.amazonaws.com:5432/<blah-blah> 
$ heroku pg:promote HEROKU_POSTGRESQL_OLIVE_URL 
Promoting HEROKU_POSTGRESQL_OLIVE_URL to DATABASE_URL... done 

Benim requirements.txt:

Django==1.4.2 
wsgiref==0.1.2 
dj-database-url==0.2.1 

benim settings.py A pasajı:

print "Got here before!\n" 
try: 
    import dj_database_url 
    DATABASES = { 'default': dj_database_url.config(default='postgres://localhost') } 
except: 
    print "Unexpected error:", sys.exc_info() 

print DATABASES 

Ben heroku için itin, bunu heroku logs'dan aldım:

heroku[slugc]: Slug compilation finished 
heroku[web.1]: Starting process with command `python ./manage.py runserver 0.0.0.0:30550 --noreload` 
app[web.1]: Got here before! 
app[web.1]: 
app[web.1]: {'default': {'ENGINE': 'django.db.backends.postgresql_psycopg2', 'NAME': '<blah blah>', 'HOST': 'ec2-<iip-address>.compute-1.amazonaws.com', 'USER': '<blah blah>', 'PASSWORD': '<blah>', 'PORT': 5432}} 
app[web.1]: 
app[web.1]: Validating models... 
app[web.1]: Traceback (most recent call last): 
app[web.1]: File "./manage.py", line 10, in <module> 
app[web.1]:  execute_from_command_line(sys.argv) 
app[web.1]:  utility.execute() 
app[web.1]:  self.execute(*args, **options.__dict__) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv 
app[web.1]:  self.fetch_command(subcommand).run_from_argv(self.argv) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/base.py", line 232, in execute 
app[web.1]:  self.inner_run(*args, **options) 
app[web.1]:  self.validate(display_num_errors=True) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 91, in inner_run 
app[web.1]:  num_errors = get_validation_errors(s, app) 
app[web.1]:  self.run(*args, **options) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line 92, in __getitem__ 
app[web.1]:  output = self.handle(*args, **options) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/validation.py", line 23, in get_validation_errors 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module 
app[web.1]:  from django.db import models, connection 
app[web.1]:  return import_module('.base', backend_name) 
app[web.1]:  __import__(name) 
app[web.1]: ImportError: No module named psycopg2.extensions 
app[web.1]:  return getattr(connections[DEFAULT_DB_ALIAS], item) 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/creation.py", line 1, in <module> 
app[web.1]:  backend = load_backend(db['ENGINE']) 
app[web.1]:  import psycopg2.extensions 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/__init__.py", line 40, in <module> 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 69, in handle 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 80, in run 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line 24, in load_backend 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__ 
app[web.1]:  backend = load_backend(connection.settings_dict['ENGINE']) 
app[web.1]:  from django.db.backends.postgresql_psycopg2.creation import DatabaseCreation 
app[web.1]: File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 13, in <module> 
heroku[web.1]: Process exited with status 1 
heroku[web.1]: State changed from starting to crashed 

Answer 1

psycopg2 kurulumunu requirements.txt dosyanıza eklemeniz gerekmektedir. Bu veritabanı bağdaştırıcısı - python PostgreSQL ile arabirim yoludur, çünkü gerçekten heroku yaptığı için yüklemeniz gerekmez.

psycopg2==2.4.4 numaralı satırı requirements.txt dosyanıza ekleyin. Bu arada, veritabanı eklenti eklentisinin kendisi gerekli değildir. dj-database-url otomatik olarak ilgilenir. Adım adım kılavuz için heroku docs'a bakın.