无法在Heroku上安装辅助依赖项

Question

有没有人见过这个？下面是我自从添加新的依赖项pysendy后尝试推送到heroku时出现的输出日志。

请注意，pysendy需要模块“请求”，因此我还向requests.txt添加了请求。如果仔细查看日志顶部，您会看到请求模块已下载＆amp;在dyno启动期间解压缩，但pysendy没有看到它。我甚至尝试将'requests'放在requirements.txt的顶部，没有任何改变。 Heroku拒绝该应用程序。我可以通过手动将pysendy导入到我的项目中来解决这个问题，因为它很小，但是那种方式会让人产生依赖性。

我怀疑当pysendy尝试访问请求模块时，有关请求模块依赖项安装的内容未完成。

Requirements.txt：

requests==2.2.1

Django==1.6.2
dj-database-url==0.3.0
dj-static==0.0.5
django-toolbelt==0.0.1
djangorestframework==2.3.13
gunicorn==18.0
psycopg2==2.5.2

pysendy==0.0.3
pystache==0.5.3

static==1.0.2

输出日志：

-----> Python app detected
-----> Using Python runtime (python-3.4.0)
-----> Installing dependencies using Pip (1.5.4)
       Downloading/unpacking requests==2.2.1 (from -r requirements.txt (line 1))
       Downloading/unpacking pysendy==0.0.3 (from -r requirements.txt (line 11))
         Downloading pysendy-0.0.3.tar.gz
         Running setup.py (path:/tmp/pip_build_u37993/pysendy/setup.py) egg_info for package pysendy
           Traceback (most recent call last):
             File "<string>", line 17, in <module>
             File "/tmp/pip_build_u37993/pysendy/setup.py", line 5, in <module>
               version = __import__('pysendy').__version__
             File "/tmp/pip_build_u37993/pysendy/pysendy/__init__.py", line 2, in <module>
               from .pysendy import *
             File "/tmp/pip_build_u37993/pysendy/pysendy/pysendy.py", line 3, in <module>
               import requests
           ImportError: No module named 'requests'
           Complete output from command python setup.py egg_info:
           Traceback (most recent call last):

         File "<string>", line 17, in <module>

         File "/tmp/pip_build_u37993/pysendy/setup.py", line 5, in <module>

           version = __import__('pysendy').__version__

         File "/tmp/pip_build_u37993/pysendy/pysendy/__init__.py", line 2, in <module>

           from .pysendy import *

         File "/tmp/pip_build_u37993/pysendy/pysendy/pysendy.py", line 3, in <module>

           import requests

       ImportError: No module named 'requests'

       ----------------------------------------
       Cleaning up...
       Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_u37993/pysendy
       Storing debug log for failure in /app/.pip/pip.log

 !     Push rejected, failed to compile Python app

Answer 1

似乎pysendy在安装过程中尝试使用requests，尽管它的安装要求（请参阅https://github.com/thiagofa/pysendy/blob/master/setup.py）仍然没有安装。这显然是一个上游错误，因为它在一个干净的虚拟环境上重现。

解决方法可能是将requirements.txt与pysendy注释掉，让它完成，从而完全安装requests，然后再将完整版推送到Heroku。