在Heroku上开始使用Python - 找不到pg_config可执行文件 [英] Getting Started with Python on Heroku - pg_config executable not found

问题描述

我一直在关注文档，直到安装requirements.txt文件。尝试安装第6行psycopg2 == 2.5.3时总会失败。这是消息 -

 下载/解包psycopg2 == 2.5.3（from -r requirements.txt（line 6）） 
下载psycopg2-2.5.3.tar.gz（690kB）：690kB已下载
运行setup.py（路径：/ Users / pimpc / Sites / python / herokudemo / python-getting-started / venv / build / psycopg2 / setup.py）egg_info for package psycopg2 
 
错误：未找到pg_config可执行文件。 
 
请将包含pg_config的目录添加到PATH 
中，或者使用以下选项指定完整的可执行文件路径：
 
 python setup.py build_ext --pg-config / path / to / pg_config构建... 
 
或使用'setup.cfg'中的pg_config选项。 
完成python的输出setup.py egg_info：
正在运行egg_info 
 
创建pip-egg-info / psycopg2.egg -info 
 
写入pip -egg-info / psycopg2.egg-info / PKG-INFO 
 
将顶级名称写入
 pip-egg-info / psycopg2.egg-info / top_level.txt 
 
写作dependency_links to 
 pip-egg-info / psycopg2.egg-info / dependency_links.txt 
 
写作清单文件'pip-egg-info / psycopg2.egg-info /SOURCES.txt'
 
警告：manifest_maker：标准文件'-c'未找到
 
 
 
错误：未找到pg_config可执行文件。 
 
 
 
请将包含pg_config的目录添加到PATH中，或者使用以下选项指定完整的可执行文件路径：
 
 
 
 python setup.py build_ext --pg-config / path / to / pg_config build ... 
 
 
 
或'setup.cfg'中的pg_config选项。 
  

当然，我在此找到了几篇文章。所以我开始检查一些东西。我相信mac的postgres应用程序带有psycopg2。我有postgres添加到我的路径和终端运行echo $ PATH检查。我没有任何其他旧版本冲突。和postgres文档说我应该把它添加到我的路径中 -

$ b

export PATH =/ Applications / Postgres.app / Contents /版本/ 9.3 / bin：$ PATH：$ PATH

我已重新启动postgres应用程序，取消激活并重新启动虚拟env，无论如何，同样的错误。

我可能会忽略什么？我已阅读并阅读这里的其他帖子，甚至是关于这个问题的博客。

解决方案

在阅读了许多人都用postgres mac应用程序发现的相同错误之后。我决定通过brew安装postgres，现在一切正常。

I have been following the documentation until I got to the point of installing the requirements.txt file. It always fails when trying to install line 6 "psycopg2==2.5.3". Here is the message -

Downloading/unpacking psycopg2==2.5.3 (from -r requirements.txt (line 6))
Downloading psycopg2-2.5.3.tar.gz (690kB): 690kB downloaded
Running setup.py (path:/Users/pimpc/Sites/python/herokudemo/python-getting-started/venv/build/psycopg2/setup.py) egg_info for package psycopg2

Error: pg_config executable not found.

Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:

    python setup.py build_ext --pg-config /path/to/pg_config build ...

or with the pg_config option in 'setup.cfg'.
Complete output from command python setup.py egg_info:
running egg_info

creating pip-egg-info/psycopg2.egg-info

writing pip-egg-info/psycopg2.egg-info/PKG-INFO

writing top-level names to
pip-egg-info/psycopg2.egg-info/top_level.txt

writing dependency_links to
pip-egg-info/psycopg2.egg-info/dependency_links.txt

writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'

warning: manifest_maker: standard file '-c' not found



Error: pg_config executable not found.



Please add the directory containing pg_config to the PATH or specify the full executable path with the option:



 python setup.py build_ext --pg-config /path/to/pg_config build ...



or with the pg_config option in 'setup.cfg'.

Of course I found several posts on this. So I started checking things. I believe that postgres app for mac comes with psycopg2. I do have postgres added to my path and checked in terminal running "echo $PATH". I do not have any other old versions conflicting. And postgres documentation says I should have it added to my path like this -

export PATH="/Applications/Postgres.app/Contents/Versions/9.3/bin:$PATH:$PATH"

I have restarted postgres app, deactivated and restarted virtual env and I get the same error no matter what.

What could I possibly be overlooking! I have read and read other posts on here, and even blogs covering this issue.

解决方案

After reading dozens of the same errors people were all having with the postgres mac app. I decided to install postgres via brew and now it all works just fine.

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