如何安装缺失的heroku库？ [英] how to install missing heroku libraries?

问题描述

在使用 heroku创建时发生此错误。我知道sasl库需要安装，但我不知道如何将它安装在heroku上，我知道只在localhost上安装它。

  remote：gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DHAVE_SASL -DHAVE_TLS -DHAVE_LIBLDAP_R -DHAVE_LIBLDAP_R -DLDAPMODULE_VERSION = 2.4 .19 -IModules -I / opt / openldap-RE24 / include -I / usr / include / sasl -I / usr / include -I / app / .heroku / python / include / python2.7 -c Modules / LDAPObject.c -o build / temp.linux-x86_64-2.7 / Modules / LDAPObject.o 
 remote：Modules / LDAPObject.c：18：18：致命错误：sasl.h：没有这样的文件或目录
 remote ：#include< sasl.h> 
 remote：^ 
 remote：编译终止。 
 remote：error：command'gcc'failed with exit status 1 
 remote：
 remote：--------------------- ------------------- 
 remote：命令/app/.heroku/python/bin/python -cimport setuptools，tokenize; __ file __ ='/ tmp / pip-build-Q1St2s / python-ldap / setup.py'; exec（compile（getattr（tokenize，'open'，open）（__ file __）。read（）.exc（'\r\\\
'， '\\\
'），__file__，'exec'））install --record /tmp/pip-he61Ck-record/install-record.txt --single-version-external-managed -compile失败，错误代码1 in / tmp / pip-build-Q1St2s / python-ldap 
 remote：
 remote：！推送被拒绝，未能编译Python应用程序
 remote：
 remote：验证部署.... 
 remote：
 remote：！推拒绝屏蔽超越8167。 
远程：
到https://git.heroku.com/shielded-beyond-8167.git 
！ [remote rejected] master  - > master（pre-receive hook refused）
错误：未能将一些文件推送到'https://git.heroku.com/shielded-beyond-8167.git'
  
 
 
解决方案
看起来你正在尝试将一个Python应用程序部署到Heroku。对于Heroku上的Python应用程序，您需要将您的依赖项列在项目根目录下的 requirements.txt 文件中。
 
 
 
例如，如果您正在运行需要请求库的项目，那么您应该定义 requirements.txt 包含以下内容的文件
 请求== 2.7.0 
  
 
 
 
注意：您可以在笔记本电脑（通常）上自动创建一个requirements.txt文件，方法是运行： 
 
 
  $ pip freeze> requirements.txt 
  
这将自动为您创建一个requirements.txt文件，包含您的所有依赖关系= ）
 
 
 
如果在创建requirements.txt文件后仍然存在问题，则意味着您可能尝试使用尚未存在的C头文件库安装在Heroku核心图像上 - 在这种情况下，您需要创建自定义buildpack： https：/ /devcenter.heroku.com/articles/buildpacks  
 
While using heroku create this error occured. I know that sasl library needs to be installed, but I don't know, how to  install it on heroku, I know to install it only on localhost.
remote:            gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DHAVE_SASL -DHAVE_TLS -DHAVE_LIBLDAP_R -DHAVE_LIBLDAP_R -DLDAPMODULE_VERSION=2.4.19 -IModules -I/opt/openldap-RE24/include -I/usr/include/sasl -I/usr/include -I/app/.heroku/python/include/python2.7 -c Modules/LDAPObject.c -o build/temp.linux-x86_64-2.7/Modules/LDAPObject.o
remote:            Modules/LDAPObject.c:18:18: fatal error: sasl.h: No such file or directory
remote:             #include <sasl.h>
remote:                              ^
remote:            compilation terminated.
remote:            error: command 'gcc' failed with exit status 1
remote:            
remote:            ----------------------------------------
remote: Command "/app/.heroku/python/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-Q1St2s/python-ldap/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-he61Ck-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-Q1St2s/python-ldap
remote: 
remote:  !     Push rejected, failed to compile Python app
remote: 
remote: Verifying deploy....
remote: 
remote: !   Push rejected to shielded-beyond-8167.
remote: 
To https://git.heroku.com/shielded-beyond-8167.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/shielded-beyond-8167.git'

解决方案
It looks like you're trying to deploy a python application to Heroku. For Python applications on Heroku, you need to list your dependencies in a requirements.txt file in the root of your project.

For instance, if you're running a project that requires the requests library, then you'd define a requirements.txt file that contains the following
requests==2.7.0
NOTE: You can automatically create a requirements.txt file on your laptop (typically) by running:
$ pip freeze > requirements.txt
This will automatically create a requirements.txt file for you with all of your dependencies included =)

If you're still having issues after creating a requirements.txt file, it means that you're likely trying to use a C header library that hasn't been installed on the Heroku core images -- in this case, you'll need to create a custom buildpack: https://devcenter.heroku.com/articles/buildpacks

                        
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