部署到AWS时无效的requirements.txt。 PIP无法安装lxml [英] Invalid requirements.txt on deploying to AWS. Pip couldn't install lxml

问题描述

将Flask应用程序部署到AWS EC2实例时遇到问题。可能用 pip 安装 lxml 。但是我不知道该如何解决这个问题。

AWS EC2：

  b $ p 
 $ b 
从 eb create ： 
 
 
  CalledProcessError：Command'/ opt / python / run / venv / bin / pip install -r /opt/python/ondeck/app/requirements.txt'返回非零退出状态1. 
  
来自日志： 
 
 
  src / lxml / lxml.etree.c：200873：error：'XML_XPATH_INVALID_ARITY '未声明（首次在此函数中使用）
 src / lxml / lxml.etree.c：200883：错误：'XML_XPATH_INVALID_CTXT_SIZE'未声明（首次在此函数中使用）
 src / lxml / lxml.etree。 c：200893：error：'XML_XPATH_INVALID_CTXT_POSITION'未声明（在此函数中首次使用）
 src / lxml / lxml.etree.c：201123：错误：'LIBXSLT_VERSION'未声明（在此函数中首次使用）
 src / lxml / lxml.etree.c：201135：错误：'xsltLibxsltVersion'u ndeclared（在此函数中首次使用）
 src / lxml / lxml.etree.c：201147：错误：'__pyx_v_4lxml_5etree_XSLT_DOC_DEFAULT_LOADER'未声明（在此函数中首次使用）
 src / lxml / lxml.etree.c ：201147：错误：'xsltDocDefaultLoader'未声明（首次在此函数中使用）
 src / lxml / lxml.etree.c：201156：错误：'xsltDocLoaderFunc'未声明（首次在此函数中使用）
 src /lxml/lxml.etree.c:201156：error：expected'）'before'__pyx_f_4lxml_5etree__xslt_doc_loader'
 error：command'gcc'failed with exit status 1 
 
 ------ ---------------------------------- 
命令/ opt / python / run / venv / bin /python2.7 -cimport setuptools，tokenize; __ file __ ='/ tmp / pip-build -fJYICo / lxml / setup.py'; exec（compile（getattr（tokenize，'open'，open）（__ file __）。read （）.replace（'\r\\\
'，'\\\
'），__file__，'exec'））install --record /tmp/pip-iWirgM-record/install-record.txt --single -version-external-managed --compile --install-头文件/opt/python/run/venv/include/site/python2.7/lxml失败，错误代码1在/ tmp / pip-build-fJYICo / lxml 
 2015-08-04 07：00：15,710错误安装依赖关系时出错：命令'/ opt / python / run / venv / bin / pip install -r /opt/python/ondeck/app/requirements.txt'返回非零退出状态1 
 Traceback调用最后一个）：
在
 install_dependencies（）
文件中的/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py，第22行，/ opt / elasticbeanstalk / hooks /appdeploy/pre/03deploy.py，第18行，在install_dependencies 
 check_call（'％s install -r％s'％（os.path.join（APP_VIRTUAL_ENV，'bin'，'pip'），requirements_file ），shell = True）
在check_call中输入540行/usr/lib64/python2.7/subprocess.py
提升CalledProcessError（retcode，cmd）
 CalledProcessError： / opt / python / run / venv / bin / pip install -r /opt/python/ondeck/app/requirements.txt'返回非零退出状态1（Executor :: NonZeroExitStatus）
 
 
 [2015-08-04T07：00：15.731Z]信息[7052]  -  [CMD-Startup / StartupStage0 / AppDeployPreHook / 03deploy.py]：活动失败。 
 [2015-08-04T07：00：15.731Z]信息[7052]  -  [CMD-Startup / StartupStage0 / AppDeployPreHook]：活动失败。 
 [2015-08-04T07：00：15.731Z]信息[7052]  -  [CMD-Startup / StartupStage0]：活动失败。 
 [2015-08-04T07：00：15.749Z]信息[7052]  -  [CMD-Startup]：已完成的活动。结果：
命令CMD-Startup（阶段0）失败。 
  
以及requirements.txt文件： 
 
 
  alabaster == 0.7.6 
 alembic == 0.7.6 
 aniso8601 == 1.0.0 
 Babel == 1.3 
 beautifulsoup4 = = 4.4.0 
 blinker == 1.3 
 boto == 2.38.0 
 docutils == 0.12 
 Flask == 0.10.1 
 Flask-Bower == 1.2 .1 
 Flask-Cors == 2.0.1 
 Flask-DebugToolbar == 0.10.0 
 Flask-Login == 0.2.11 
 Flask-Mail == 0.9.1 
 Flask-RESTful == 0.3.3 
 Flask-WTF == 0.11 
 itsdangerous == 0.24 
 Jinja2 == 2.7.3 
 lxml == 3.4.4 
 Mako == 1.0.1 
 Markdown == 2.6.2 
 MarkupSafe == 0.23 
 nose == 1.3.6 
 pep8 == 1.6.2 
 psycopg2 == 2.6 
 Pygments == 2.0.2 
 pytz == 2015.4 
 == 2.7.0 
 == == 1.9.0 
 snowballstemmer = = 1.2.0 
 Sphinx == 1.3.1 
 sphinx-rtd-theme == 0.1.8 
 SQLAlchemy == 1.0.0 
 Werkzeug == 0.10.4 
 WTForms == 2.0.2 
  
首先，我正确地说安装 LXML ？ 
如果是这样，你知道如何解决它的AWS，因为在我的本地计算机（Mac OS 10.9.5）我没有这个错误。
解决方案
我猜是这样。
 
 
尝试下面的命令，然后重新安装lxml：
 
 
  $ sudo apt-get install libxml2-dev libxslt1-dev python-dev 
  
如果再次失败，请检查以下问题，它们与lxml安装问题有关： 
 
 
 
 
在Python中安装lxml模块   
 
 如何在Ubuntu上安装lxml  
 
 
  pip install lxml错误  
 
 
I have a problem deploying Flask application to AWS EC2 instance. Probably with pip installing lxml. But I don't know how to solve the issue.

AWS EC2:
Platform: 64bit Amazon Linux 2015.03 v1.4.6 running Python 2.7
From CLI on eb create:
CalledProcessError: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1. 
From logs:
src/lxml/lxml.etree.c:200873: error: ‘XML_XPATH_INVALID_ARITY’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:200883: error: ‘XML_XPATH_INVALID_CTXT_SIZE’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:200893: error: ‘XML_XPATH_INVALID_CTXT_POSITION’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201123: error: ‘LIBXSLT_VERSION’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201135: error: ‘xsltLibxsltVersion’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201147: error: ‘__pyx_v_4lxml_5etree_XSLT_DOC_DEFAULT_LOADER’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201147: error: ‘xsltDocDefaultLoader’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201156: error: ‘xsltDocLoaderFunc’ undeclared (first use in this function)
  src/lxml/lxml.etree.c:201156: error: expected ‘)’ before ‘__pyx_f_4lxml_5etree__xslt_doc_loader’
  error: command 'gcc' failed with exit status 1

  ----------------------------------------
Command "/opt/python/run/venv/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-fJYICo/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-iWirgM-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/python/run/venv/include/site/python2.7/lxml" failed with error code 1 in /tmp/pip-build-fJYICo/lxml
2015-08-04 07:00:15,710 ERROR    Error installing dependencies: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1
Traceback (most recent call last):
File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 22, in main
  install_dependencies()
File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 18, in install_dependencies
  check_call('%s install -r %s' % (os.path.join(APP_VIRTUAL_ENV, 'bin', 'pip'), requirements_file), shell=True)
File "/usr/lib64/python2.7/subprocess.py", line 540, in check_call
  raise CalledProcessError(retcode, cmd)
CalledProcessError: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1 (Executor::NonZeroExitStatus)


[2015-08-04T07:00:15.731Z] INFO  [7052]  - [CMD-Startup/StartupStage0/AppDeployPreHook/03deploy.py] : Activity failed.
[2015-08-04T07:00:15.731Z] INFO  [7052]  - [CMD-Startup/StartupStage0/AppDeployPreHook] : Activity failed.
[2015-08-04T07:00:15.731Z] INFO  [7052]  - [CMD-Startup/StartupStage0] : Activity failed.
[2015-08-04T07:00:15.749Z] INFO  [7052]  - [CMD-Startup] : Completed activity. Result:
Command CMD-Startup(stage 0) failed.
And the requirements.txt file:
alabaster==0.7.6
alembic==0.7.6
aniso8601==1.0.0
Babel==1.3
beautifulsoup4==4.4.0
blinker==1.3
boto==2.38.0
docutils==0.12
Flask==0.10.1
Flask-Bower==1.2.1
Flask-Cors==2.0.1
Flask-DebugToolbar==0.10.0
Flask-Login==0.2.11
Flask-Mail==0.9.1
Flask-RESTful==0.3.3
Flask-WTF==0.11
itsdangerous==0.24
Jinja2==2.7.3
lxml==3.4.4
Mako==1.0.1
Markdown==2.6.2
MarkupSafe==0.23
nose==1.3.6
pep8==1.6.2
psycopg2==2.6
Pygments==2.0.2
pytz==2015.4
requests==2.7.0
six==1.9.0
snowballstemmer==1.2.0
Sphinx==1.3.1
sphinx-rtd-theme==0.1.8
SQLAlchemy==1.0.0
Werkzeug==0.10.4
WTForms==2.0.2
First, am I right that the problem with installing lxml?
If so, do you know how to solve it for AWS because on my local computer (Mac OS 10.9.5) I hadn't that error.
解决方案
I guess so.

try the following command, and then reinstall lxml:
$ sudo apt-get install libxml2-dev libxslt1-dev python-dev
If failed again, have a check the following questions, they're related to lxml installation problems：


Installing lxml module in python
How to install lxml on Ubuntu
pip install lxml error  


                        
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