web.py + lighttpd + matplotlib 不工作

发布于 2024-10-09 04:13:21 字数 2188 浏览 8 评论 0原文

我正在尝试使用lighttpd 部署我的web.py 应用程序。如果导入matplotlib则不起作用。

这有效...

hello.py:

#!/usr/bin/python

import web

# Say hello.
class Index:
    def GET(self): return 'hello web.py'
if __name__ == "__main__":
    app = web.application(('/*', 'Index'), globals())
    app.run()

/etc/init.d/lighttpd restart

我转到我的网站并看到“hello web.py”。

但是，如果我将 import matplotlib 添加到 hello.py 并重新启动服务器，那么当我访问该站点时，我会收到 500 - 内部服务器错误。

这是/var/log/lighttpd/error.log：--

2010-12-24 00:17:31: (log.c.166) server started
2010-12-24 00:17:42: (mod_fastcgi.c.1734) connect failed: Connection refused on
unix:/tmp/fastcgi.socket-0
2010-12-24 00:17:42: (mod_fastcgi.c.3037) backend died; we'll disable it for 1 s
econds and send the request to another backend instead: reconnects: 0 load: 1
2010-12-24 00:17:43: (mod_fastcgi.c.2582) unexpected end-of-file (perhaps the fa
stcgi process died): pid: 4074 socket: unix:/tmp/fastcgi.socket-0
2010-12-24 00:17:43: (mod_fastcgi.c.3320) child exited, pid: 4074 status: 1
2010-12-24 00:17:43: (mod_fastcgi.c.3367) response not received, request sent: 9
53 on socket: unix:/tmp/fastcgi.socket-0 for /hello.py?, closing connection
2010-12-24 00:20:30: (server.c.1503) server stopped by UID = 0 PID = 4095
2010-12-24 00:20:30: (log.c.166) server started

编辑--

这是我的lighttpd.conf：http://pastebin.com/n6sG5z9K

很确定这只是默认值（除非我设置 server.document-root = "/var/www/hello/"）

这是我的 fastcgi.conf：

server.modules   += ( "mod_fastcgi" )
server.modules   += ( "mod_rewrite" )

fastcgi.server = ( "/hello.py" =>
 (( "socket" => "/tmp/fastcgi.socket",
    "bin-path" => "/usr/bin/python /var/www/hello/hello.py",
    "max-procs" => 1,
   "bin-environment" => (
     "REAL_SCRIPT_NAME" => ""
   ),
   "check-local" => "disable"
 ))
 )

url.rewrite-once = (
   "^/favicon.ico$" => "/static/favicon.ico",
   "^/static/(.*)$" => "/static/$1",
   "^/(.*)$" => "/hello.py/$1",
 )

有什么建议吗？

原文

I'm trying to deploy my web.py app with lighttpd. It doesn't work if import matplotlib.

This works...

hello.py:

#!/usr/bin/python

import web

# Say hello.
class Index:
    def GET(self): return 'hello web.py'
if __name__ == "__main__":
    app = web.application(('/*', 'Index'), globals())
    app.run()

/etc/init.d/lighttpd restart

I go to my site and see "hello web.py".

But if I add import matplotlib to hello.py and restart the server, then when I go to the site I get a 500 - Internal Server Error.

Here's /var/log/lighttpd/error.log:

2010-12-24 00:17:31: (log.c.166) server started
2010-12-24 00:17:42: (mod_fastcgi.c.1734) connect failed: Connection refused on
unix:/tmp/fastcgi.socket-0
2010-12-24 00:17:42: (mod_fastcgi.c.3037) backend died; we'll disable it for 1 s
econds and send the request to another backend instead: reconnects: 0 load: 1
2010-12-24 00:17:43: (mod_fastcgi.c.2582) unexpected end-of-file (perhaps the fa
stcgi process died): pid: 4074 socket: unix:/tmp/fastcgi.socket-0
2010-12-24 00:17:43: (mod_fastcgi.c.3320) child exited, pid: 4074 status: 1
2010-12-24 00:17:43: (mod_fastcgi.c.3367) response not received, request sent: 9
53 on socket: unix:/tmp/fastcgi.socket-0 for /hello.py?, closing connection
2010-12-24 00:20:30: (server.c.1503) server stopped by UID = 0 PID = 4095
2010-12-24 00:20:30: (log.c.166) server started

-- Edit --

Here is my lighttpd.conf: http://pastebin.com/n6sG5z9K

Pretty sure it's just the default (except I set server.document-root = "/var/www/hello/")

Here is my fastcgi.conf:

server.modules   += ( "mod_fastcgi" )
server.modules   += ( "mod_rewrite" )

fastcgi.server = ( "/hello.py" =>
 (( "socket" => "/tmp/fastcgi.socket",
    "bin-path" => "/usr/bin/python /var/www/hello/hello.py",
    "max-procs" => 1,
   "bin-environment" => (
     "REAL_SCRIPT_NAME" => ""
   ),
   "check-local" => "disable"
 ))
 )

url.rewrite-once = (
   "^/favicon.ico$" => "/static/favicon.ico",
   "^/static/(.*)$" => "/static/$1",
   "^/(.*)$" => "/hello.py/$1",
 )

Any suggestions?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

素染倾城色 2024-10-16 04:13:21

今天偶然发现了这个问题（使用 Apache，但很可能是完全相同的问题）。我从脚本中重定向了 stdout 和 stderr 以查看发生了什么，问题是 matplotlib 正在尝试创建一个文件：

Traceback (most recent call last):
  File "/home/ec2-user/dlea/src/dla.py", line 24, in <module>
    import dbm
  File "/home/ec2-user/dlea/src/dbm.py", line 7, in <module>
    import matplotlib
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 709, in <module>
    rcParams = rc_params()
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 627, in rc_params
    fname = matplotlib_fname()
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 565, in matplotlib_fname
    fname = os.path.join(get_configdir(), 'matplotlibrc')
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 240, in wrapper
    ret = func(*args, **kwargs)
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 439, in _get_configdir
    raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /var/www/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

由于它以用户 httpd (Apache) 身份运行，因此它尝试在 /var/www/ 中创建文件，它由 root 拥有，并且 Apache 用户不可写入。

一个有效的解决方案就像在导入 matplotlib 之前将 MPLCONFIGDIR 设置为临时目录一样简单：

import os
import tempfile
os.environ['MPLCONFIGDIR'] = tempfile.mkdtemp()
import matplotlib

为了跟踪问题，这就是我将 stdout 和 stderr 重定向到某个日志文件以查看发生了什么情况的方法：

sys.stdout = open("/var/log/dla_stdout.txt", 'a')
sys.stderr = open("/var/log/dla_stderr.txt", 'a')

我实际上从另一个 StackOverflow 获得了解决方案问题：设置 Matplotlib MPLCONFIGDIR：考虑将 MPLCONFIGDIR 设置为可写matplotlib 配置数据目录

Stumbled into this today (with Apache, but it's likely to be exactly the same issue). I redirected stdout and stderr from the script to see what was happening, and the issue is that matplotlib is trying to create a file:

Traceback (most recent call last):
  File "/home/ec2-user/dlea/src/dla.py", line 24, in <module>
    import dbm
  File "/home/ec2-user/dlea/src/dbm.py", line 7, in <module>
    import matplotlib
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 709, in <module>
    rcParams = rc_params()
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 627, in rc_params
    fname = matplotlib_fname()
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 565, in matplotlib_fname
    fname = os.path.join(get_configdir(), 'matplotlibrc')
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 240, in wrapper
    ret = func(*args, **kwargs)
  File "/usr/lib64/python2.6/site-packages/matplotlib/__init__.py", line 439, in _get_configdir
    raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /var/www/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

Since it's being run as user httpd (Apache), it tries to create the file in /var/www/, which is root-owned, and not writeable by the Apache user.

One valid solution is as simple as setting the MPLCONFIGDIR to a temporary directory before importing matplotlib:

import os
import tempfile
os.environ['MPLCONFIGDIR'] = tempfile.mkdtemp()
import matplotlib

To track the issue, this is how I redirected stdout and stderr to some log file to see what was happening:

sys.stdout = open("/var/log/dla_stdout.txt", 'a')
sys.stderr = open("/var/log/dla_stderr.txt", 'a')

I actually got the solution from this other StackOverflow question: Setting Matplotlib MPLCONFIGDIR: consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

回复收藏 0 原文

栀子花开つ 2024-10-16 04:13:21

我正在遵循这个食谱： http://webpy.org/cookbook/fastcgi-lighttpd

我忽略了该主题顶部的链接：http://www.mail- archive.com/[email protected]/msg02800.html

该线程有解决方案。我像这样运行 python 进程：

/var/www/hello.py fastcgi 9080

，然后像这样设置我的fastcgi.conf：

 fastcgi.server = ( "/hello.py" =>
     ((
        "host" => "127.0.0.1",
        "port" => 9080,
        "check-local" => "disable"
    ))
 )

然后它就可以工作了。（仍然不确定我是否已正确配置所有内容，但事情似乎正在工作。）

I was following this recipe: http://webpy.org/cookbook/fastcgi-lighttpd

I overlooked a link at the top to this thread: http://www.mail-archive.com/[email protected]/msg02800.html

That thread had the solution. I run the python process like so:

/var/www/hello.py fastcgi 9080

and then set my fastcgi.conf like so:

 fastcgi.server = ( "/hello.py" =>
     ((
        "host" => "127.0.0.1",
        "port" => 9080,
        "check-local" => "disable"
    ))
 )

Then it works. (Still not sure I've got everything configured properly, but things seem to be working.)

回复收藏 0 原文

彻夜缠绵 2024-10-16 04:13:21

我通过以下方式修复问题：

pip install flup

不需要

/var/www/hello.py fastcgi 9080

我的系统是：amazon ec2、ubuntu 10.04
Lighttpd：1.4.26

I fix the issue by:

pip install flup

don't need

/var/www/hello.py fastcgi 9080

my system is: amazon ec2, ubuntu 10.04
lighttpd: 1.4.26

回复收藏 0 原文

救赎№ 2024-10-16 04:13:21

我的第一个猜测是您收到 ImportError 因为 matplotlib 未正确安装或不在 PYTHONPATH 上或其他一些疯狂的地方事物。唯一确定的方法是查看回溯。它显示您正在运行 fastcgi，这意味着 python 代码正在另一个进程中执行。因此，您无法在lighttpd 日志中找到回溯。

你是如何运行 fastcgi 进程的？回溯将被写入其 stderr。您也可以考虑使用 supervisord。它支持将 stderr 重定向到日志文件以及各种其他使创建守护进程变得更容易的功能。

回复收藏 0 原文

~没有更多了~