Re: 'NoneType' object is not iterable

[Kalle]

Hi Malcolm,

Thank you very much for the detailed answer! Everything is working OK
now.

  ///Kalle

On May 8, 11:53 pm, Malcolm Tredinnick 
wrote:
> On Fri, 2009-05-08 at 11:24 -0700,Kallewrote:
> > Hi,
>
> > I'm just started to play with Django, and ran into this problem right
> > away.
>
> > * I'm using the python script at the bottom to POST to the url.
> > * I'm using "manage.py runserver" to run my app
> > * Everything works fine when I'll run my tests with "manage.py test".
>
> > When I set a breakpoint at django/core/handlers/base.py:77 I see that
> > request.path_info is "http://127.0.0.1:8000/uncaughtexception/drop;.
> > From what I
> > understand, request.path_info should be "/uncaughtexception/drop" at
> > that point?
>
> > Since the tests works it must be some error in my setup of runserver.
> > I can't understand what kind of setting I should use to make django
> > strip way the host
> > part of the URL.
>
> [...]
>
> > --- test script ---
> > HOST = "127.0.0.1:8000"
> > URL = "http://%s/uncaughtexception/drop; % HOST
>
> > h = httplib.HTTPConnection(HOST)
> > headers = { "Content-Type" : "text/html; charset=utf-8" }
> > h.request("POST", URL, "apa", headers)
>
> This is where the problem lies. The URL you send to the host should not
> contain the hostname and scheme. That is already implicit in the
> HTTPConnection object. So your URL variable should be simply
> "/uncaughtexception/drop/".
>
> A rough breakdown of what happens when your webbrowser (or anything
> speaking HTTP) connects tohttp://example.com/foo/bar/is this:
>
>         (1) Connection opened to example.com, port 80
>         (2) Down that connection, the client sends
>
>                 GET /foo/bar HTTP/1.1
>                 Host example.com
>                 ...
>
>         (the "..." hides some extra headers that might be sent)
>
> Notice that the "GET" request includes the resource to retrieve. It
> already knows *where* to send it because it's made a network connection.
> In your case, GET becomes POST and there's a different port number
> involved, etc, but the point is that single URL encapsulates multiple
> operations.
>
> Now, all this being said, you're potentially making life a little hard
> for yourself here if you're only wanting to test your views. Django
> contains a little test client that simulates a browser connection,
> without requiring you to run a whole separate server and so on. What
> you're doing isn't necessarily wrong, but if you're unaware 
> ofhttp://docs.djangoproject.com/en/dev/topics/testing/#module-django.te...you 
> might want to have a quick play with that first. It will make your tests a 
> fair bit simpler.
>
> Regards,
> Malcolm
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Re: 'NoneType' object is not iterable

[Malcolm Tredinnick]

On Fri, 2009-05-08 at 11:24 -0700, Kalle wrote:
> Hi,
> 
> I'm just started to play with Django, and ran into this problem right
> away.
> 
> * I'm using the python script at the bottom to POST to the url.
> * I'm using "manage.py runserver" to run my app
> * Everything works fine when I'll run my tests with "manage.py test".
> 
> When I set a breakpoint at django/core/handlers/base.py:77 I see that
> request.path_info is "http://127.0.0.1:8000/uncaughtexception/drop;.
> From what I
> understand, request.path_info should be "/uncaughtexception/drop" at
> that point?
> 
> Since the tests works it must be some error in my setup of runserver.
> I can't understand what kind of setting I should use to make django
> strip way the host
> part of the URL.

[...]
> --- test script ---
> HOST = "127.0.0.1:8000"
> URL = "http://%s/uncaughtexception/drop; % HOST
> 
> h = httplib.HTTPConnection(HOST)
> headers = { "Content-Type" : "text/html; charset=utf-8" }
> h.request("POST", URL, "apa", headers)

This is where the problem lies. The URL you send to the host should not
contain the hostname and scheme. That is already implicit in the
HTTPConnection object. So your URL variable should be simply
"/uncaughtexception/drop/".

A rough breakdown of what happens when your webbrowser (or anything
speaking HTTP) connects to http://example.com/foo/bar/ is this:

(1) Connection opened to example.com, port 80
(2) Down that connection, the client sends

GET /foo/bar HTTP/1.1
Host example.com
...

(the "..." hides some extra headers that might be sent)

Notice that the "GET" request includes the resource to retrieve. It
already knows *where* to send it because it's made a network connection.
In your case, GET becomes POST and there's a different port number
involved, etc, but the point is that single URL encapsulates multiple
operations.

Now, all this being said, you're potentially making life a little hard
for yourself here if you're only wanting to test your views. Django
contains a little test client that simulates a browser connection,
without requiring you to run a whole separate server and so on. What
you're doing isn't necessarily wrong, but if you're unaware of
http://docs.djangoproject.com/en/dev/topics/testing/#module-django.test.client 
you might want to have a quick play with that first. It will make your tests a 
fair bit simpler.

Regards,
Malcolm



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Re: 'NoneType' object is not iterable

[Javi]

It works!! Thank you very much!! The django.root PythonOption stripped
the initial "/"

Greetings.

On Nov 11, 11:54 pm, Rajesh Dhawan <[EMAIL PROTECTED]> wrote:
> Hi Javi,
>
> > I've tried putting FORCE_SCRIPT_NAME="" but everything continues at
> > the same state. I'm running the app in Apache2/mod_python. I've pasted
> > the htttp.conf file athttp://rafb.net/p/Ya1VKT55.html
>
> I can't see your conf file there. Perhaps you want to paste again 
> athttp://dpaste.com/?
>
> Take a look at the django.root PythonOption described here:
>
> http://docs.djangoproject.com/en/dev/howto/deployment/modpython/?from...
>
> Are you using that option? If, yes, remove that option entirely and
> try again.
>
> -Rajesh
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Re: 'NoneType' object is not iterable

[Rajesh Dhawan]

Hi Javi,

> I've tried putting FORCE_SCRIPT_NAME="" but everything continues at
> the same state. I'm running the app in Apache2/mod_python. I've pasted
> the htttp.conf file athttp://rafb.net/p/Ya1VKT55.html

I can't see your conf file there. Perhaps you want to paste again at
http://dpaste.com/ ?

Take a look at the django.root PythonOption described here:

http://docs.djangoproject.com/en/dev/howto/deployment/modpython/?from=olddocs#basic-configuration

Are you using that option? If, yes, remove that option entirely and
try again.

-Rajesh
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Re: 'NoneType' object is not iterable

[Zeddy]

Same problem. Any suggestions?

I am using nginx with fapws2 (wsgi server). Looks like script kiddie
thinks that my web server is an open proxy (88.80.7.248 is NOT my IP
address):

Traceback (most recent call last):

  File "/usr/local/lib/python2.5/site-packages/django/core/handlers/
base.py", line 77, in get_response
request.path_info)

TypeError: 'NoneType' object is not iterable


,
POST:,
COOKIES:{},
META:{'HTTP_ACCEPT': '*/*',
 'HTTP_HOST': '88.80.7.248',
 'HTTP_PRAGMA': 'no-cache',
 'HTTP_PROXY_CONNECTION': 'Keep-Alive',
 'PATH_INFO': u'http://88.80.7.248/proxy-pool/set-cookie.php',
 'QUERY_STRING': '',
 'REQUEST_METHOD': 'GET',
 'SCRIPT_NAME': u'',
 'SERVER_NAME': '127.0.0.1',
 'SERVER_PORT': 8080,
 'fapws.http_major': 1,
 'fapws.http_minor': 1,
 'fapws.params': {},
 'fapws.remote_host': '88.80.7.248',
 'fapws.remote_port': 34609,
 'fapws.uri': 'http://88.80.7.248/proxy-pool/set-cookie.php',
 'wsgi.errors': ,
 'wsgi.input': ,
 'wsgi.multiprocess': True,
 'wsgi.multithread': False,
 'wsgi.run_once': False,
 'wsgi.url_scheme': 'http',
 'wsgi.version': (1, 0)}>



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Re: 'NoneType' object is not iterable

[Diego Cibils]

Hi Javi,

I'm having the same problem... any progress so far?

Thanks.

On Nov 10, 8:35 am, Javi <[EMAIL PROTECTED]> wrote:
> Hello Rajesh,
>
> I've tried putting FORCE_SCRIPT_NAME="" but everything continues at
> the same state. I'm running the app in Apache2/mod_python. I've pasted
> the htttp.conf file athttp://rafb.net/p/Ya1VKT55.html
>
> I'm going to continue trying to solve it.
>
> On Nov 5, 7:11 pm, Rajesh Dhawan <[EMAIL PROTECTED]> wrote:
>
> > Hi Javi,
>
> > > Thanks but I'd already tried it. I don't understand why in the
> > > production server is not added the preceeding slash to the url. My
> > > urls.py is as follows:
> > > urlpatterns = patterns('candidateTool.assessmentSystem.views',
> > >     (r'^$', 'index'),
> > >     (r'^enter/$', 'enter'),
> > >     (r'^main/$', 'main'),
> > >     (r'^exam/(?P\d+)/$', 'exam'),
> > >     (r'^myexam/(?P\d+)/$', 'my_exam'),
> > >     (r'^solved/(?P\d+)/$', 'solved_exam'),
> > >     (r'^report/$', 'report'),
> > >     (r'^exams/$', 'exams'),
> > >     (r'^admin/(.*)', admin.site.root),
> > > )
>
> > > In the index page is called /enter and I've also tried /enter/ but
> > > neither work :(
>
> > Try, putting FORCE_SCRIPT_NAME='' in your settings file.
>
> > Also, how are you running the application in your production server
> > (Apache/mod_python, lighttpd/flup, nginx/proxy, etc.)?
>
> > -RD

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Re: 'NoneType' object is not iterable

[Javi]

Hello Rajesh,

I've tried putting FORCE_SCRIPT_NAME="" but everything continues at
the same state. I'm running the app in Apache2/mod_python. I've pasted
the htttp.conf file at http://rafb.net/p/Ya1VKT55.html

I'm going to continue trying to solve it.

On Nov 5, 7:11 pm, Rajesh Dhawan <[EMAIL PROTECTED]> wrote:
> Hi Javi,
>
>
>
> > Thanks but I'd already tried it. I don't understand why in the
> > production server is not added the preceeding slash to the url. My
> > urls.py is as follows:
> > urlpatterns = patterns('candidateTool.assessmentSystem.views',
> >     (r'^$', 'index'),
> >     (r'^enter/$', 'enter'),
> >     (r'^main/$', 'main'),
> >     (r'^exam/(?P\d+)/$', 'exam'),
> >     (r'^myexam/(?P\d+)/$', 'my_exam'),
> >     (r'^solved/(?P\d+)/$', 'solved_exam'),
> >     (r'^report/$', 'report'),
> >     (r'^exams/$', 'exams'),
> >     (r'^admin/(.*)', admin.site.root),
> > )
>
> > In the index page is called /enter and I've also tried /enter/ but
> > neither work :(
>
> Try, putting FORCE_SCRIPT_NAME='' in your settings file.
>
> Also, how are you running the application in your production server
> (Apache/mod_python, lighttpd/flup, nginx/proxy, etc.)?
>
> -RD
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Re: 'NoneType' object is not iterable

[Rajesh Dhawan]

Hi Javi,

> Thanks but I'd already tried it. I don't understand why in the
> production server is not added the preceeding slash to the url. My
> urls.py is as follows:
> urlpatterns = patterns('candidateTool.assessmentSystem.views',
> (r'^$', 'index'),
> (r'^enter/$', 'enter'),
> (r'^main/$', 'main'),
> (r'^exam/(?P\d+)/$', 'exam'),
> (r'^myexam/(?P\d+)/$', 'my_exam'),
> (r'^solved/(?P\d+)/$', 'solved_exam'),
> (r'^report/$', 'report'),
> (r'^exams/$', 'exams'),
> (r'^admin/(.*)', admin.site.root),
> )
>
> In the index page is called /enter and I've also tried /enter/ but
> neither work :(

Try, putting FORCE_SCRIPT_NAME='' in your settings file.

Also, how are you running the application in your production server
(Apache/mod_python, lighttpd/flup, nginx/proxy, etc.)?

-RD
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Re: 'NoneType' object is not iterable

[Javi]

Thanks but I'd already tried it. I don't understand why in the
production server is not added the preceeding slash to the url. My
urls.py is as follows:
urlpatterns = patterns('candidateTool.assessmentSystem.views',
(r'^$', 'index'),
(r'^enter/$', 'enter'),
(r'^main/$', 'main'),
(r'^exam/(?P\d+)/$', 'exam'),
(r'^myexam/(?P\d+)/$', 'my_exam'),
(r'^solved/(?P\d+)/$', 'solved_exam'),
(r'^report/$', 'report'),
(r'^exams/$', 'exams'),
(r'^admin/(.*)', admin.site.root),
)

In the index page is called /enter and I've also tried /enter/ but
neither work :(


On Nov 4, 7:07 pm, Xiong Chiamiov <[EMAIL PROTECTED]> wrote:
> If it works in one environment, but not another, then it might have
> something to do with your settings files.  When you create your links,
> are you having the href be "/enter" or "/enter/"?  I think the
> middleware class you're reading about is for trailing slashes, not
> preceeding ones.
>
> On Nov 4, 9:35 am, Javi <[EMAIL PROTECTED]> wrote:
>
> > Hello everybody!
> > I'm using django 1.0-1 version and Apache as a server web. In the dev
> > server everything works fine but in the production server I get the
> > following error when I ask for a url:
>
> > NoneType' object is not iterable
>
> > Request Method:         POST
> > Request URL:    http://localhostenter/
> > Exception Type:         TypeError
> > Exception Value:
>
> > 'NoneType' object is not iterable
>
> > Exception Location:     /var/lib/python-support/python2.5/django/core/
> > handlers/base.py in get_response, line 77
> > Python Executable:      /usr/bin/python
> > Python Version:         2.5.2
>
> > I think it's because the "/" after "localhost" is not added, actually
> > the url in the browser ishttp://localhost/enter/
>
> > I've been reading about the problem and someone speaks about creating
> > a middleware class... I don't know...
>
> > Is there another simpler way to sort the problem out?
>
> > Thanks in advance.
>
> > Greetings.
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Re: 'NoneType' object is not iterable

[Xiong Chiamiov]

If it works in one environment, but not another, then it might have
something to do with your settings files.  When you create your links,
are you having the href be "/enter" or "/enter/"?  I think the
middleware class you're reading about is for trailing slashes, not
preceeding ones.

On Nov 4, 9:35 am, Javi <[EMAIL PROTECTED]> wrote:
> Hello everybody!
> I'm using django 1.0-1 version and Apache as a server web. In the dev
> server everything works fine but in the production server I get the
> following error when I ask for a url:
>
> NoneType' object is not iterable
>
> Request Method:         POST
> Request URL:    http://localhostenter/
> Exception Type:         TypeError
> Exception Value:
>
> 'NoneType' object is not iterable
>
> Exception Location:     /var/lib/python-support/python2.5/django/core/
> handlers/base.py in get_response, line 77
> Python Executable:      /usr/bin/python
> Python Version:         2.5.2
>
> I think it's because the "/" after "localhost" is not added, actually
> the url in the browser ishttp://localhost/enter/
>
> I've been reading about the problem and someone speaks about creating
> a middleware class... I don't know...
>
> Is there another simpler way to sort the problem out?
>
> Thanks in advance.
>
> Greetings.
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