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TypeError in date_parse.py

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  TypeError in date_parse.py pestrella@gmail.com - 2013-09-11 08:04 -0700
    Re: TypeError in date_parse.py John Gordon <gordon@panix.com> - 2013-09-11 16:15 +0000
      Re: TypeError in date_parse.py pestrella@gmail.com - 2013-09-11 10:02 -0700
        Re: TypeError in date_parse.py John Gordon <gordon@panix.com> - 2013-09-11 17:09 +0000

#53972 — TypeError in date_parse.py

Hello, I'm running an application using python 2.7 with django 1.5 and when posting a page I get the error "TypeError" I guess it is something related to timestamps?
Below I paste part of the code I think is causing the problem and the stacktace I see 

Any help is welcome, Thanks!
Paula

=============================
    # Compute duration for this item.
        duration = None
        if end_timestamp and start_timestamp:
            start_datetime = datetime.fromtimestamp(float(start_timestamp))
            end_datetime = datetime.fromtimestamp(float(end_timestamp))
            duration = end_datetime - start_datetime
=============================
POST
Request URL:	http://127.0.0.1:8000/appraise/evaluation/7b31d05e50584d2b92b4a04d85e68ce3/
Django Version:	1.5.2
Exception Type:	TypeError
Exception Value:	
expected string or buffer
Exception Location:	/usr/local/lib/python2.7/dist-packages/django/utils/dateparse.py in parse_time, line 50
Python Executable:	/usr/bin/python
Python Version:	2.7.2
Python Path:	
['../Appraise-Software/appraise',
 '/home/paula/.local/lib/python2.7/site-packages/setuptools-1.1.4-py2.7.egg',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-linux2',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/home/paula/.local/lib/python2.7/site-packages',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PIL',
 '/usr/lib/python2.7/dist-packages/gst-0.10',
 '/usr/lib/python2.7/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.7',
 '/usr/lib/python2.7/dist-packages/ubuntu-sso-client',
 '/usr/lib/python2.7/dist-packages/ubuntuone-client',
 '/usr/lib/python2.7/dist-packages/ubuntuone-control-panel',
 '/usr/lib/python2.7/dist-packages/ubuntuone-couch',
 '/usr/lib/python2.7/dist-packages/ubuntuone-installer',
 '/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol']

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#53975

In <09d39e02-c741-4a46-b34f-551e11118e7b@googlegroups.com> pestrella@gmail.com writes:

> =============================
>     # Compute duration for this item.
>         duration = None
>         if end_timestamp and start_timestamp:
>             start_datetime = datetime.fromtimestamp(float(start_timestamp))
>             end_datetime = datetime.fromtimestamp(float(end_timestamp))
>             duration = end_datetime - start_datetime
> =============================

What is the type and value of start_timestamp and end_timestamp?

-- 
John Gordon                   A is for Amy, who fell down the stairs
gordon@panix.com              B is for Basil, assaulted by bears
                                -- Edward Gorey, "The Gashlycrumb Tinies"

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#53978

I think it's a float, I see in the code 

if request.method == "POST":
        end_timestamp = request.POST.get('end_timestamp', None)
        start_timestamp = request.POST.get('start_timestamp', None)

and in the debug of django 

<QueryDict: {u'start_timestamp': [u'1378918630.398'],

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#53979

In <3d0038fd-00ec-4560-ab0d-06528f838026@googlegroups.com> pestrella@gmail.com writes:

> I think it's a float, I see in the code 

> if request.method == "POST":
>         end_timestamp = request.POST.get('end_timestamp', None)
>         start_timestamp = request.POST.get('start_timestamp', None)

> and in the debug of django 

> <QueryDict: {u'start_timestamp': [u'1378918630.398'],

That's a list, containing a string.  float() expects a single item, not a
list.

-- 
John Gordon                   A is for Amy, who fell down the stairs
gordon@panix.com              B is for Basil, assaulted by bears
                                -- Edward Gorey, "The Gashlycrumb Tinies"

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