Re: if statement in django

[Jay Lozier]

On 04/05/2014 11:08 PM, Anthony Smith wrote:

Hi



I have a small project and I have been unable to get the following 
statement to work. Any help would great.User inputs can either 
self_sale_head which is a $ value,if a $ value is not add a 
self.estimated_weight_hd is used to get the total weight, the code 
below should return a estimated_weight_total which can be used for the 
total sale price. All works when I add the estimated_weight_total 
manually. I am lost as why.


|def  calc_estimated_weight_total(self):
 if  self.sale_head<=  0:
 amount=  (self.number*  self.estimated_weight_hd)
 return  amount

def  save(self):
 self.estimated_total_weight=  self.calc_estimated_weight_total()
 super(SaleNote,  self).save()|




Anthony,

In your first function, when the if condition evaluates to False it not 
return anything.


A possible version is:

def calc_estimated_weight_total(self):
if self.sale_head <= 0:
amount = self.number * self.estimated_weight_hd
else:
amount = 0  # (or your default value or other code to calculate 
amount)

return amount

Another version

def calc_estimated_weight_total(self):
amount = 0
if self.sale_head <= 0:
amount = self.number * self.estimated_weight_hd
return amount

Both versions will return a value not matter whether the test condition 
evaluates to True or False. The second version assumes the default value 
is 0


--
Jay Lozier
jsloz...@gmail.com

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Re: python manage.py runserver error

[Jay Lozier]

virtualenv works, this for the link.

On Sunday, July 21, 2013 10:09:59 PM UTC-4, Jay Lozier wrote:
>
> I get the following error when run python manage.py runserver:
>
> OS openSUSE 12.3
> django 1.7
>
>
> boopers@linux-nss6:~/myfirstsite> python manage.py runserver
> Traceback (most recent call last):
> File "manage.py", line 10, in 
> execute_from_command_line(sys.argv)
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 397, in execute_from_command_line
> utility.execute()
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 390, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 261, in fetch_command
> app_name = get_commands()[subcommand]
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 107, in get_commands
> apps = settings.INSTALLED_APPS
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 54, in 
> __getattr__
> self._setup(name)
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 50, in 
> _setup
> self._configure_logging()
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 68, in 
> _configure_logging
> from django.utils.log import DEFAULT_LOGGING
> File "/home/boopers/django-trunk/django/utils/log.py", line 7, in 
> from django.views.debug import ExceptionReporter, 
> get_exception_reporter_filter
> File "/home/boopers/django-trunk/django/views/debug.py", line 10, in 
> 
> from django.http import (HttpResponse, HttpResponseServerError,
> File "/home/boopers/django-trunk/django/http/__init__.py", line 4, in 
> 
> from django.http.response import (HttpResponse, StreamingHttpResponse,
> File "/home/boopers/django-trunk/django/http/response.py", line 16, in 
> 
> from django.utils import six, timezone
> File "/home/boopers/django-trunk/django/utils/timezone.py", line 11, in 
> 
> import pytz
> File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 
> 
> from pkg_resources import resource_stream
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 3027, in 
> add_activation_listener(lambda dist: dist.activate())
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 741, in subscribe
> callback(dist)
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 3027, in 
> add_activation_listener(lambda dist: dist.activate())
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2514, in activate
> list(map(declare_namespace, self._get_metadata('namespace_packages.txt')))
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2094, in declare_namespace
> _handle_ns(packageName, path_item)
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2059, in _handle_ns
> raise TypeError("Not a package:", packageName)
> TypeError: ('Not a package:', 'cgi')
>
>
> The sys paths are
>
> /usr/lib/python2.7/site-packages/pymongo-2.5.1-py2.7-linux-x86_64.egg
> /usr/lib/python2.7/site-packages/bottle-0.11.6-py2.7.egg
> /usr/lib/python2.7/site-packages/translationstring-1.1-py2.7.egg
> /usr/lib/python2.7/site-packages/venusian-1.0a8-py2.7.egg
> /usr/lib/python2.7/site-packages/zope.deprecation-4.0.2-py2.7.egg
> /usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg
> /home/boopers/django-trunk
> /usr/lib/python27.zip
> /usr/lib64/python2.7
> /usr/lib64/python2.7/plat-linux2
> /usr/lib64/python2.7/lib-tk
> /usr/lib64/python2.7/lib-old
> /usr/lib64/python2.7/lib-dynload
> /usr/lib64/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/FontTools
> /usr/lib64/python2.7/site-packages/PIL
> /usr/local/lib64/python2.7/site-packages
> /usr/local/lib/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/gst-0.10
> /usr/lib64/python2.7/site-packages/gtk-2.0
> /usr/lib64/python2.7/site-packages/input-pad-1.0
> /usr/lib/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/wx-2.9.4-gtk2
>

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Re: django-admin.py startproject mysite error

[Jay Lozier]

virtualenv seems to work well and I can get django tamed.

On Saturday, July 20, 2013 5:55:21 PM UTC-4, Jay Lozier wrote:
>
> Using openSUSE 12.3
> python 2.7.3
> django 1.5.1 installed manually and verified
>
> When I enter "django-admin.py startproject mysite" at the command prompt I 
> get the following traceback:
>
> Traceback (most recent call last):
> File "/usr/bin/django-admin.py", line 5, in 
> management.execute_from_command_line()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 453, in execute_from_command_line
> utility.execute()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 392, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 272, in fetch_command
> klass = load_command_class(app_name, subcommand)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 77, in load_command_class
> module = import_module('%s.management.commands.%s' % (app_name, name))
> File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 
> 35, in import_module
> __import__(name)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/commands/startproject.py",
>  
> line 2, in 
> from django.core.management.templates import TemplateCommand
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/templates.py", 
> line 20, in 
> from django.template import Template, Context
> File "/usr/lib/python2.7/site-packages/django/template/__init__.py", line 
> 53, in 
> from django.template.base import (ALLOWED_VARIABLE_CHARS, BLOCK_TAG_END,
> File "/usr/lib/python2.7/site-packages/django/template/base.py", line 18, 
> in 
> from django.utils.formats import localize
> File "/usr/lib/python2.7/site-packages/django/utils/formats.py", line 5, 
> in 
> from django.utils import dateformat, numberformat, datetime_safe
> File "/usr/lib/python2.7/site-packages/django/utils/dateformat.py", line 
> 25, in 
> from django.utils.timezone import is_aware, is_naive
> File "/usr/lib/python2.7/site-packages/django/utils/timezone.py", line 11, 
> in 
> import pytz
> File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 
> 
> from pkg_resources import resource_stream
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 709, in 
> subscribe
> callback(dist)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2465, in 
> activate
> map(declare_namespace, self._get_metadata('namespace_packages.txt'))
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2045, in 
> declare_namespace
> _handle_ns(packageName, path_item)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2010, in 
> _handle_ns
> raise TypeError("Not a package:", packageName)
> TypeError: ('Not a package:', 'cgi')
>
> How do I fix this?
>

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python manage.py runserver error

[Jay Lozier]

I get the following error when run python manage.py runserver:

OS openSUSE 12.3
django 1.7


boopers@linux-nss6:~/myfirstsite> python manage.py runserver
Traceback (most recent call last):
File "manage.py", line 10, in 
execute_from_command_line(sys.argv)
File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
397, in execute_from_command_line
utility.execute()
File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
390, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
261, in fetch_command
app_name = get_commands()[subcommand]
File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
107, in get_commands
apps = settings.INSTALLED_APPS
File "/home/boopers/django-trunk/django/conf/__init__.py", line 54, in 
__getattr__
self._setup(name)
File "/home/boopers/django-trunk/django/conf/__init__.py", line 50, in 
_setup
self._configure_logging()
File "/home/boopers/django-trunk/django/conf/__init__.py", line 68, in 
_configure_logging
from django.utils.log import DEFAULT_LOGGING
File "/home/boopers/django-trunk/django/utils/log.py", line 7, in 
from django.views.debug import ExceptionReporter, 
get_exception_reporter_filter
File "/home/boopers/django-trunk/django/views/debug.py", line 10, in 

from django.http import (HttpResponse, HttpResponseServerError,
File "/home/boopers/django-trunk/django/http/__init__.py", line 4, in 

from django.http.response import (HttpResponse, StreamingHttpResponse,
File "/home/boopers/django-trunk/django/http/response.py", line 16, in 

from django.utils import six, timezone
File "/home/boopers/django-trunk/django/utils/timezone.py", line 11, in 

import pytz
File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 

from pkg_resources import resource_stream
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 3027, in 
add_activation_listener(lambda dist: dist.activate())
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 741, in subscribe
callback(dist)
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 3027, in 
add_activation_listener(lambda dist: dist.activate())
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 2514, in activate
list(map(declare_namespace, self._get_metadata('namespace_packages.txt')))
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 2094, in declare_namespace
_handle_ns(packageName, path_item)
File 
"/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py", 
line 2059, in _handle_ns
raise TypeError("Not a package:", packageName)
TypeError: ('Not a package:', 'cgi')


The sys paths are

/usr/lib/python2.7/site-packages/pymongo-2.5.1-py2.7-linux-x86_64.egg
/usr/lib/python2.7/site-packages/bottle-0.11.6-py2.7.egg
/usr/lib/python2.7/site-packages/translationstring-1.1-py2.7.egg
/usr/lib/python2.7/site-packages/venusian-1.0a8-py2.7.egg
/usr/lib/python2.7/site-packages/zope.deprecation-4.0.2-py2.7.egg
/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg
/home/boopers/django-trunk
/usr/lib/python27.zip
/usr/lib64/python2.7
/usr/lib64/python2.7/plat-linux2
/usr/lib64/python2.7/lib-tk
/usr/lib64/python2.7/lib-old
/usr/lib64/python2.7/lib-dynload
/usr/lib64/python2.7/site-packages
/usr/lib64/python2.7/site-packages/FontTools
/usr/lib64/python2.7/site-packages/PIL
/usr/local/lib64/python2.7/site-packages
/usr/local/lib/python2.7/site-packages
/usr/lib64/python2.7/site-packages/gst-0.10
/usr/lib64/python2.7/site-packages/gtk-2.0
/usr/lib64/python2.7/site-packages/input-pad-1.0
/usr/lib/python2.7/site-packages
/usr/lib64/python2.7/site-packages/wx-2.9.4-gtk2

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Re: django-admin.py startproject mysite error

[Jay Lozier]

I get this

note: I have completely deleted any django packages on the my system and 
could get any version but the dev version to even get past the first step.
the dev 1.7 version would run django-admin.py startproject myfirstsite but 
now python manage.py runserver does not work
error in line 10

/usr/lib/python2.7/site-packages/pymongo-2.5.1-py2.7-linux-x86_64.egg
/usr/lib/python2.7/site-packages/bottle-0.11.6-py2.7.egg
/usr/lib/python2.7/site-packages/translationstring-1.1-py2.7.egg
/usr/lib/python2.7/site-packages/venusian-1.0a8-py2.7.egg
/usr/lib/python2.7/site-packages/zope.deprecation-4.0.2-py2.7.egg
/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg
/home/boopers/django-trunk
/usr/lib/python27.zip
/usr/lib64/python2.7
/usr/lib64/python2.7/plat-linux2
/usr/lib64/python2.7/lib-tk
/usr/lib64/python2.7/lib-old
/usr/lib64/python2.7/lib-dynload
/usr/lib64/python2.7/site-packages
/usr/lib64/python2.7/site-packages/FontTools
/usr/lib64/python2.7/site-packages/PIL
/usr/local/lib64/python2.7/site-packages
/usr/local/lib/python2.7/site-packages
/usr/lib64/python2.7/site-packages/gst-0.10
/usr/lib64/python2.7/site-packages/gtk-2.0
/usr/lib64/python2.7/site-packages/input-pad-1.0
/usr/lib/python2.7/site-packages
/usr/lib64/python2.7/site-packages/wx-2.9.4-gtk2

On Saturday, July 20, 2013 5:55:21 PM UTC-4, Jay Lozier wrote:
>
> Using openSUSE 12.3
> python 2.7.3
> django 1.5.1 installed manually and verified
>
> When I enter "django-admin.py startproject mysite" at the command prompt I 
> get the following traceback:
>
> Traceback (most recent call last):
> File "/usr/bin/django-admin.py", line 5, in 
> management.execute_from_command_line()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 453, in execute_from_command_line
> utility.execute()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 392, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 272, in fetch_command
> klass = load_command_class(app_name, subcommand)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 77, in load_command_class
> module = import_module('%s.management.commands.%s' % (app_name, name))
> File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 
> 35, in import_module
> __import__(name)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/commands/startproject.py",
>  
> line 2, in 
> from django.core.management.templates import TemplateCommand
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/templates.py", 
> line 20, in 
> from django.template import Template, Context
> File "/usr/lib/python2.7/site-packages/django/template/__init__.py", line 
> 53, in 
> from django.template.base import (ALLOWED_VARIABLE_CHARS, BLOCK_TAG_END,
> File "/usr/lib/python2.7/site-packages/django/template/base.py", line 18, 
> in 
> from django.utils.formats import localize
> File "/usr/lib/python2.7/site-packages/django/utils/formats.py", line 5, 
> in 
> from django.utils import dateformat, numberformat, datetime_safe
> File "/usr/lib/python2.7/site-packages/django/utils/dateformat.py", line 
> 25, in 
> from django.utils.timezone import is_aware, is_naive
> File "/usr/lib/python2.7/site-packages/django/utils/timezone.py", line 11, 
> in 
> import pytz
> File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 
> 
> from pkg_resources import resource_stream
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 709, in 
> subscribe
> callback(dist)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2465, in 
> activate
> map(declare_namespace, self._get_metadata('namespace_packages.txt'))
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2045, in 
> declare_namespace
> _handle_ns(packageName, path_item)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2010, in 
> _handle_ns
> raise TypeError("Not a package:", packageName)
> TypeError: ('Not a package:', 'cgi')
>
> How do I fix this?
>

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django-admin.py startproject mysite error

[Jay Lozier]

Using openSUSE 12.3
python 2.7.3
django 1.5.1 installed manually and verified

When I enter "django-admin.py startproject mysite" at the command prompt I 
get the following traceback:

Traceback (most recent call last):
File "/usr/bin/django-admin.py", line 5, in 
management.execute_from_command_line()
File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 453, in execute_from_command_line
utility.execute()
File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 272, in fetch_command
klass = load_command_class(app_name, subcommand)
File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 77, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 35, 
in import_module
__import__(name)
File 
"/usr/lib/python2.7/site-packages/django/core/management/commands/startproject.py",
 
line 2, in 
from django.core.management.templates import TemplateCommand
File 
"/usr/lib/python2.7/site-packages/django/core/management/templates.py", 
line 20, in 
from django.template import Template, Context
File "/usr/lib/python2.7/site-packages/django/template/__init__.py", line 
53, in 
from django.template.base import (ALLOWED_VARIABLE_CHARS, BLOCK_TAG_END,
File "/usr/lib/python2.7/site-packages/django/template/base.py", line 18, 
in 
from django.utils.formats import localize
File "/usr/lib/python2.7/site-packages/django/utils/formats.py", line 5, in 

from django.utils import dateformat, numberformat, datetime_safe
File "/usr/lib/python2.7/site-packages/django/utils/dateformat.py", line 
25, in 
from django.utils.timezone import is_aware, is_naive
File "/usr/lib/python2.7/site-packages/django/utils/timezone.py", line 11, 
in 
import pytz
File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 

from pkg_resources import resource_stream
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 

add_activation_listener(lambda dist: dist.activate())
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 709, in 
subscribe
callback(dist)
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 

add_activation_listener(lambda dist: dist.activate())
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2465, in 
activate
map(declare_namespace, self._get_metadata('namespace_packages.txt'))
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2045, in 
declare_namespace
_handle_ns(packageName, path_item)
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2010, in 
_handle_ns
raise TypeError("Not a package:", packageName)
TypeError: ('Not a package:', 'cgi')

How do I fix this?

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