Import error

[Emily N]

Hi django users,
I seem to have gotten a problem.

I created a helper class in my project and I have failed to import
the methods in it. Please help...

This is the error I get...

ImportError at /admin/

cannot import name random_password

Request Method:	GET
Request URL:	http://127.0.0.1:8000/admin/
Django Version:	1.3.1
Exception Type:	ImportError
Exception Value:	cannot import name random_password
Exception Location:	/home/emily/Documents/AskJarvis/Etutor/../Etutor/Prototype/views.py in <module>, line 1
Python Executable:	/usr/bin/python
Python Version:	2.7.2
Python Path:	['/home/emily/Documents/AskJarvis/Etutor', '/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', '/usr/local/lib/python2.7/dist-packages', '/usr/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']

[Marcin Tustin]

Please take a look at: Short, Self Contained, Correct Example

There's also some good advice at: What have you tried? - Matt Gemmell

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Marcin Tustin
Tel: 07773 787 105

[Emily]

Dear Marcin,

I do not understand.
I think I have done everything right and I am trying to find
the source of the error where if there is someone who has
experienced it they might be knowing where it is coming from..

Emily

[Marcin Tustin]

Dear Emily,

Do you expect us to already have a copy of your code? If not, we need to have a short, self-contained, and correct example demonstrating your issue.

Marcin

[Cal Leeming [Simplicity Media Ltd]]

Hi Emily,

Here is a really good article (written by the very people who contribute to this list) on how to ask questions on the mailing list:

https://code.djangoproject.com/wiki/UsingTheMailingList

It tells you what you can do to try and resolve the issue yourself, and what sort of information you need to provide so we can assist.

Cal

[Emily]

so your point is that I should post my code.
When I did that some time, I was told that
the people who were trying to help me did not
want to know what is in my code so I should just
explain what I want them to help me with.
But thank you any way, you point has been driven home.

[Kurtis Mullins]

Hey emily,

I think the other guys were just wanting to see your import statement that's broken. It should be something along these lines if you want to give it a try:

from myproject.myapp.myhelpers import random_password

Of course you'd substitute your project name, the application name, and then the python file that your "random_password" function/class is saved in.

Let me know if you need any more help!

Good luck!

- Kurtis Mullins

[Emily]

This is the views.py file

from helpers import random_password
from django.views.generic.edit import CreateView
from django.views.generic.list import ListView
from Prototype.forms import StudentForm, LecturerForm, PaymentForm
from Prototype.models import Guideline, Student, Lecturer, Payment
from Prototype.models import Course

class GuidelineListView(ListView):
    model = Guideline
    template_name = 'content.html'
    context_object_name = 'guidelines'

class Registration(CreateView):
    model = Student
    form_class = StudentForm
    template_name = "newAccount.html"
    success_url = "/Payment/"
    context_object_name = 'form'

    def send_sms(self):
        #send sms
        password = random_password()

    def post(self):
    '''generate password and send it to the user.'''
        return Super(Register, self).post()
       
class NewLecturer(CreateView):
    model = Lecturer
    form_class = LecturerForm
    template_name = "newAccount.html"
    success_url = "/login/"
    context_object_name = 'lecturer_form'

class CourseListView(ListView):
    model = Course
    template_name = 'index.html'
    context_object_name = 'courses'

class Payment(CreateView):
    model = Payment
    form_class = PaymentForm
    template_name = 'Payment.html'
    success_url = "/login/"
    context_object_name = 'payments'

[Emily]

This is the class I created...

import string
import random

class Helpers:

    def random_password():
        '''a method to generate random password'''
        lengthOfPassword = random.randint(6,10)
        password_len = lengthOfPassword
        password = []

        for group in (string.ascii_letters, string.punctuation, string.digits):
            password += random.sample(group, 3)

            password += random.sample(
                 string.ascii_letters + string.punctuation + string.digits,
                 password_len - len(password))

            random.shuffle(password)
            password = ''.join(password)

            return password

    def sendSMS():
        '''a method to send sms to a user'''
        pass

[Adrian Bool]

Hi Emily,

On 22 Jun 2012, at 15:46, Emily wrote:

> This is the class I created...
>
> import string
> import random
>
> class Helpers:
>
> def random_password():

Take random_password outside of the Helpers class and you should be OK. On the import statement you need to refer to a 'top level object' within the imported file. The only top level object you have is the class Helpers - which it doens't look like you really need.

Cheers,

aid

[Daniel Roseman]

+1. Python is not Java. Don't use a class unless you're encapsulating data.

--

DR. 

[Kurtis Mullins]

+1 on pulling the "random_password()" method out of the Class and setting it up as a module object.

I'd still suggest using this sort of an import statement on it, though:

from myproject.myapp.helpers import random_password

Where in this example you'd substitute your Project name with "myproject", the app name with "myapp" and the this particular python file with "helpers.py".

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[Emily]

Kurtis, Adrian and Daniel,

thank you so much for your help, it actually worked
I have programmed in java 70% of my life

Now I want to send sms to my users when they sign up
in the website. There is some package I have seen which looks
like it is from an email to the phone. Does it work with messages
from a website to a phone...

Emily

[Derek]

Emily

If you are starting a new topic, please start a new thread - and again, as per the guidelines for using the mailing list that Cal referred to, the more specific your question, the more chance of getting a reply. :)