Django community: Django Q&A RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django Autocomplete Light create new choice
I have been working through the following tutorial provided for Django Autocomplete Light: https://django-autocomplete-light.readthedocs.io/en/master/tutorial.html I have successfully implemented autocompletion for one of the fields in my form, however I am unable to complete the following section: https://django-autocomplete-light.readthedocs.io/en/master/tutorial.html#creation-of-new-choices-in-the-autocomplete-form The documentation states that I should be able to add in a feature which allows the user to create a new choice in the form if their required choice is unavailable. However the tutorial is not particularly clear in explaining how to do this. I am trying to implement a form in which the user: Selects from an autocompleting list of Categories Selects a Message corresponding to the chosen Category If the Category or Message they wish to choose is not available, they should be able to add to the existing choices I have this partly implemented, but it does not appear to work correctly as if no Category is selected, the drop down for the Messages displays the list of Categories. However, if a Category is selected, the correct Messages are displayed as required. models.py class Category(models.Model): name = models.CharField(max_length=20, default="Empty",primary_key=True) def __str__(self): return self.name class Message(models.Model): category = models.ForeignKey('Category',on_delete=models.CASCADE,null=True,blank=True) text = models.CharField(max_length=200,default="No message",primary_key=True) def __str__(self): return self.text forms.py class FeedbackForm(autocomplete.FutureModelForm): optional_message ... -
How do I implement a machine learning model trained by python to a webpage?
In spyder, I have trained a Naive Bayes classifier for predicting whether or not a school will be canceled base on the amount of snow and other features. So, my question is two parts. First, how do I make a website so that a user can input the snow and temperature, and when the user clicks a button, the classifier (which is in python) can spit out a response? Do I have to use Django for that (so that everything is in python and would maybe make stuff easier)? Second, How do I save the classifier so that the model doesn’t have to be trained every time? -
React calling Django API CSRF
Yo guys , I'm doing a frontend react that call a Django api. I ve got a big problem : I want to call a Django API with reactjs but the API need a csrf and I have no idea how i could get that csrf, after looking on internet, i saw some people using function other telling that the django api need a route that retrun the token. I'm totally lost. my discord if needed Wadi #1916 -
ERROR: could not open extension control file "/usr/pgsql-9.6/share/extension/postgis.control": No such file or directory
I want to deploy my project to VPS Centos7. But i am getting error while installing postgres. When i type create extension postgis; Getting error ERROR: could not open extension control file "/usr/pgsql-9.6/share/extension/postgis.control": No such file or directory Because postgis.contol is located in another place, find /usr -name postgis.control /usr/share/pgsql/extension/postgis.control But postgres trying to create it from /usr/pgsql-9.6/share/extension/postgis.control This question already was asked before, but my problem is other. -
Confused about modeling relations for feedback in django
New to Django. I'm trying to develop a Feedback module, but designing a database structure makes me confused for various reasons: Where do I need to store feedback_score(positive/neutral/negative feedback ratio), should it be put in custom User, or somewhere else? How should I get the recipient of the feedback credentials, should it be passed by URL, how to link recipient to FeedbackModel in class-based-views? How to feedback_score to be calculated each time for every User? models.py User = get_user_model() # Create your models here. class FeedbackModel(models.Model): id = models.AutoField(primary_key=False, db_column='id') sender = models.ForeignKey( User, on_delete=models.CASCADE, primary_key=False, related_name='feedback_left_by') # recipient = models.ForeignKey( # User, # on_delete=models.CASCADE, # primary_key=True) FEEDBACK_OPTION = ( (-1, 'Negative'), (0, 'Neutral'), (+1, 'Good'), ) feedback = models.IntegerField(choices=FEEDBACK_OPTION) opinion = models.CharField(max_length=255) class Meta: ordering = ['left_by', '-id'] urls.py from django.urls import path from . import views app_name = 'feedback' urlpatterns = [ path('leave_feedback/<str:left_to>/', views.leave_feedback.as_view(), name='leavefeedback'), ] views.py from django.shortcuts import render, reverse from django.views.generic import TemplateView, CreateView from django.contrib.auth.decorators import login_required from django.utils.decorators import method_decorator from .models import FeedbackModel decorators = [login_required] @method_decorator(decorators, name='dispatch') class leave_feedback(CreateView): model = FeedbackModel fields = ['feedback', 'opinion'] success_url = '/' #template_name = "feedback/leave_feedback.html" def form_valid(self, form): form.instance.sender = self.request.user # ? return ... -
Return type of the save() method of form of Django
I am beginner learning to create registration form here. Here is the register view class which I had written earlier. def register(request): registered= False if request.method=="POST": user_form= UserRegistrationForm(data=request.POST) profile_form= UserProfileInfoForm(data=request.POST) if user_form.is_valid() and profile_form.is_valid(): print(type(user_form.save())) user_form.set_password(user_form.password) user_form.save() profile_form.save(commit=False) profile_form.user=user_form if 'profile_pic' in request.FILES: profile_form.profile_pic=request.FILES('profile_pic') profile_form.save() registered=True else: print(user_form.errors,profile_form.errors) else: user_form=UserRegistrationForm() profile_form=UserProfileInfoForm() return render(request,'basic_app/register.html', {'user_form':user_form, 'profile_form':profile_form, 'registered':registered}) This is gives me the error that my user_form object has no set_password() method. I then changed my code by saving the "user_form" into another instance named "user". Here is my new code. I have added an additional print function to check the type of the two objects. def register(request): registered=False if request.method=="POST": user_form=UserForm(data=request.POST) profile_form=UserProfileInfoForm(data=request.POST) if user_form.is_valid() and profile_form.is_valid(): user=user_form.save() print(type(user_form)," ",type(user)) user.set_password(user.password) user.save() profile=profile_form.save(commit=False) profile.user=user if 'profile_pic' in request.FILES: profile.profile_pic=request.FILES['profile_pic'] profile.save() registered=True else: print(user_form.errors,profile_form.errors) else: user_form=UserForm() profile_form=UserProfileInfoForm() return render(request,'basic_app/register.html', {'user_form':user_form, 'profile_form':profile_form, 'registered':registered}) The output for the print statement gave this <class 'basic_app.forms.UserRegistrationForm'> <class 'django.contrib.auth.models.User'> I do not understand howcome their type is different when both are instances of the same form. Also why did the first code didn't work when the second one did. Its my first question on SO. Thank you. -
Retrieve all Chats that have a certain participating user
I have a Chat model in that has a field called users. How could I retrieve all of the Chats, whose users field has a CustomUser with a certain username? There is a ManyToMany relationship between Chats and CustomUsers. I've tried the following, but it doesn't work: user = CustomUser.objects.get(username=username) chats = Chat.objects.filter(users__in=user) -
Django 2.1: How to get a list of objects that in each object, contains the objects that have a foreign key pointing to them
I have these two classes: Class A: data Class B: a = models.ForeignKey(A) How can I get an array of A in which each A contains the B's related to them? I need it because I must return the two tables joined in a JSON. -
Edit form if it exists in model django
I want a form to load with existing data if it exists and if not load a new form. THe problem is that when it loads existing data and i edit it and submit again,the data is not changing in the model or it takes form invalid.It saves with the previously entered data itself my forms.py: class StudentTaskForm(forms.ModelForm): title = forms.CharField(widget=forms.TextInput(attrs={'class': 'form- control',' type': "text",'placeholder':'Enter Title'})) content = forms.CharField(widget=SummernoteWidget()) class Meta: model = Task fields = [ 'title', 'content', ] widgets = { 'content': SummernoteWidget(), } def __init__(self, *args, **kwargs): super(StudentTaskForm, self).__init__(*args, **kwargs) instance = getattr(self, 'instance', None) class ImageForm(forms.ModelForm): image = forms.ImageField(label='Image') class Meta: model = Images fields = ('image', ) In my views: todo = Task.objects.filter(todo=qs, student=request.user) print("TODOS",todo) verification = Verification.objects .filter(task__in=todo,is_accepted=True,is_rejected=False) if todo.exists() and verification.exists(): messages.error(request, 'You already completed this task') return redirect('student:level-detail', pk=instance.id) task =Task.objects.filter(todo=qs, student=request.user) Task.objects.filter(todo=qs, student=request.user).update(is_verified=False) if task.exists(): print("ENTO") form = StudentTaskForm(instance=task[0]) else: print("ALLA") form = StudentTaskForm(request.POST or None, request.FILES or None) if form.is_valid(): form.instance.user = User.objects.get(id=request.user.id) obj = form.save(commit=False) obj.student = request.user obj.todo = qs obj.level = instance obj.save() else: print("ERROR",form.errors) ImageFormSet = inlineformset_factory(Task,Images, form=ImageForm,min_num=0, max_num=3, validate_min=True,extra=3) if request.method == 'POST': formset = ImageFormSet(request.POST, request.FILES, instance=task[0]) if formset.is_valid(): formset.save() return redirect('student:dashboard') else: formset ... -
Passing a model function to geojson serializer in GeoDjango
Ok, I am trying to add a function defined inside a model (called Highway) to the HttpResponse of the model (Highway) after serializing with geojson serializer without success. I'm trying to find a solution by going through the source code as no errors are passed and the property does not appear in the HttpResponse. I might however be complicating things and hopefully can get another eyes on this. Thank you! The item appears correctly when passing it to the admin site and all other fields (not shown below) work as intended. PS. I'm quite new to the whole Django system. geom.models.py class Highway(models.Model): name = models.CharField(max_length=50, unique=True) length = models.IntegerField("Length in meters") mline = models.MultiLineStringField("Geometry", srid=4326) def cameras_per_km(self): count = self.location_set.filter(location__icontains="camera").count() return round(count/(self.length/1000),1) cameras_per_km.short_description = "Cameras/km" class Location(models.Model): location = models.CharField(max_length=30, unique=True) highway = models.ForeignKey(Highway, null=True, on_delete=models.SET_NULL) point = models.PointField() geom.admin.py (when passing the func to list_display the item appears correclty in admin) class HighwayAdmin(LeafletGeoAdmin): list_display = ('name', 'cameras_per_km') admin.site.register( Highway, HighwayAdmin, ) geom.views.py (this doesn't) def geojson_highway_all(request): geojsonformat = serialize('geojson', Highway.objects.all(), geometry_field='mline', fields = ( 'pk', 'cameras_per_km' # <-- I want this to show ) ) return HttpResponse(geojsonformat) geom.urls.py from django.urls import path from . import views app_name = ... -
Count and group by foreign key and return model django
Data Model: Each Store has many Books Each Book may or may not be read by a User dictated by the UserBookReceipt Objective: Given a user, order the libraries by how many pages they have read at each library. Example: User 1 has read: 2 Books from Library 1 5 Books from Library 2 1 Book from Library 3 0 Books from Library 4 We should return the libraries in order of number of books read by User 1 ie: Library 2, Library 1, Library 3 Current solution libraries = (UserBookReceipt.objects .filter(user=user) .values('book__library') .annotate(rcount=Count('book__library')) .order_by('-rcount') ) Actual output [ {'book_library': 2, 'rcount': 5}, {'book_library': 1, 'rcount': 2}, {'book_library': 3, 'rcount': 1} ] Expected output [ {'book_library': <Library: 2>, 'rcount': 5}, {'book_library': <Library: 1>, 'rcount': 2}, {'book_library': <Library: 3>, 'rcount': 1} ] The actual output is 90% of what I want, except I want the book_library value to be instances of the django Library model rather than just the library id. Otherwise, I have to make another query for retrieve the Library objects which would probably require some inefficient ids__in query. How can I count and group by the UserBookReceipt.book__library and return the Library model? If I were to do this ... -
Error handling while using chain of groups in celery
I have 100 tasks. But I want to process only 4 tasks at a time. Once these 4 tasks get completed i want to run the next set of 4 tasks. This can be done by grouping tasks in sets of 4 and then chaining them. But some tasks may fail in between, how can I handle these errors and take appropriate actions, so that I retry for only the tasks that failed. As per my knowledge in a chain if one task fails, the subsequent tasks in the chain will not run. So if I implement chain of groups, if any tasks in a group fails, the entire chain will fail. Suggest me a proper error handling method for this, also any better idea for implementing this will be appreciated. A little background - I have a cron running every 30s implemented using celery-beat which picks up 100 new tasks at a time. So all these chaining and grouping has to be done inside the cron function. -
Django rest api google authentication
Hello I stuck in trouble with authentication using Google Gmail platform. I know that there is a lot of topics mention the same situation but none of them help me. That's why I am asking for the brief explanation how to generate this. The first question is - if I am using social-auth-app-django==3.1.0, then facebook API(which is working) works in the same flow as Google Api ? The second question is when I was looking and searching for the answer I found out someone mentioned that Google Gmail api for register user is not working in local preproduction, which I understand like "If I have no domain then it doesn't work" ? In the last part of my question I would try to desribe what kind of problem occur even if I am trying develop everything in the same way like some tutorials show.. At first I tried to put necessary things inside setting.py file: AUTHENTICATION_BACKENDS = ( 'social_core.backends.facebook.FacebookOAuth2', 'social_core.backends.open_id.OpenIdAuth', 'social_core.backends.google.GoogleOpenId', 'social_core.backends.google.GoogleOAuth2', 'django.contrib.auth.backends.ModelBackend', ) SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = '***' SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = '***' Then just create url: path(r'^oauth/', include('social_django.urls', namespace='social')), And that's it, I don't want yet to create any more complex functionalities, before I didn't get a result to redirect for Google ... -
WrappedAttributeError 'IsAdminUser' object has no attribute 'authenticate'
I'm using Django Rest Framework with permission_classes to create an API. My understanding is that once I go to that API with an unauthenticated user I should be redirected to the login form, right? Instead, I get the following error: WrappedAttributeError at /sessions/api/listPatients/ 'IsAdminUser' object has no attribute 'authenticate' There's no redirect to the login form... and I don't understand why. Why is this happening? What am I doing wrong? How to fix that? Here's the urls.py: path('api/getSessions/', views.GetSessions.as_view(), name="GetSessionsAPI"), And here's the view: class GetSessions(generics.ListCreateAPIView): permission_classes = (permissions.IsAuthenticated,) serializer_class = SessionSerializer def get_queryset(self): if self.request.user.is_authenticated: return Session.objects.filter( patient__created_by_user=self.request.user) else: raise PermissionDenied -
Create Download PDF File and store it into a Model
I've created a PDF Creator with WeasyPrint and included the download function. Is it now possible to store that PDF File immediately into a Model-FileField (called Invoice)? How should this code look like? def generate_pdf(request): # Rendered html_string = render_to_string('bills/pdf/invoice.html', context) html = HTML(string=html_string, base_url=request.build_absolute_uri()) result = html.write_pdf(stylesheets=[CSS(settings.STATIC_ROOT + '/css/bills.css')], presentational_hints=True); # Creating http response response = HttpResponse(content_type='application/pdf;') invoice_number = context['invoice_id'] filename = "Invoice" + str(invoice_number) + ".pdf" response['Content-Disposition'] = 'inline; filename="{}"'.format(filename) pdf_file = HTML(string=html_string, base_url=settings.MEDIA_ROOT).write_pdf() temp = tempfile.NamedTemporaryFile() temp.write(pdf_file) temp.seek(0) new_bill = Invoice(invoice_no=billNumber, invoice_file=temp) new_bill.save() response['Content-Transfer-Encoding'] = 'binary' with tempfile.NamedTemporaryFile(delete=True) as output: output.write(result) output.flush() output = open(output.name, 'rb') response.write(output.read()) download = request.GET.get("download") if download: content = "attachment; filename='%s'" %(filename) response['Content-Disposition'] = output return response -
Django ConnectionAbortedError
After running the django server i get this error. I've searched a lot, but could not find any solution to this problem. Traceback (most recent call last): File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 138, in run self.finish_response() File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 180, in finish_response self.write(data) File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 274, in write self.send_headers() File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 332, in send_headers self.send_preamble() File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 255, in send_preamble ('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1') File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py", line 453, in _write result = self.stdout.write(data) File "C:\Users\Adil\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py", line 796, in write self._sock.sendall(b) ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine Is there any way to solve it? I got latest Python and Django versions. Django version 2.1.3. Python 3.7.1 Thanks in advance -
Tournament draw with django
I am making a website by using django framework and mysql. I am making this website as a Karate event management systems. So After getting the list of registered players from mysql database to the front end, I want to make a draw. (Knockout matches with byes). when the competetion starts, the user could be able to select the player from the draw. Then that playe's name should be displayed in the next round of the draw. After refreshing the draw, Draw should be as the last updated moment. Is there any idea to do it? I have spent lots of time to it. But still I couldn't do it. Can any one help me. -
how to render html page after ajax success from django backend
I want to render html page after ajax success. but i am not getting the proper path for the file. I am using django backend. I am not using django inbuilt function to authenticate. this is my python code. this is the error this is my project structure //this is my javascript code function admin_login(){ username = document.getElementById("username").value; password = document.getElementById("password").value; console.log(username+password); data={ "username":username, "password":password } $.ajax({ type: 'POST', url: "http://127.0.0.1:8000/admin_login/", data:JSON.stringify(data), success: function(data) { console.log('sucessfully loggedin') window.location.href = "/chat/templates/user.html"; } }); } -
form getting into not valid before sumbitting django
views.py: task =Task.objects.filter(todo=qs, student=request.user) Task.objects.filter(todo=qs, student=request.user).update(is_verified=False) if task.exists(): print("ENTO") form = StudentTaskForm(instance=task[0]) else: print("ALLA") form = StudentTaskForm(request.POST or None, request.FILES or None) if form.is_valid(): form.instance.user = User.objects.get(id=request.user.id) obj = form.save(commit=False) obj.student = request.user obj.todo = qs obj.level = instance obj.save() else: print("ERROR",form.errors) obj=None obj.save() ImageFormSet = inlineformset_factory(Task,Images, form=ImageForm,min_num=0, max_num=3, validate_min=True,extra=3) if request.method == 'POST': formset = ImageFormSet(request.POST, request.FILES, instance=obj) if formset.is_valid(): formset.save() return redirect('student:dashboard') else: formset = ImageFormSet(queryset=Images.objects.none()) Im using django forms and inline formset for saving images for a particular task ... I want the inputs to be saved if the user has already entered the inputs . if task.exists() ,load existing form . The problem is it is gettting into else loop before even going to the form page.HOw do i resolve this?form.errors() are not getting printed -
Retrieving metadata from a post, then sorting posts by said metadata in django
I have two interconnected models in my blog app; Category and Post. The blog front page displays a list of posts and their corresponding metadata, like it should; fairly standard stuff. Aside from displaying the posts on the front page, they're also displayed on the individual user's profile page in short form (just the category and the headline). What I'm interested in doing is sorting all the posts that belong in a category, however the only way I've managed to make it work is something like this: NEWS some title NEWS another title PYTHON another arbitrary title NEWS yet another title I'd like to sort it thusly instead: NEWS some title another title yet another title PYTHON another arbitrary title Alas, my mind keeps turning into a bowl of spaghetti when I try to come up with a method, so without further ado; how should I go about this bit? I reckon that there's something off with calling the category from the post's metadata only to try and categorize the posts via the retrieved data, but aside from that, I'm somewhat lost. Here's the template snippet from user_profile.html: {% if user.post_set.exists %} <p> {% for post in user.post_set.all|dictsortreversed:"date_posted" %} <span ... -
Django permissions are not getting cached
I am using django 1.11, postgres with @permission_required decorator in my django views. The problem is that for any view, I get 2 extra SQL queries - 1) SELECT ••• FROM "auth_permission" INNER JOIN "account_myuser_user_permissions" ON ... 2) SELECT ••• FROM "auth_permission" INNER JOIN "auth_group_permissions" ON ... The Django docs state that - The ModelBackend caches permissions on the user object after the first time they need to be fetched for a permissions check. I am unable to understand why the permissions are not getting cached the first time, or am I missing something? -
Define a file path for saving uploaded file by users in Django
Consider if we have a form which contains a field to upload a file by users like this : class PoscastForm(forms.ModelForm): class Meta: fields = ("title", "message", "channel", "file", "tag") model = models.Podcast def __ini__(self, *args, **kwargs): user = kwargs.pop("user", None) super().__init__(*args, **kwargs) if user is not None: self.fields["channel"].queryset = ( models.Channel.objects.filter( pk__in = user.channels.value_list('channel__pk') ) ) And the Podcast model: class Podcast(models.Model): title = models.CharField(max_length=255, default='') user = models.ForeignKey(User, related_name="podcasts", on_delete=models.CASCADE, unique=False) created_at = models.DateTimeField(auto_now=True) channel = models.ForeignKey(Channel, related_name="podcasts", null=True, blank=True, on_delete=models.CASCADE) message = models.TextField(blank=True, null=True) message_html = models.TextField(editable=False) tag = models.ForeignKey('podcasts.Tag', related_name="podcasts", null=True, blank=True, on_delete=models.CASCADE) file = models.FileField(blank=True, null=True, default='') So when a user upload his attach file it will save in root directory of my project! How can I change the direction path? The view for this form is look like this : class CreatePodcast(LoginRequiredMixin, SelectRelatedMixin, generic.CreateView): fields = ("title", "message", "channel", "file", "tag") model = models.Podcast def form_valid(self, form): self.object = form.save(commit=False) self.object.user = self.request.user self.object.save() return super().form_valid(form) -
GraphQL/Graphene for backend calls in Django's templates
I just installed Graphene on my Django project and would like to use it also for the back-end, templating. So far, I find just tutorials how to use it only for front-end, no mention about back-end. Should I suppose that it is not a good idea to use it instead of a SQL database? If yes, then why? Is there a downside in the speed in the comparison to a SQL databases like MySQL? What's the best option how to retrieve the data for templates in Python? I mean, best for the performance. Thnx. -
I am getting a double login form with 2 usernames and passwords
I am getting 2 username and password fields on my login page. I tried to make a custom django authentication login page. The first username and password field that appeared on my page is the default login page given by django whereas the second pair is the formatted one which I tried to create using bootstrap. Here are my files: Here is my login.html div class="container"> <form method="POST"> {% csrf_token %} <div class="form-group"> {{form.as_p}} </div> <button type="Submit" class="btn btn-primary"> Log In </button> </form> </div> loginform.py from django import forms from django.contrib.auth.forms import AuthenticationForm class LoginForm(AuthenticationForm): Username = forms.CharField(widget=forms.TextInput(attrs={'class':'form-control'})) Password = forms.CharField(widget=forms.PasswordInput(attrs={'class':'form-control'})) urls.py from django.urls import path from . import views from django.contrib.auth.views import login,logout from .loginform import LoginForm urlpatterns = [ path('', views.HomePageView, name='home'), path('accounts/login', login, {'authentication_form' : LoginForm},name='login'), path('accounts/logout',logout,name='logout') ] -
Django can not save the model inside restless Endpoint
I'm facing with a very strange issue. Basically I've written a JSON interface which a remote server would feed it with log data about a batch. I'm adding each JSON data to BatchStatusLog table, and last log contains extra information about the batch and I'm trying to update the batch with last request. Problem starts here; There are no exception on logs both on local and remote server, everything seems fine. Even I see the log lines after batch.save() but batch could not be updated successfully on database. The strangest one, I've written a small script to mimic server, and it could update the batch!! There is something that I can not see. from restless.views import Endpoint from restless.auth import BasicHttpAuthMixin, login_required from api.authentications import CustomAuthMixin from api.utils import date_with_tz_from_timestamp from splitter.models import Batch, BatchStatusLog class BatchStatusLogEndpoint(Endpoint, BasicHttpAuthMixin): def post(self, request): if request.data is None: return {'is_valid': False, 'message': 'No data'} try: data = request.data['data'] entry = data['status_entry'] batch_id = entry["batch_id"] message = entry["text"] state = entry["state"] item = entry["item"] total_items = entry["numOfItems"] timestamp = entry["timestamp"] except Exception as e: print('EXCEPTION: ' + str(e)) return {'is_valid': False, 'message': 'key {0} is required'.format(str(e))} try: batch = Batch.objects.get(id=batch_id) except Batch.DoesNotExist as e: ...
