PyCharm doesn’t understand the requirements correctly – Python, Django
Usually the requirements for displaying requirements.txt are as follows: django-registration But in INSTALLED_APPS it looks like registration. So when you import: from registration.signals import user_registered This works, but PyCharm is outputting a red wavy line under the word registration of from registration…, which says “Package ‘Registration’ Is it listed in the project requirements?”. How can I solve this problem? UPDATE I was able to find a way to make the warning go away, but it’s not a good solution. If you just add the package name to the requirements.txt file, the warning goes away, but The requirement is invalid if you want to install pip. For example, I am also using pygooglevoice how it is written, requirements.txt but when When importing it in the code, you wrote: from googlevoice import Voice This seems strange because I use PyCharm in a lot of projects and I just noticed that the project I was working on recently… 1> MrJ..: This seems to be an open question https://youtrack.jetbrains.com/issue/PY-11963 2> nicorellius..: After seeing this again, I did some more digging. Set some folders as source root and After restarting PyCharm, these reference warnings disappeared. I think this is a bug in PyCharm. I have…
Django, how to generate admin panel without models? -Django,howtogenerateanadminpanelwithoutmodels?
I’m building a rather large project, that basically consists of this: I’m building a fairly large project that basically consists of: Server 1: Ice based services. Glacier2 for session handling. Firewall allowing access to Glacier2. Server 1: Ice based service. Glacier2 is used for session handling. Firewall allows access to Glacier2. Server 2: Web interface (read, public) for Ice services via Glacier2. Admin interface for Ice services via Glacier 2. Server 2: Web interface (read, public) provided for the Ice service through Glacier2. Provides management interface for Ice services through Glacier 2. The point I’m concerned with is the web interface. I want to use Django, because it’s both written in python and has that incredibly useful automatic admin panel generator. My concern is the web interface. I want to use Django since it’s all written in python and has a very useful automatic admin panel generator. The web interface doesn’t access any database. It connects to an Ice service on Server #1 via the Glacier2 router and uses the API exposed by those services to manipulate data. The web interface does not access any database. It connects to the Ice services on Server#1 through the Glacier2 router and uses…
Django, logout user when they leave site – Django, logout user when they leave site
I want to be able to automatically log users out when they leave my Django site. Not just when they close the browser, but whenever they navigate away to a different site. Is this possible? I want to be able to automatically log users in when they leave my Django site. Not only when they close their browser, but also when they navigate to a different site. is it possible? I’m displaying sensitive data to the user, and if they were to go to a new URL, and then hit the back button, I don’t want the sensitive data displayed. I want them to be forced to log back in. I’m showing sensitive data to the user and I don’t want the sensitive data to be shown if they were to go to a new URL and then hit the back button. I hope they are forced to log back in. Is this possible? Or is this something I would have to do on the front end? Is this possible? Or is this something I have to do on the front end? Thanks in advance! Thanks in advance! 1 solution #1 1 Checkout this answer on how to detect when…
Django, Python common interview questions
1. django 1. Middleware Middleware is generally For authentication or batch request processing, the middleware in Django is actually a class. After the request and completion, Django will execute the corresponding method in the middleware at the appropriate time according to its own rules. , view, process_response method 2. The respective advantages of Django, Tornado, and Flask Django: Django has no socket, and the purpose of django is to facilitate and quickly develop, and Following the MVC design, multiple components can conveniently serve the entire framework in the form of “plug-ins”. Django has many powerful third-party plug-ins. Django is highly scalable. Tornado: It is a non-blocking server, and it is very fast, thanks to its non-blocking method and the use of epoll, Future object, disadvantages: no session, needs to be customized Flask: It is a micro web Framework, used with SQLALchemy, jinja2 template, werkzeug interface Python: 3.5 Linux: 6.8 4, Django’s template comments are like Single: {#Note#} Multi -line Note: {%comments %} 5. How does Django achieve concurrency nginx does not have enough concurrency? Its superiority is highlighted in purely static web services, because the bottom layer uses the epoll asynchronous IO model for processing. 6. Do you…
Django, Python3 and Postgres-mod_wsgi issues
I’m trying to configure a Django test application for a personal project. I have previous experience with Django, but this is strictly Python 2.7.x. I want to start using 3.x if possible, and this project seems like a good place to start . Backend is a standard Postgres 9.4 installation, Apache 2.4, Python 3.4 in virtualenvwrapper, the operating system is OSX 10.10. mod_wsgi and mod_wsgi3 have been installed via homebrew. However, there is an issue getting mod_wsgi and mod_wsgi3 to work with python 3. Specifically, ./manage.py runserver 8080 works fine, but when I try to use Apache’s virtual host configuration, I got it mod_wsgi (pid=29906): Target WSGI script ‘/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py’ cannot be loaded as Python module. mod_wsgi (pid=29906): Exception occurred processing WSGI script ‘/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py’. Traceback (most recent call last): File “/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py”, line 28, in application = get_wsgi_application() File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/core/wsgi.py”, line 14, in get_wsgi_application django.setup() File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/__init__.py”, line 21, in setup apps.populate(settings.INSTALLED_APPS) File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/apps/registry.py”, line 108, in populate app_config.import_models(all_models) File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/apps/config.py”, line 197, in import_models self.models_module = import_module(models_module_name) File “/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py”, line 37, in import_module __import__(name) File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/contrib/auth/models.py”, line 40, in class Permission(models.Model): File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/base.py”, line 125, in __new__ new_class.add_to_class(‘_meta’, Options(meta, **kwargs)) File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/base.py”, line 300, in add_to_class value.contribute_to_class(cls, name) File “/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/options.py”, line…
Django, how to get the user by id, using django.contrib.auth.models.User
I don’t know how to get the user from a django model, django.contrib.auth.models.User, by id… I want to delete a user, so I’m trying to find it: User.objects.get(id=request.POST[‘id’]) But it doesn’t work and returns User matching query does not exist. id sent by ajax: $(“#dynamic-table”).on(‘click’,’.member_delete_btn’, function() { if (confirm(“Are you sure? the member will be deleted…”) == true) { $.ajax({ type: “POST”, url: “/panel/member/delete/”, data: { id: $(this).attr(‘data-id’), ‘csrfmiddlewaretoken’: ‘{{ csrf_token }}’ }, success: function (data) { if(data.success) { $(‘#result’).html(‘ Well done! Member deleted.’); list_members(); }else{ $(‘#result’).html(‘ Warning! Member not deleted.’); } }, error: function (data) { alert(“failure:” + data.error); } }); } else { return false; } return false; }); I debugged it and it didn’t matter, the user exists in the database with the correct ID What do I do? Is there a way to delete a django user instance? Thanks 1> levi..: This is the way to achieve it, the problem here is that the user you requested does not exist .If you want to handle this situation, use: try: user_id = int(request.POST[‘id’]) user = User.objects.get(id=user_id) except User.DoesNotExist: //handle the case when the user does not exist. Additionally, you need to convert your ID to Int.
Chapter 7: Spatial query and rolling shutter operation [ecotourism web system development example based on Vue, Django, supermapiserver and gerapy]
This chapter mainly introduces the use of supermap iserver series APIs for spatial query and rolling shutter analysis. Spatial query includes geometry query, attribute query and buffer query，The code is as follows： Geometry query //Geometric query———Geometry query>▲ Query囗Query Attribute Query ———Region Query>   Query Buffer Query ———Buffer query>SelectQuery Effect： Implement rolling shutter operation on webgl，The code is as follows&# xff1a; {{ label }}Year201020152020 Year Luminous remote sensing image {{ label1 }}year201020152020 The above code can select the year of the roller shutter through the drop-down box
Python, Django, error message: TypeError: abyteslikeobjectisrequired, not’str’
My code，a test class： class LoginActionTest(TestCase): # Test login action def setUp(self): User.objects.create_user('admin1','admin1@qq.com','admin123456') #Data initialization&# xff0c;Create a user def test_login_action_username_password_null(self): # Account password is empty testdata1={'username':'' ,'password':''} response1=self.client.post('/login_action/',data=testdata1 ) self.assertEqual(response1.status_code,200) self.assertIn('Wrong username or password',response1.content) After running The error is reported as follows： Then I searched online for this error report ，It basically means there is an escaping problem，Reference document： https://stackoverflow.com/questions/45250235/ flask-unit-testing-and-not-understanding-my-fix-for-typeerror-a-bytes-like-obj https://blog.csdn.net/qq_41185868/article/details/ 83833262 https://www.cnblogs.com/zhaijiahui/p/6926159.html Then I tried to print out my response1.content， and found that in the printed content There is a b， as shown below. Solution： ;According to those reference documents, “then I now have two methods”: one is to remove the b, and the other is to transfer it again. I didn’t check how to remove b，Here I used the second method，The code is as follows： self.assertIn(' Username or password is wrong', response1.content.decode('utf-8')) Solved Redirect: https://www.cnblogs.com/ss0202go/p/11099306.html
Django, database API reference for data model creation (reprinted)
Once the data model is created, there will naturally be a need to access data. This document introduces the database abstraction API derived from models, and how to create, obtain and update objects. Throughout this reference, we will refer to the following Poll application: class Poll(models.Model): slug = models.SlugField(unique_for_mOnth=‘pub_date‘) question = models.CharField(maxlength=255) pub_date = models.DateTimeField() expire_date = models.DateTimeField() def __repr__(self): return self.question class Meta: get_latest_by = ‘pub_date‘ class Choice(models.Model): poll = models.ForeignKey(Poll, edit_inline=models.TABULAR, num_in_admin=10, min_num_in_admin=5) choice = models.CharField(maxlength=255, core=True) votes = models.IntegerField(editable=False, default=0) def __repr__(self): return self.choice And the following simple conversation: >>> from datetime import datetime >>> p1 = Poll(slug=‘whatsup‘, question=”What‘s up?”, … pub_date=datetime(2005, 2, 20), expire_date=datetime(2005, 4, 20)) >>> p1.save() >>> p2 = Poll(slug=‘name‘, question=”What‘s your name?”, … pub_date=datetime(2005, 3, 20), expire_date=datetime(2005, 3, 25)) >>> p2.save() >>> Poll.objects.all() [What’s up?, What’s your name?] How queries work Django’s data query is based on building a result set and taking values from the result set. The result set is a collection of data objects that meet a certain query condition, independent of the database. This is a lazy collection: when retrieving the set Before the value, there is no way to know what members the set has. To generate a…
Django, nginx cannot load static files
I wrote a Django demo under Linux. When I run it with python manage.py runserver, can be displayed correctly. When nginx and gunicorn are added, static files cannot be loaded. Display: NOT Found: /static/blog/css/bootstrap.min.css nginx configuration is as follows: 12345678910111213 server { charset utf-8; listen 80; server_name example.com; location /static { > alias /home/chris/sites/blog_demo/static; } location / { proxy_pass http ://localhost:8080/; } } Test nginx configuration file: 1 sudo nginx -t #test is successful gunicorn running code is as follows: 1 gunicorn -b localhost:8080 blogproject.wsgi: application
