i am trying to add a date to an application that I am writing. the apllication is actualy a list of activities. when i tried to add a datefield to the ui and save it into my database. i got this error this is my model this is my html page and this is my view i cant figure out
How to obtain a value from inside a loop
I will be implementing multiprocessing so that the loops are occurring at the same time, but how can I make it so at the end of each iteration, I can obtain the value of westernEurope.cases and easternEurope.cases so that I can add them together Answer IMHO there is no need for multiprocessing. With a generat…
Python import of ECC private key in PEM encoding fails
I’m running Python version 3.8.2 and using pycryptodome version 3.9.9 to import an ECC private key in PEM encoding for later signing some data. The following EC private key is a sample key, and I’m using it for several cross-platform projects [e.g. Java, PHP, NodeJs] and it works without any probl…
append string to list/string returns ‘None’ or ‘AttributeError: ‘str’ object has no attribute ‘append” in python
I’m trying to add 1 word/string to the back of the sentence ‘Afterall , what affects one family ‘. Using the append method, it either returns ‘None’ if I append directly to the list or it will return an error ‘AttributeError’ if I append to the string. May I know how …
Merge two json files implementing a row in a specific position
I’ve 3 json files. The first one have only one sentence (file1.json): The second one have only one sentence(file.json): And the third one is a list of dictionaries (example.json) And I want to insert the sentence of file1.json or file2.json just above “Person”: “Alex” in example.…
Why do I keep getting ‘undeclared identifier’ error message on pine script?
I’ve been getting undeclared identifier’ error message on pine script and now it’s getting frustrating. This is the full code, Thanks y’all. Answer Variables that are declared inside a function can only be used inside that function. It is also important to observe the correct number of…
How to have categorical regex groups with Python
I have a text which corresponds to a pattern can must be split into categories. I thought of using groups to capture parts of the text that correspond to a particular category patern, and then map that part to my category. Unfortunately, as far as I know group names in Python regex cannot have the same name, …
Django: Make a Queryset with annotate using an object’s property
I have a queryset in my Django views.py. I’m using annotate to add a promo property to each object based on each object’s id. However this is not working: I get the error: name ‘id’ is not defined Answer The way you try you are trying to access a variable id. Try using the Concat funct…
Django foreign key JWT auth
In my project I have the Post and Category Model and full working JWT Authentication. I want to create a view, that creates a new Post object, in which author will be assigned to Token owner that I pass in authorization (Bearer Token ) postman.image.example. I dont know how to do it please help. Sorry for my …
Showing the setup screen only on first launch in kivy
I am trying to make an app with kivy and kivymd but I can’t figure out how I can make the setup screen show up only the first time. This is how the application is going to work: User launches the application after installation and is being shown the sign up/log in screen, And once the user is done with