I am trying to complete the Django tutorial: Writing your first Django app. I am currently stuck on part 4. After updating my template polls/templates/polls/detail.html, rewriting my polls/views.py and creating a results.html located at polls/templates/polls/results.html, I ran the server and tried to go to h…
String handling in Python
I am trying to write a short python function to break a long one_line string into a multi_line string by inserting n. the code works fine when i simply insert n into the string but i get an index out of range error when i insert a conditional check to add hyphenation as well. Here is the code that i
Django oscar – customizing StockRecordForm form
I am trying to customize StockRecordForm in django-oscar administration. What I have: Forked dashboard app, also catalogue_dashboard Included new StockRecord attribute in models.py Updated forms.py like this: Part of my INSTALLED_APPS looks like this: But modification is not showing up. Is there anything else…
Use the parent’s attribute but do not inherit it on child using python
Are there some way to use the class attribute from parent inside child but do not inherit it? This is the example code. The point is that I’ll create many instances of Cycle class and it’s running out of memory because the all_cycles attribute has much more items than the example, but it’s f…
Using eval within a dict
I want to evaluate the value of a dict key, using the dict itself. For example: When I do this it includes a bunch of unnecessary stuff in the dict. In the above example it prints: Instead, in the above example I just want: How to resolve this issue? Thank you! Answer Pass a copy of dict to eval(): Prints:
How do I disable Cookies on Selenium Chrome?
I have been looking around stackoverflow and I cannot find a solution to this. The solutions I did find were apparently old. This is the error I get My code: Answer Everything looks okay, but the error says chromedriver’ executable needs to be in PATH , right ? Which means instead of : you need to do th…
Flask TypeError: ‘method’ object is not subscriptable
I am building a dictionary app with Flask where users can add new words, the code below is the app.py file, I am having issues with the POST request, the error I am receiving on my terminal is this: This code below is the app.py file here is my dashboard page or route: Answer get_json is the actual method, wh…
How to stop pygame buttons from overlapping in separate images?
I’m making a simple text based RPG game in pygame. I’m using a button class (not mine, but fairly simple to use and integrate) to add buttons with choices in them. However, it seems a button on the second slide, the ‘Sit and Wait’ choice, is overlapping with the ‘No’ button…
SQLAlchemy Model.query.get use generic function to get latest id
Consider this snippet. I am trying to get the user with the latest id like this: It throws an error saying Boolean value of this clause is not defined How do I get the user with the largest id by using the model.query API? Answer I would solve it like: An alternative would be:
Get the first and last value of a column of dataframe respect another column
I’m a beginner on python and I would like to get the first and last value of the column date always that the mac_address be the same, for example: I’ve ordered my dataframe by mac_address, date with the next line: And the data are: NOTE: the date column has the format “2021-01-01 05:50:54…