I use Fast API to create a web service. There are following sqlAlchemy models: Pydantic schemas are below: What I have now is: What I want to achieve is to get user from api in following structure: Is that possible? How should I change schemas to get this? Answer If you are okay with handling the how to ̶…
OpenCV(4.1.2) error: (-215:Assertion failed) !ssize.empty() in function ‘cv::resize’
I am recieving this error when running this line of code: OpenCV(4.1.2) C:projectsopencv-pythonopencvmodulesimgprocsrcresize.cpp:3720: error: (-215:Assertion failed) !ssize.empty() in function ‘cv::resize’ Answer Your img variable is empty, you probably didn’t load the image correctly. Try p…
How to load and plot csv file using altair package in python?
I have a csv file which has 200000 lines and I would like to plot the data files using altair packagae. Documentation states that for large files, data needs to be passed as URL. This is what I have till now. But this does not seem to work. Am I missing something obvious here? Answer When you pass a dataset
How to pass values to return redirect(url_for()) from one method to another in flask
I have a method in this I am extracting email id and mobile number from the database. I am using POSTGRES as database and using python language.I need to pass the value to the second method for the OTP purpose but I am running into an error. I have another method I need to access the email id and mobile
Can I perform a left join/merge between two dataframes using regular expressions with pandas?
I am trying to perform a left merge using regular expressions in Python that can handle many-to-many relationships. Example: Answer You can use create a custom function to find all the matching indexes of both the data frames then extract those indexes and use pd.concat. Timeit results
xdg-open: no method available for opening ./directory
I try to open a directory using xdg-open in Ubuntu. It works if I run xdg-open ./dir in terminal. I have a Flask web app that opens directories using xdg-open in some situations. When I start the app from terminal in development mode (By running $ flask run ) it works and opens all directories without any pro…
install python packages using init scripts in a databricks cluster
I have installed the databricks cli tool by running the following command pip install databricks-cli using the appropriate version of pip for your Python installation. If you are using Python 3, run pip3. Then by creating a PAT (personal-access token in Databricks) I run the following .sh bash script: python_…
Django+Celery Module not found error with app installed from git
I’m have a project split on 2 separate apps and both have another shared app as reusable one(i store my models there and install it from git link. So when i run celery worker locally all is working perfect, but if i use docker(with celery in separate image) i got this error In some reason celery gets im…
What does numpy.ix_() function do and what is the output used for?
Below shows the output from numpy.ix_() function. What is the use of the output? It’s structure is quite unique. Answer According to numpy doc: Construct an open mesh from multiple sequences. This function takes N 1-D sequences and returns N outputs with N dimensions each, such that the shape is 1 in al…
NoReverseMatch at /v2/search/SARS_CoV_2/GID1716
I am developing a django application in which I am trying to send a value of the variable to the backend on click of a button through javascript. javascript code: urls.py views.py when I execute this code i am getting following error: what am I doing wrong? how can I solve this issue. I am still at learning s…