I have defined a custom Exception object and would like to get the line number of the exception. Now, if there is a exception in something() it throws the FlowException but it does not give me the exact line number, How can I get the line number from FlowException(ie; it failed when it executed 2/0)? Here is …
count the number of occurrences of a certain value in a dictionary in python?
If I have got something like this: If I want for example to count the number of occurrences for the “0” as a value without having to iterate the whole list, is that even possible and how? Answer As mentioned in THIS ANSWER using operator.countOf() is the way to go but you can also use a generator …
converting large int list to byte string python
I need to convert int list into a byte string but I don’t know how. I can’t use bytes() because the values are too large. I get this error: The expected value is: Answer You can use .to_bytes to return an array of bytes representing an integer. Note: This works only in python 3.1 and above. For ex…
ValueError: special directives must be the first entry
why this error appears and what does it mean exactly? It appears on this code (I put only the part of machine learning, because the code is so long): The error is the following: Thank you in advance! Answer Looking at what the code is doing I don’t think you should have np.c_ there at all. The model is …
AWS sync parameters not specified when AWS-CLI is run as a subprocess in Python
I have an AWS S3 bucket filled with data parameterized by date. I’d like to extract that data one date at a time using the AWS CLI (reference), specifically the aws s3 sync command. The following command does what I expect it to do: aws s3 sync s3://my-bucket-1 . –exclude “*” –in…
What’s the reason of the error ValueError: Expected more than 1 value per channel?
reference fast.ai github repository of fast.ai (as the code elevates the library which is built on top of PyTorch) Please scroll the discussion a bit I am running the following code, and get an error while trying to pass the data to the predict_array function The code is failing when i am trying to use it to …
After login the `rest-auth`, how to return more information?
I use django-rest-auth in my Django project. After login the rest-auth/login/, how to return more information? In the rest-auth/login/, when I login the user, it returns a key. I want to also return the user’s information, how can I get this? Answer At last, I get my solution: In the project settings.py…
Getting an Assertion error in my django application(1.8.4)
I am getting an exception value on running application : (“Creating a ModelSerializer without either the ‘fields’ attribute or the ‘exclude’ attribute has been deprecated since 3.3.0, and is now disallowed. Add an explicit fields = ‘__all__’ to the StockSerializer ser…
Python – Calculating Percent of Grand Total in Pivot Tables
I have a dataframe that I converted to a pivot table using pd.pivot_table method and a sum aggregate function: I have received an output like this: I would like to add another pivot table that displays percent of grand total calculated in the previous pivot table for each of the categories. All these should a…
convert jupyter notebook saved as .HTML file back into .IPYNB
Can I convert a Jupyter Notebook saved as .HTML file back into .IPYNB file? The executable original notebooks were lost. The nbconvert docs don’t have anything useful for this case. Currently I have to copy-paste bunch of cells into a new notebook, but this is very tedious and output cells will be lost …