There are lots of constraints which I will use in optimization using scipy; so I need to generate the constraints by loop. Below there’s a sample of my constraints: There constraints are more than three… I use following loop to generate but I couldn’t get the same output. Answer You are upda…
Type hint for instance of subclass
I want to allow type hinting using Python 3 to accept instances which are children of a given class. I’m using the enforce module to check the function typing. E.g.: but it seems like python 3 doesn’t allow for this syntax, returning: Argument ‘x’ was not of type < class ‘A…
Split data frame into multiple data frames based on a group of parameters in a column
I’ve got a data frame like this: DF And I need to split it in multiple data frames by PARAMETER_4 in C column, to get: DF_1 DF_2 DF_3 I cannot find any easy-way function like df.split(axis=0, value=’PARAMETER_4′) Any idea about an approach? Thank you in advance! Answer We can use groupby twi…
Subset-AVG – Finding a subset of List Which Matches Known Rational Number
I’ve asked this on math overflow and used comments to clarify/overstate my question. I hope it has the intended effect and doesn’t come off as jarring. I’m attempting to find what subset of numbers reach a known average. I have a list of known values, negative and possible decimals. They loo…
How to use AWS Xray to connect traces across multiple lambda and SQS
We are attempting to use AWS Xray to trace an event through multiple services. We have enabled Xray within lambda via the checkbox and added the python (v2) SDK. This is giving us good information for each lambda, but they are not connected. Here is our model: event hits SNS Lambda is triggered for preprocess…
Python can’t describe two varibles
I am trying to make a simple program to calculate the area of a triangle. But at the end, python does not recognize the str function I am using. I have little to no experience on Python so if this is a stupid question, then that is why. I have tried renaming the variables and looking at other questions on
How to know whether a nifi process group has completed the data transfer using nipyapi?
I have to know the status of data transfer job(flow inside a Process Group) whether it is completed, failed or is it running. I want to do this using nipyapi for a web application. I have a process group in NiFi, inside which I have the NiFi flow. I am scheduling the process group using nipyapi: Now I want to
Can this beautifulsoup script be simplified with Regex?
I wrote some beautifulsoup scripts, and one part seems really redundant, I am thinking if it can be simplified with Regex. All posts from this forum are marked with different colors, what I did is to search each color with one line. For six colors I did six lines with only one words difference. I am not sure …
How to multiprocess multiple plots in a single PyQt GUI instance
I have a plot object called CrosshairPlotWidget. Each plot object spawns a thread which updates its data but these threads are still within the same main GUI process. Here’s what I currently have and an illustration: 1 main GUI process with 2 threads I want to run the two plots each in a separate proces…
Django WhiteNoise configuration is incompatible with WhiteNoise v4.0
I am trying to deploy my Django webapp on Heroku. I have been facing this same error everytime I try to deploy. ImportError: Your WhiteNoise configuration is incompatible with WhiteNoise v4.0 This can be fixed by following the upgrade instructions at: http://whitenoise.evans.io/en/stable/changelog.html#v4-0 !…