Is it possible to define two methods in a Rails model that require different initialization?

Hi I'm attempting to create a model in Rails that can perform two calculations. This is my code: class Calculator def initialize(nair, cppy, interest_rate, payment, periods) @nair =...

installation error for matplotlib and Getfem to Python 3.9.0 using pip command

error for matplotlib: ERROR: Command errored out with exit status 1: command: 'c:\users\dell\appdata\local\programs\python\python39\python.exe' -c 'import sys, setuptools, tokenize;...

Sangria simple graphQL query, but syntax error

I'm trying to implement a toy server with graphql endpoint using Akka Http + Sangria. However, when I send POST request with payload (direct cppy and paste from Chrome inspection) >...

problm in installing python modules

ERROR: Command errored out with exit status 1: command: 'C:\Users\NARAYANAN\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import sys, setuptools, tokenize;...

How to add package to graalpython known packges list?

graalpython -m ginstall install --help will list packages known to graalpython: Known packages are pytest, pytest_parallel, py, attrs, pyparsing, packaging, more_itertools, atomicwrites, pluggy,...

Issues with installing matplotlib on Windows 10 with pipwin

I'm trying to install matplotlib on Windows 10 (64-bit), Python version 3.9 following the instructions in this answer with pipwin. I check at Christoph Gohlke's website and the suitable version...

Pandas build fail M1 Big Sur 11.1

I am using MacBook m1 which is running Big Sur 11.1 ,and I have installed Xcode-commandline-tools version 12.3 and it has installed python3.8.5 and pip3 .python3 and pip are native apps,that is...

Writing a script that copy files to sub folder

I need your help in writing a script(ubuntu-bash). suppose i have a folder in a certain name and i want to copy all the files in the folder to a sub-folder that starts with the first letter of the...

Problem with installation of matplotlib in Python

I am trying to install matplotlib in windows x64 with python 3.9. When I do: > pip install matplotlib I get this error: ERROR: Command errored out with exit status 1: command: 'c:\program...

"ERROR: Command errored out with exit status 1:". when installing matplotlib

For some reason I get an error when trying to install matplotlib with pip. What should I do to solve this problem? ERROR: Command errored out with exit status 1: command:...

PyCharm can't install kiwisolver

I am trying to install kiwisolver to later import into a python file. Whenever I try to install it it doesn't work. Here is an exerpt from the terminal that insludes the entire error message: pip...

issue during python/flask app dockerization

This is the current scenario, docker file, requirements and error. Any clue? This is a big python web application with flask that we would like to dockerize. The problem is happening during...

Issue while installing Jupyterthemes

Community I try to install the jupyterthemes package with pip and I get the following error: ``` Collecting kiwisolver>=1.0.1 Using cached kiwisolver-1.2.0.tar.gz (52 kB) ERROR: Command...

Erros installing matplotlib module in python

I have tried installing matplotlib but it shows error message. I am new to python and don't know what this error means! Here is my error message and full installing response. I don't know what...

Setting mailgun dns TXT record on gcloud

I have been trying to add mailgun dns TXT record on google cloud dns, with the data provided by mailgun, Type TXT Hostname mydomain.org Enter This Value v=spf1 include:mailgun.org ~all mailgun...

How to build a mailto HTML element in PHP with URL with GET vars in body

I'm building a 'mailto' HTML element in my PHP program and the constructed code is as follows: <a href="mailto:[email protected] ...

python on an AWS m6g instance

I am trying to install a reasonable python 3 on an AWS m6g instance - this is their latest and greatest, and therein lies the rub. It is an ARM64 box, so there is no anaconda install for that...

How to install matplotlib on Alpine

Trying to install matplotlib on an alpine docker image. I get a bunch of ugly messages. Am I missing some additional pre-req that needs to be manually installed? Here is docker file: FROM...