evert | Accelerated beam | GPU library

I have tried several option how to highlight excel cells using Openpyxl 3.0.6 in python 3.8.2 but no ones from the code below work for me its look like everting is ok is run, but did not highlight cells.

I'm new in RxSwift, I have this code snipped that print in my console:

next(second value)

completed

but I was expecting this result:

next(first value)

next(second value)

completed

why is not reacting twice the subscribe? I understand that in react, the observable emits and trigger the subscribe evert time that the variable that we are observing change but the code is not showing this. Do I misunderstand the concept?

I have an array of channels. I am using *ngFor for looping the array of channels.

I have a for loop to iterate a list. In every iteration i have a different value, and i want to add this value to my context. I'm trying using context.update, but every time this returns an empty context.

I'm creating a schedule app. Teachers, students and cars.

Spring + DB + React

The way it's designed right know:

Adding new ride looks like this:

• 1 Select student (autofill provided from database)
• 2 Select time range
• 3.1 Select teacher from list who doesn't have any ride in that time range (2)
• 3.2 Select car from list which doesn't have any ride in that time range (2)

Till this step everting works by Queries (e.g. provide teachers that are available in that time range) through Repository in Spring. Should I validate received Ride once again on backend before saving it to repository/database?

I'm trying to build an Android 10 rom on Mac OS High Sierra (10.13.6) but even after establishing the build enviroment as it is stated here https://source.android.com/setup/build/initializing I am getting the following output

Please help, regex blown my mind.

I am cleaning data in Pandas dataframe (python 3).

I tried so many combos of regex found on the web for digits but none work for my case. I can't seem to figure out how to write my own regex for pattern 2 digits space to space 2 digits (example 26 to 40).

My challenge is to extract from pandas column BLOOM (scraped data) number of petals. Frequently petals are specified as "dd to dd petals". I know that 2 digits in regex are \d\d or \d{2} but how do I incorporate split by "to"? It will also be good to have a condition that the pattern is followed by word "petals".

Surely I am not the first person that needs regex in python for pattern \d\d to \d\d.

Edit:

I realised that my question without a sample dataframe is a bit confusing. So here is a sample dataframe.

I envisage developing an API client library which may use many small utility classes. Do I have to have a separate file for each class if using PSR-4? Is my approach sound, and if so how can I achieve it?

Edit in response to answers: I didn't understand the range of autoloading strategies in Composer particularly classmap autoloading and how that can better manage my own codebase.

Useful knowledge from Evert and Jeto.

Sample project layout:

Using the factory pattern, i wrote snippets of code that use firebase cloud functions :