Antoine Prouvost

Change span to use std::size_t

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These changes are breaking `span` API Close #1563

std::span and views::span use different index type

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Hello, Thanks a lot for the work done on this project! I noticed that [`std::span`](https://en.cppreference.com/w/cpp/container/span) uses `std::size_t` as its extent/`size_type` while ranges uses `std::ptrdiff_t` https://github.com/ericniebler/range-v3/blob/167d94b2f3de8a7d279a47da55b0cad536665a15/include/range/v3/view/span.hpp#L42 https://github.com/ericniebler/range-v3/blob/167d94b2f3de8a7d279a47da55b0cad536665a15/include/range/v3/view/span.hpp#L151 Additionally, the dependent names...

Presentation sections

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Hello, I think it would be beneficial to have a _Presentation_ section similar to the publication. IMO in academia, researchers like to upload the slides to some their presentation and...

Allow to choose date format

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Hi The date format in various records is displayed as`MM/DD/YYYY` which can be very confusing for non-Americans. It would be nice to see something like ISO `YYYY-MM-DD`. Or perhaps it's...

Add keywords parameters for slack backend

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I added keywords parameters in the slack backend to enable other parameters from the config, such as the username and the image (Fancier than the `Slack Api Tester` default name)....

Release the GIL on CPU intensive methods

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The Python [Global Interpreter Lock](https://wiki.python.org/moin/GlobalInterpreterLock) (GIL) only lets one thread execute Python code at the time. So when using `threading` with pure Python, the code is actually concurrent, but not...

Cython can be automatically downloaded with `setup_requires` for source builds. Right now, I have some weird errors on `pip install .` but I think the changes are valid and the...

Standardize xtensor_type_caster_base signature

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Hello, I wonder if there is a reason why the `xtensor_type_caster_base` uses `xt::xtensor` for the signature https://github.com/xtensor-stack/xtensor-python/blob/719b9d13566122c7d63d04ff2394644af35a27ba/include/xtensor-python/xtensor_type_caster_base.hpp#L161 instead of using `numpy.ndarray[...]` https://github.com/xtensor-stack/xtensor-python/blob/719b9d13566122c7d63d04ff2394644af35a27ba/include/xtensor-python/pyarray.hpp#L72 In my opinion, using the Numpy name is...

For some functions in the online documentation, instead of seeing their documentation in the [reference](https://xtensor-blas.readthedocs.io/en/stable/reference.html) section, we see a Sphinx Warning. Possibly related to https://github.com/xtensor-stack/xtensor/issues/2242. **Error message**: ``` doxygenfunction: Unable...

Instance generator improvements

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## Describe the problem or improvement suggested Instance generators are valuables but hard to use for user unfamiliar with C++. ## Describe the solution you would like - [ ]...