Programming Leftovers
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Dirk Eddelbuettel: prrd 0.0.5: Incremental Mode
The key idea of prrd is simple, and described in some more detail on its webpage and its GitHub repo. Reverse dependency checks are an important part of package development that is easily done in a (serial) loop. But these checks are also generally embarassingly parallel as there is no or little interdependency between them (besides maybe shared build depedencies). See the (dated) screenshot (running six parallel workers, arranged in a split byobu session).
This release brings some new features I used of late when testing and re-testing reverse dependencies for Rcpp. Enqueuing jobs can now consider the most recent prior job queue file. This allows us to find new packages that were not part of the previous runs. We added a second toggle to also add those packages who failed in the previous run. Finally, the dequeue interface allows to specify a date (rather than defaulting to the current date, useful for long-running jobs or restarts).
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Revisiting NaNs in Python
Back in January 2020, we looked at some oddities in Python's handling of Not a Number (NaN) values in its statistics module. The conversation went quiet after that, but it has been revived recently with an eye toward fixing the problems that were reported. As detailed in that earlier article, NaNs are rather strange beasts in the floating-point universe, so figuring out how best to deal with their presence is less straightforward than it might seem.
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This Week in Rust 409
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Roundup: managing issues for 20 years
The Roundup Issue Tracker is a flexible tool for managing issues via the web or email. However, Roundup is useful for more than web-based bug tracking or help-desk ticketing; it can be used as a simple wiki or to manage tasks with the Getting Things Done (GTD) methodology. The 20th-anniversary edition of Roundup, version 2.1.0, was released in July; it is a maintenance release, but there have been a number of larger improvements in the last year or so. Here we introduce Roundup's features along with the recent developments that have helped make Roundup even more useful for tracking issues to their resolution.
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Dilution and Misuse of the "Linux" Brand
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