Hi guys, Sorry for the delay! I read all of Ricardo's comments and I made some changes to these patches. I will send a new round of patches after this message because after I tried to run python tests for the cooler package there was a need for a new dependency. Here are some short answers to Ricardo's comments/questions: ---------------------------------------------------------------------- Ran 0 tests in 0.000s OK phase `check' succeeded after 1.5 seconds --8<---------------cut here---------------end--------------->8--- Could you please take a look at this? I fixed that! Please check the new patch! Thanks! “guix lint” tells me: python-sparse 0.11.2: can be upgraded to 0.12.0 Is there a reason why you picked 0.11.2? (Or did I just wait too long to review your patch…?) At that time only version 0.11.2 was available. All the best      Mădălin! On 06.03.2021 01:55, GNU bug Tracking System wrote: > Thank you for filing a new bug report with debbugs.gnu.org. > > This is an automatically generated reply to let you know your message > has been received. > > Your message is being forwarded to the package maintainers and other > interested parties for their attention; they will reply in due course. > > Your message has been sent to the package maintainer(s): > guix-patches@gnu.org > > If you wish to submit further information on this problem, please > send it to 46955@debbugs.gnu.org. > > Please do not send mail to help-debbugs@gnu.org unless you wish > to report a problem with the Bug-tracking system. > -- System Administrator Bioinformatics and Omics Data Science BIMSB - MDC