On Sun, Oct 18, 2020 at 01:55:49PM +0200, Zelphir Kaltstahl wrote: > Hello Guix Users, hello Zimoun and Tobias! > > Thanks for your information regarding the importer syntax thing. > > I continued trying to get a jupyterlab environment today. > > Here is what I did so far: > > (1) Create my manifest file: > > ~~~~START~~~~ > (specifications->manifest > '("python")) > ~~~~~END~~~~~ > > (2) Create my channels file: > > ~~~~START~~~~ > $ guix describe --format=channels > channels.scm > $ cat channels.scm > (list (channel > (name 'guix) > (url "https://git.savannah.gnu.org/git/guix.git") > (commit > "6ca673b30dac281ba27a8dac242c0ac83e5e354b") > (introduction > (make-channel-introduction > "9edb3f66fd807b096b48283debdcddccfea34bad" > (openpgp-fingerprint > "BBB0 2DDF 2CEA F6A8 0D1D E643 A2A0 6DF2 A33A 54FA"))))) > ~~~~~END~~~~~ > > (3) Create my jupyterlab PyPI import file, this time around using the > "/" instead of "@" for specifying the version: > > ~~~~START~~~~ > $ guix import pypi --recursive jupyterlab/2.1.5 > jupyterlab.scm > ~~~~~END~~~~~ > > (4) Add missing import expressions and add output expression at the end: > > ~~~~START~~~~ > ;; add module imports > (use-modules > (guix packages) > (guix download) > (guix build-system python) > ((guix licenses) #:prefix license:) > ;; use `guix environment --ad-hoc python-jinja2 -- guix package -A python-jinja2` to find the location of python-jinja2, which is gnu/packages/python-xyz.scm This can be just 'guix package -A python-jinja2', no need for the environment. > (gnu packages python-xyz) > ;; for python-tornado > (gnu packages python-web) > ;; for python-pytest > (gnu packages check)) > > ;; QUESTION: Why are those required packages not imported by guix automatically? > ;; QUESTION: Why are the manually imported packages not actually in files with their own name, but instead jinja2 -> python-xyz, tornado -> python-web, and pytest -> check? > ;; QUESTION: Is my process of finding the files in which the packages are correct or just working by chance? > > (define-public python-jupyterlab-server > (package > (name "python-jupyterlab-server") > (version "1.2.0") > (source > (origin > (method url-fetch) > (uri (pypi-uri "jupyterlab-server" version)) > (sha256 > (base32 > "132xby7531rbrjg9bqvsx86birr1blynjxy8gi5kcnb6x7fxjcal")))) > (build-system python-build-system) > (propagated-inputs > `(("python-jinja2" ,python-jinja2) > ("python-json5" ,python-json5) > ("python-jsonschema" ,python-jsonschema) > ("python-notebook" ,python-notebook) > ("python-requests" ,python-requests))) > (native-inputs > `(("python-pytest" ,python-pytest) > ("python-requests" ,python-requests))) > (home-page "https://jupyter.org") > (synopsis "JupyterLab Server") > (description "JupyterLab Server") > (license license:bsd-3))) > > (define-public python-jupyterlab > (package > (name "python-jupyterlab") > (version "2.1.5") > (source > (origin > (method url-fetch) > (uri (pypi-uri "jupyterlab" version)) > (sha256 > (base32 > "162jn51cg36fsn4l2zhnb5n4nbkhm9wlv974ggcnmdij3i4r4yya")))) > (build-system python-build-system) > (propagated-inputs > `(("python-jinja2" ,python-jinja2) > ("python-jupyterlab-server" > ,python-jupyterlab-server) > ("python-notebook" ,python-notebook) > ("python-tornado" ,python-tornado))) > (native-inputs > `(("python-pytest" ,python-pytest) > ("python-pytest-check-links" > ,python-pytest-check-links) > ("python-requests" ,python-requests) > ("python-virtualenv" ,python-virtualenv) > ("python-wheel" ,python-wheel))) > (home-page "http://jupyter.org") > (synopsis > "The JupyterLab notebook server extension.") > (description > "The JupyterLab notebook server extension.") > (license license:bsd-3))) > > python-jupyterlab > ~~~~~END~~~~~ > > And as noted in the comments, I have 3 questions at this point: > > (Q1) Why are those required packages not imported by guix automatically? > (My guess: This functionality simply has not yet been implemented.) > > (Q2) Why are the manually imported packages not actually in files with > their own name, but instead jinja2 -> python-xyt, tornado -> python-web, > and pytest -> check? Why not (gnu packages python pytest) for example? > > (Q3) Is my process of finding the files in which the packages are > correct or just working by chance? Basically I am creating temporary > environments, in which I then lookup "where would the package be > installed" and then exit the temporary environment to use that > information in my imported package file's import expressions / > use-modules expression. This seems to be a bit of a convoluted process, > though worth it, if it always works in the end. > > (4) Now I run my time-machine command: > > ~~~~START~~~~ > $ guix time-machine --channels=channels.scm -- environment --manifest=manifest.scm --load=jupyterlab.scm > ~~~~~END~~~~~ > > This take a moment and then I get an error (the full output is longer, > but when running it multiple times, already successful steps are not all > done repeatedly, so the output is then reduced to what fails): > > ~~~~START~~~~ > $ guix time-machine --channels=channels.scm -- environment --manifest=manifest.scm --load=jupyterlab.scm > Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'... > The following derivations will be built: > /gnu/store/wzmfn9m45bmsbrx094rv3lf3w0rpmw49-python-pytest-check-links-0.3.0.drv > /gnu/store/n9i421lrbwrr8d0947w5vma7rhy3iyba-python-jupyterlab-server-1.2.0.drv > /gnu/store/s7jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv > > 4,2 MB will be downloaded > downloading from https://ci.guix.gnu.org/nar/lzip/2nahbs5v8q073gjmy224gk0h5lsh1kkw-python-nbconvert-5.0.0b1 ... > python-nbconvert-5.0.0b1 301KiB 2.0MiB/s 00:00 [##################] 100.0% > > building /gnu/store/s7jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv... > |builder for `/gnu/store/s7jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv' failed to produce output path `/gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz' > build of /gnu/store/s7jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv failed > View build log at '/var/log/guix/drvs/s7/jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv.bz2'. > cannot build derivation `/gnu/store/n9i421lrbwrr8d0947w5vma7rhy3iyba-python-jupyterlab-server-1.2.0.drv': 1 dependencies couldn't be built > killing process 7384 > guix environment: error: build of `/gnu/store/n9i421lrbwrr8d0947w5vma7rhy3iyba-python-jupyterlab-server-1.2.0.drv' failed > ~~~~~END~~~~~ > > OK, an error, perhaps I can understand it. Lets look at that log file: > > ~~~~START~~~~ > $ cp /var/log/guix/drvs/s7/jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv.bz2 . > $ bzip2 --decompress jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv.bz2 > $ cat jc2dbb0bnrahxklmszmpfv8klgw3sd-jupyterlab-server-1.2.0.tar.gz.drv > > Starting download of /gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz > From https://files.pythonhosted.org/packages/source/j/jupyterlab-server/jupyterlab-server-1.2.0.tar.gz... > download failed "https://files.pythonhosted.org/packages/source/j/jupyterlab-server/jupyterlab-server-1.2.0.tar.gz" 404 "Not Found" > > Starting download of /gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz > From https://ci.guix.gnu.org/file/jupyterlab-server-1.2.0.tar.gz/sha256/132xby7531rbrjg9bqvsx86birr1blynjxy8gi5kcnb6x7fxjcal... > download failed "https://ci.guix.gnu.org/file/jupyterlab-server-1.2.0.tar.gz/sha256/132xby7531rbrjg9bqvsx86birr1blynjxy8gi5kcnb6x7fxjcal" 404 "Not Found" > > Starting download of /gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz > From https://tarballs.nixos.org/sha256/132xby7531rbrjg9bqvsx86birr1blynjxy8gi5kcnb6x7fxjcal... > download failed "https://tarballs.nixos.org/sha256/132xby7531rbrjg9bqvsx86birr1blynjxy8gi5kcnb6x7fxjcal" 404 "Not Found" > > Starting download of /gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz > From https://archive.softwareheritage.org/api/1/content/sha256:5431d9dde96659364b7cc877693d5d21e7b80cea7ae3959ecc2b87518e5f5d8c/raw/... > download failed "https://archive.softwareheritage.org/api/1/content/sha256:5431d9dde96659364b7cc877693d5d21e7b80cea7ae3959ecc2b87518e5f5d8c/raw/" 404 "Not Found" > failed to download "/gnu/store/92md7gh966n4fzj6al267lqq4xjx0ncf-jupyterlab-server-1.2.0.tar.gz" from "https://files.pythonhosted.org/packages/source/j/jupyterlab-server/jupyterlab-server-1.2.0.tar.gz" > ~~~~~END~~~~~ > > So it seems, that the jupyterlab-server file is simply not downloadable > any longer! > > Trying using wget: > > ~~~~START~~~~ > $ wget https://files.pythonhosted.org/packages/source/j/jupyterlab-server/jupyterlab-server-1.2.0.tar.gz > --2020-10-18 13:49:52-- https://files.pythonhosted.org/packages/source/j/jupyterlab-server/jupyterlab-server-1.2.0.tar.gz > Resolving files.pythonhosted.org (files.pythonhosted.org)... 2a04:4e42:9::319, 151.101.37.63 > Connecting to files.pythonhosted.org (files.pythonhosted.org)|2a04:4e42:9::319|:443... failed: Connection refused. > Connecting to files.pythonhosted.org (files.pythonhosted.org)|151.101.37.63|:443... connected. > HTTP request sent, awaiting response... 404 Not Found > 2020-10-18 13:49:53 ERROR 404: Not Found. > ~~~~~END~~~~~ > > So now I am out of ideas. It seems the file is not available any longer > and the definition of jupyterlab needs to be updated somewhere, so that > it does not try to download an old or non-existent version of > jupyter-labserver. But how is this usually done? Can I specify it > somewhere in one of the 3 files I have, or am I dependent on someone > fixing the jupyterlab-server dependency / input for juypterlab? > > Thanks for your help so far! Tell me, if I need to provide any more > information to solve the problem. Try chaning the URL line to (uri (pypi-uri "jupyterlab_server" version)), with an underscore (_). I don't have any special suggestions for knowing that it should be an underscore instead of a dash. The best I have is the output from 'guix import pypi jupyterlab-server: (ins)efraim@E5400 ~$ guix import pypi jupyterlab-server Starting download of /tmp/guix-file.ayJ41F From https://files.pythonhosted.org/packages/92/54/5f321ca4cebfb644ac59eb21601b46a2ff9831ffe1b4e5a588f2a7e98d48/jupyterlab_server-1.2.0.tar.gz... …er-1.2.0.tar.gz 22KiB 57KiB/s 00:00 [##################] 100.0% > Best regards, > Zelphir > > > On 10/16/20 2:25 PM, Tobias Geerinckx-Rice wrote: > > Zelphir, > > > > Zelphir Kaltstahl 写道： > >> $ guix import pypi 'jupyterlab@2.1.5' --recursive > > > > It will work if you substitute ‘/’ for ‘@’.  Yes, this is a happy > > accident specific to the PyPI importer, and I'm sure you can guess why > > it happens to work. > > > >>> guix import hackage mtl@2.1.3.1 > >> > >> But that is in the "hackage" import section. Is the same not available > >> for PyPI? > > > > [...] > > > >> Do the various importers work differently? > > > > Unfortunately so.  It would be great(TM) if PACKAGE[@VERSION] were > > standard.  Each importer could handle it properly (e.g., by turning it > > into "/") or return a friendlier ‘the foo importer does not yet > > support versions’ error. > > > > I don't have the time, but this sounds like a good intermediate-level > > hack for someone who does :-) > > > > Kind regards, > > > > T G-R > > -- > repositories: https://notabug.org/ZelphirKaltstahl > -- Efraim Flashner אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted