| Age | Commit message (Expand) | Author |
|---|
| 2020-09-08 | Remove (guix json) and require Guile-JSON 4.3.0+....This is a followup to 4071879c86d059ee087c8986915ea72b8c742b72.
* guix/json.scm: Remove.
* Makefile.am (MODULES): Adjust accordingly.
* m4/guix.m4 (GUIX_CHECK_GUILE_JSON): Check for 'define-json-mapping'.
* doc/guix.texi (Requirements): Require Guile-JSON 4.3.0+.
* guix/ci.scm, guix/cve.scm, guix/import/cpan.scm,
guix/import/crate.scm, guix/swh.scm: Remove (guix json) import.
* guix/import/gem.scm, guix/import/pypi.scm: Likewise, and import (json).
* guix/self.scm (specification->package): Switch to GUILE-JSON-4.
* guix/git-download.scm (git-fetch): Likewise.
| Ludovic Courtès |
| 2020-07-25 | utils: Remove compatibility re-export of 'memoize'....The 'memoize' binding was re-exported in 2016, commit
19e1d5f7f90194f1ac7e783b28a688ce1441786d, as a backwards-compatibility
measure that makes little sense now.
* guix/utils.scm: Don't re-export 'memoize'.
* guix/import/pypi.scm: Adjust imports.
* tests/pypi.scm: Remove duplicate (guix memoization) import.
| Ludovic Courtès |
| 2020-07-05 | import: pypi: Handle 'null instead of #nil....* guix/import/pypi.scm (non-empty-string-or-false): guile-json now returns
'null instead of #nil for null JSON values. Handle it.
| Arun Isaac |
| 2020-07-03 | upstream: Define 'url-predicate' and use it....* guix/upstream.scm (url-predicate): New procedure.
(url-prefix-predicate): Define in terms of 'url-predicate'.
* guix/import/cpan.scm (cpan-package?): Use 'url-predicate'.
* guix/import/cran.scm (cran-package?)
(bioconductor-package?)
(bioconductor-data-package?)
(bioconductor-experiment-package?): Likewise.
* guix/import/crate.scm (crate-package?): Likewise.
* guix/import/elpa.scm (package-from-gnu.org?): Likewise.
* guix/import/hackage.scm (hackage-package?): Likewise.
* guix/import/pypi.scm (pypi-package?): Likewise.
* guix/import/gem.scm (gem-package?): Use 'url-prefix-predicate'.
| Ludovic Courtès |
| 2020-03-12 | import: pypi: Rewrite to use 'define-json-mapping'....* guix/import/pypi.scm (non-empty-string-or-false): New procedure.
(<pypi-project>, <project-info>, <distribution>): New record types.
(pypi-fetch): Call 'json->pypi-project'.
(latest-source-release, latest-wheel-release): Use the new record
accessors instead of 'assoc-ref*'.
(pypi->guix-package, latest-release): Likewise.
* tests/pypi.scm (test-json): Add mandatory fields.
| Ludovic Courtès |
| 2020-03-04 | import: pypi: Add more licenses...* guix/import/pypi.scm (string->license): Add the BSD 2-clause and MPL 2.0
licenses, and add more strings for BSD 3-clause and Expat license.
Signed-off-by: Leo Famulari <leo@famulari.name>
| Lars-Dominik Braun |
| 2020-02-05 | import: pypi: Support exporting packages with .zip source....* guix/import/pypi.scm (make-pypi-sexp): Rename test-inputs to
native-inputs. Restructure the way pypi-uri parameters are generated.
Use pypi-uri's extension parameter when required. Add "unzip" to
native inputs when the package source is a zip file.
Signed-off-by: Marius Bakke <mbakke@fastmail.com>
| Jakub Kądziołka |
| 2019-09-18 | import: pypi: Refresher recognizes pythonhosted.org source URLs....This is a followup to a5376200541abf8245973e601be246bf65b8b6c7.
Since that commit, 'pypi-package?' would return false for most Python
packages, and thus "guix refresh python-xxx" would report that no
updaters apply to the package.
* guix/import/pypi.scm (pypi-package?)[pypi-url?]: Recognize
"files.pythonhosted.org" URLs.
| Ludovic Courtès |
| 2019-07-25 | maint: Switch to Guile-JSON 3.x....Guile-JSON 3.x is incompatible with Guile-JSON 1.x, which we relied on
until now: it maps JSON dictionaries to alists (instead of hash tables),
and JSON arrays to vectors (instead of lists). This commit is about
adjusting all the existing code to this new mapping.
* m4/guix.m4 (GUIX_CHECK_GUILE_JSON): New macro.
* configure.ac: Use it.
* doc/guix.texi (Requirements): Mention the Guile-JSON version.
* guix/git-download.scm (git-fetch)[guile-json]: Use GUILE-JSON-3.
* guix/import/cpan.scm (string->license): Expect vectors instead of
lists.
(module->dist-name): Use 'json-fetch' instead of 'json-fetch-alist'.
(cpan-fetch): Likewise.
* guix/import/crate.scm (crate-fetch): Likewise, and call 'vector->list'
for DEPS.
* guix/import/gem.scm (rubygems-fetch): Likewise.
* guix/import/json.scm (json-fetch-alist): Remove.
* guix/import/pypi.scm (pypi-fetch): Use 'json-fetch' instead of
'json-fetch-alist'.
(latest-source-release, latest-wheel-release): Call 'vector->list' on
RELEASES.
* guix/import/stackage.scm (stackage-lts-info-fetch): Use 'json-fetch'
instead of 'json-fetch-alist'.
(lts-package-version): Use 'vector->list'.
* guix/import/utils.scm (hash-table->alist): Remove.
(alist->package): Pass 'vector->list' on the inputs fields, and default
to the empty vector.
* guix/scripts/import/json.scm (guix-import-json): Remove call to
'hash-table->alist'.
* guix/swh.scm (define-json-reader): Expect pair? or null? instead of
hash-table?.
[extract-field]: Use 'assoc-ref' instead of 'hash-ref'.
(json->branches): Use 'map' instead of 'hash-map->list'.
(json->checksums): Likewise.
(json->directory-entries, origin-visits): Call 'vector->list' on the
result of 'json->scm'.
* tests/import-utils.scm ("alist->package with dependencies"): New test.
* gnu/installer.scm (build-compiled-file)[builder]: Use GUILE-JSON-3.
* gnu/installer.scm (installer-program)[installer-builder]: Likewise.
* gnu/installer/locale.scm (iso639->iso639-languages): Use 'assoc-ref'
instead of 'hash-ref', and pass vectors through 'vector->list'.
(iso3166->iso3166-territories): Likewise.
* gnu/system/vm.scm (system-docker-image)[build]: Use GUILE-JSON-3.
* guix/docker.scm (manifest, config): Adjust for Guile-JSON 3.
* guix/scripts/pack.scm (docker-image)[build]: Use GUILE-JSON-3.
* guix/import/github.scm (fetch-releases-or-tags): Update docstring.
(latest-released-version): Use 'assoc-ref' instead of 'hash-ref'. Pass
the result of 'fetch-releases-or-tags' to 'vector->list'.
* guix/import/launchpad.scm (latest-released-version): Likewise.
| Ludovic Courtès |
| 2019-07-02 | import: pypi: Preserve package name case when forming pypi-uri....Fixes <https://bugs.gnu.org/33046>.
* guix/build-system/python.scm (pypi-uri): Update the host URI to
"files.pythonhosted.org".
* guix/import/pypi.scm (make-pypi-sexp): Preserve the package name case when
the source URL calls for it.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Include optional test inputs as native-inputs....* guix/import/pypi.scm (maybe-inputs): Add INPUT-TYPE argument, and use it.
(test-section?): New predicate.
(parse-requires.txt): Collect the optional test inputs, and return them as the
second element of the returned list.
(parse-wheel-metadata): Likewise.
(guess-requirements): Adapt.
(make-pypi-sexp): Likewise, and include the test inputs requirements as native
inputs in the returned package expression.
* tests/pypi.scm (test-requires.txt): Include a test section in the
test-requires.txt data.
(test-requires.txt-beaker): New variable.
("parse-requires.txt"): Adapt.
("parse-requires.txt - Beaker"): New test.
("parse-wheel-metadata, with extras"): Adapt.
("parse-wheel-metadata, with extras - Jedi"): Adapt.
("pypi->guix-package, no wheel"): Re-indent, and add the expected
native-inputs.
("pypi->guix-package, wheels"): Likewise.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Completely mute the output of the "unzip" command....* guix/import/pypi.scm (guess-requirements): Completely mute the output of the
"unzip" command.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Fix typo in docstring....* guix/import/pypi.scm (guess-requirements): Fix typo.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Parse wheel METADATA instead of metadata.json....With newer Wheel releases, there is no more metadata.json file; the METADATA
file should be used instead (see: https://github.com/pypa/wheel/issues/195).
This change updates our PyPI importer so that it uses the latter.
* guix/import/pypi.scm (define-module): Remove unnecessary modules and export
the PARSE-WHEEL-METADATA procedure.
(parse-wheel-metadata): Add procedure.
(guess-requirements): Use it.
* tests/pypi.scm (test-metadata): Test it.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Support more types of archives....This change enables the PyPI importer to look for requirements in a source
archive of a different type than "tar.gz" or "tar.bz2". Also, scan the source
archive to find a requires.txt file.
* guix/import/pypi.scm: (guess-requirements)[tarball-directory]: Remove procedure.
[guess-requirements-from-source]: Use COMRESSED-FILE? to determine if an
archive type is supported, and some file extension logic that chooses either
"tar" or "unzip" as the extractor. Search for the requires.txt file in the
archive instead of using a static, expected location.
(guess-requirements): Rename the TARBALL argument to ARCHIVE, to denote the
archive format is no longer bound specifically to the Tar format.
(compute-inputs): Likewise.
* tests/pypi.scm ("pypi->guix-package, no wheel"): Mock the requires.txt at a
non-standard location.
("pypi->guix-package, no usable requirement file."): New test.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Deduplicate requirements....* guix/import/pypi.scm (parse-requires.txt): Remove potential duplicates.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Improve parsing of requirement specifications....The previous solution was fragile and could leave unwanted characters in a
requirement name, such as '[' or ']'.
Partially fixes <https://bugs.gnu.org/33047>.
* guix/import/pypi.scm (use-modules): Export SPECIFICATION->REQUIREMENT-NAME
(%requirement-name-regexp): New variable.
(clean-requirement): Rename to...
(specification->requirement-name): this, which now uses
%requirement-name-regexp to select the requirement name from the requirement
specification.
(parse-requires.txt): Adapt.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Do not parse optional requirements from source....* guix/import/pypi.scm: Export PARSE-REQUIRES.TXT.
(clean-requirement): Move procedure to the top level.
(guess-requirements): Move the READ-REQUIREMENTS procedure to the top level,
and rename it to PARSE-REQUIRES.TXT. Move the CLEAN-REQUIREMENT procedure to
the top level. Move the COMMENT? functions inside the PARSE-REQUIRES.TXT
procedure.
(parse-requires.txt): Add a SECTION-HEADER? predicate, and use it to prevent
parsing optional requirements.
* tests/pypi.scm (test-requires-with-sections): New variable.
("parse-requires.txt, with sections"): New test.
| Maxim Cournoyer |
| 2019-07-02 | import: pypi: Do not consider requirements.txt files....PyPI packages are mandated to have a setup.py file, which contains a listing
of the required dependencies. The setuptools/distutils machinery embed
metadata in the archives they produce, which contains this information. There
is no need nor gain to collect the requirements from a "requirements.txt"
file, as it is not the true record of dependencies for PyPI packages and may
contain extraneous requirements or not exist at all.
* guix/import/pypi.scm (guess-requirements): Update comment.
[guess-requirements-from-source]: Do not attempt to parse the file
requirements.txt. Streamline logic.
* tests/pypi.scm (test-requires.txt): Rename from test-requirements, to hint
at the file being tested.
("pypi->guix-package"): Adapt so that the fake package contains a requires.txt
file rather than a requirements.txt file.
("pypi->guix-package, wheels"): Likewise.
| Maxim Cournoyer |
| 2018-10-18 | gnu: Use pypi.org....<pypi.io> redirects to <pypi.org>.
* guix/build-system/python.scm (pypi-uri): Replace pypi.io with pypi.org.
* guix/import/pypi.scm (pypi-url?): Likewise.
* tests/pypi.scm: Likewise.
| Leo Famulari |
| 2018-08-30 | import: pypi: Support recursive importing....* guix/import/pypi.scm (guess-requirements): Use upstream names.
(compute-inputs): Return the upstream dependency names as an additional value.
(make-pypi-sexp): Likewise.
(pypi->guix-package): Memoize it.
(pypi-recursive-import): New procedure.
* guix/scripts/import/pypi.scm (show-help, %options): Accept "recursive"
option.
(guix-import-pypi): Use pypi-recursive-import.
* doc/guix.texi (Invoking guix import): Document it.
| Ricardo Wurmus |
| 2018-08-30 | import: pypi: Also guess dependencies from *.egg-info/requires.txt....* guix/import/pypi.scm (guess-requirements): Extract "requires.txt" from the
egg-info directory in addition to "requirements.txt"; strip off version
constraints; use call-with-temporary-directory.
| Ricardo Wurmus |
| 2018-07-24 | import: PyPI: Update redirected URL....* guix/import/pypi.scm (guix-package->pypi-name, pypi->guix-package): Update
docstrings.
(pypi-package?): Test for pypi.org, too.
(pypi-fetch): s/pypi.python.org/pypi.org/
* tests/pypi.scm ("guix-package->pypi-name, new URL style",
"pypi->guix-package", "pypi->guix-package, wheels"): Likewise.
| Marius Bakke |
| 2018-06-10 | import: json: Consolidate duplicate json-fetch functionality....* guix/import/json.scm (json-fetch): Return a list or hash table.
(json-fetch-alist): New procedure.
* guix/import/github.scm (json-fetch*): Remove.
(latest-released-version): Use json-fetch.
* guix/import/cpan.scm (module->dist-name): Use json-fetch-alist.
(cpan-fetch): Likewise.
* guix/import/crate.scm (crate-fetch): Likewise.
* guix/import/gem.scm (rubygems-fetch): Likewise.
* guix/import/pypi.scm (pypi-fetch): Likewise.
* guix/import/stackage.scm (stackage-lts-info-fetch): Likewise.
| Jelle Licht |
| 2017-10-10 | import: pypi: Remove unneeded import....* guix/import/pypi.scm: Remove unneeded import.
| Ludovic Courtès |
| 2017-06-15 | import: pypi: Always use pypi.io URL with downcased package name....* guix/import/pypi.scm (make-pypi-sexp): Always use pypi.io URL with
downcased package name.
| Danny Milosavljevic |
| 2017-05-13 | import: pypi: Robustify latest-release....* guix/import/pypi.scm (latest-release): Check if pypi-fetch has
failed. If so return #f, else construct the <upstream-source>.
| Mathieu Othacehe |
| 2017-05-03 | ui: Rename '_' to 'G_'....This avoids collisions with '_' when the latter is used as a 'match'
pattern for instance. See
<https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>.
* guix/ui.scm: Rename '_' to 'G_'.
* po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly.
* build-aux/compile-all.scm (warnings): Remove 'format'.
* gnu/packages.scm,
gnu/services.scm,
gnu/services/shepherd.scm,
gnu/system.scm,
gnu/system/shadow.scm,
guix/gnupg.scm,
guix/http-client.scm,
guix/import/cpan.scm,
guix/import/elpa.scm,
guix/import/pypi.scm,
guix/nar.scm,
guix/scripts.scm,
guix/scripts/archive.scm,
guix/scripts/authenticate.scm,
guix/scripts/build.scm,
guix/scripts/challenge.scm,
guix/scripts/container.scm,
guix/scripts/container/exec.scm,
guix/scripts/copy.scm,
guix/scripts/download.scm,
guix/scripts/edit.scm,
guix/scripts/environment.scm,
guix/scripts/gc.scm,
guix/scripts/graph.scm,
guix/scripts/hash.scm,
guix/scripts/import.scm,
guix/scripts/import/cpan.scm,
guix/scripts/import/cran.scm,
guix/scripts/import/crate.scm,
guix/scripts/import/elpa.scm,
guix/scripts/import/gem.scm,
guix/scripts/import/gnu.scm,
guix/scripts/import/hackage.scm,
guix/scripts/import/nix.scm,
guix/scripts/import/pypi.scm,
guix/scripts/import/stackage.scm,
guix/scripts/lint.scm,
guix/scripts/offload.scm,
guix/scripts/pack.scm,
guix/scripts/package.scm,
guix/scripts/perform-download.scm,
guix/scripts/publish.scm,
guix/scripts/pull.scm,
guix/scripts/refresh.scm,
guix/scripts/size.scm,
guix/scripts/substitute.scm,
guix/scripts/system.scm,
guix/ssh.scm,
guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was
obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
| Ludovic Courtès |
| 2017-02-08 | import: pypi: Correctly handle multiple-URL origins....Fixes <https://bugs.gnu.org/25635>.
Reported by Sergei Trofimovich <slyfox@inbox.ru>.
* guix/import/pypi.scm (guix-package->pypi-name)[url->pypi-name]: New
procedure.
Rewrite body to match lists in addition to strings.
* tests/pypi.scm ("guix-package->pypi-name, several URLs"): New test.
| Ludovic Courtès |
| 2017-01-26 | import: pypi: Don't add setuptools to propagated-inputs....* guix/import/pypi.scm (compute-inputs): Don't add setuptools to the imported
package's propagated-inputs.
| Carlo Zancanaro |
| 2016-12-20 | import: pypi: Match new 'pypi-uri' domain in updater....* guix/import/pypi.scm (pypi-package?): Match pypi.io domain.
| Marius Bakke |
| 2016-12-12 | import: json: Silence json-fetch output....* guix/import/json.scm (json-fetch): Use http-fetch instead of url-fetch
to avoid writing to stdout and a temporary file for each invocation.
* guix/import/gem.scm (rubygems-fetch): Do not redirect json-fetch
output to /dev/null.
* guix/import/pypi.scm (pypi-fetch): Likewise.
| Eric Bavier |
| 2016-10-23 | import: pypi: All inputs are propagated-inputs by default....* guix/import/pypi.scm (maybe-inputs): Return inputs as
"propagated-inputs".
| Hartmut Goebel |
| 2016-09-28 | import: Move string->license to importers....* guix/import/gem.scm (string->license): Move from (guix import utils).
* guix/import/pypi.scm (string->license): Move from (guix import utils).
| David Craven |
| 2016-07-26 | import: pypi: Correctly handle new-style URLs....Fixes <http://bugs.gnu.org/23997>.
* guix/import/pypi.scm (guix-package->pypi-name): Rewrite using
'basename' and 'hyphen-package-name->name+version'.
* tests/pypi.scm ("guix-package->pypi-name, old URL style")
("guix-package->pypi-name, new URL style"): New tests.
| Ludovic Courtès |
| 2016-06-25 | import: pypi: do not fail when 'run_requires' is missing from the metadata....* guix/import/pypi.scm (read-wheel-metadata): do not crash when 'run_requires'
is missing from the metadata.
| Cyril Roelandt |
| 2016-06-14 | import: pypi: read requirements from wheels....* doc/guix.tex (Invoking guix import): Mention that the pypi importer
works better with "unzip".
* guix/import/pypi.scm (latest-wheel-release,
wheel-url->extracted-directory): New procedures.
* tests/pypi.scm (("pypi->guix-package, wheels"): New test.
| Cyril Roelandt |
| 2016-04-15 | upstream: Pass a package object to updaters....* guix/upstream.scm (package-update-path): Pass PACKAGE to
'latest-release'.
* guix/gnu-maintenance.scm (latest-release*)
(latest-gnome-release, latest-xorg-release): Adjust accordingly.
* guix/import/cran.scm (latest-cran-release):
(latest-bioconductor-release): Likewise.
* guix/import/elpa.scm (latest-release): Likewise.
* guix/import/gem.scm (latest-release): Likewise.
* guix/import/github.scm (latest-release): Likewise.
* guix/import/hackage.scm (latest-release): Likewise.
* guix/import/pypi.scm (latest-release): Likewise.
| Ludovic Courtès |
| 2016-03-19 | import: pypi: Emit 'pypi-uri' only when it yields the right URL....Fixes <http://bugs.gnu.org/23062>.
Reported by Danny Milosavljevic <dannym@scratchpost.org>.
* guix/import/pypi.scm (make-pypi-sexp): Check whether 'pypi-uri'
returns SOURCE-URL and fall back to the full URL otherwise.
* tests/pypi.scm ("pypi->guix-package"): Adjust expected URI
accordingly.
Co-authored-by: Danny Milosavljevic <dannym@scratchpost.org>
| Ludovic Courtès |
| 2015-12-01 | import: pypi: Updater silently ignores packages without source....Reported by Andreas Enge <andreas@enge.fr>
at <https://lists.gnu.org/archive/html/guix-devel/2015-11/msg00764.html>.
* guix/import/pypi.scm (&missing-source-error): New error type.
(latest-source-release): Raise it instead of using 'error'.
(pypi->guix-package): Guard against it and use 'leave' to report the
error.
(latest-release): Guard against it and return #f when caught.
| Ludovic Courtès |
| 2015-11-04 | import: pypi: Make downloads silent....* guix/import/pypi.scm (pypi-fetch): Wrap body in
'call-with-output-file' and 'with-error-to-port'.
| Ludovic Courtès |
| 2015-11-04 | import: pypi: Add missing copyright line....* guix/import/pypi.scm: Add missing copyright line for bab020d.
| Ludovic Courtès |
| 2015-11-03 | import: pypi: add updater...* guix/import/pypi.scm (guix-package->pypi-name,
latest-release): New procedures.
(%pypi-updater): New variable.
* guix/scripts/refresh.scm (%updaters): Add %PYPI-UPDATER.
* doc/guix.texi (Invoking guix refresh): Mention PyPI
| Cyril Roelandt |
| 2015-11-03 | import: pypi: Use "pypi-uri" instead of building the URL manually....* guix/import/pypi.scm (make-pypi-sexp): Use "pypi-uri".
* tests/pypi.scm: Update the tests accordingly.
| Cyril Roelandt |
| 2015-10-05 | import: pypi: Remove unused procedure....* guix/import/pypi.scm (join): Remove.
| Ludovic Courtès |
| 2015-08-27 | import: pypi: Move generally useful procedures to utils module....* guix/import/pypi.scm (make-pypi-sexp): Factorize license to symbol
conversion code.
(string->license, snake-case, guix-hash-url): Move from here...
* guix/import/utils.scm: ... to here.
(license->symbol): New procedure.
| David Thompson |
| 2015-07-21 | import: pypi: Improve warning message....* guix/import/pypi.scm (guess-requirements): Add missing newline and quotes in
warning.
| Ludovic Courtès |
| 2015-06-24 | import: pypi: Detect inputs....* guix/import/pypi.scm (python->package-name, maybe-inputs, compute-inputs,
guess-requirements): New procedures.
* guix/import/pypi.scm (guix-hash-url): Now takes a filename instead of an
URL as input.
* guix/import/pypi.scm (make-pypi-sexp): Now tries to generate the inputs
automagically.
* tests/pypi.scm: Update the test.
| Cyril Roelandt |
| 2015-01-09 | import: Factorize utility functions....* guix/import/pypi.scm (hash-table->alist, flatten, assoc-ref*,
url-fetch, json-fetch): Pull procedures from here into...
* guix/import/utils.scm: Here and...
* guix/import/json.scm: Here. New file.
* Makefile.am (MODULE)[HAVE_GUILE_JSON]: Add it.
* guix/import/gnu.scm (file-sha256): Move from here to...
* guix/hash.scm: Here.
* tests/pypi.scm (pypi->guix-package): Update mock module reference.
| Eric Bavier |
| 2014-11-05 | import: pypi: Gracefully handle non-existent packages....Fixes <http://bugs.gnu.org/18831>.
Reported by Ian Denhardt <ian@zenhack.net>.
* guix/import/pypi.scm (url-fetch, json-fetch, pypi-fetch): Augment
docstring to mention #f on failure.
(pypi->guix-package): Likewise, and actually return #f on failure.
* guix/scripts/import/pypi.scm (guix-import-pypi): Call 'leave' when
'pypi->guix-package' returns #f.
| Ludovic Courtès |
