.gitlab/issue_templates/release.md

+# Release %vX.Y.Z **UPDATE THIS**
+
+This is a checklist based on the [release document](RELEASE.rst); consult it for more details.
+
+## Preflight checks
+
+- [ ] All the issues from this milestone are resolved
+- [ ] Ensure that tests pass (either on [stable](https://gitlab.kwant-project.org/kwant/kwant/tree/stable) or on [master](https://gitlab.kwant-project.org/kwant/kwant/tree/master) branch)
+- [ ] Documentation looks correct https://test.kwant-project.org/doc/<branch name>
+- [ ] [Whatnew](doc/source/pre/whatsnew) is up to date
+- [ ] `AUTHORS.rst` and `.mailmap` are up to date (run `git shortlog -s | sed -e "s/^ *[0-9\t ]*//"| xargs -i sh -c 'grep -q "{}" AUTHORS.rst || echo "{}"'`)
+
+## Make a release, but do not publish it yet
+
+- [ ] Tag the release
+- [ ] Build the source tarball and inspect it
+- [ ] Build the documentation
+
+## Test packaging
+
+These steps may be done in parallel
+
+### Debian
+
+- [ ] Follow the steps for building the Debian packages from [RELEASE.rst](RELEASE.rst)
+
+### Conda
+
+- [ ] Publish the release candidate source tarball "somewhere on the internet" (SOTI)
+- [ ] open a PR to the [conda-forge/kwant-feedstock](https://github.com/conda-forge/kwant-feedstock/) repo on Github. Make sure to mark the PR as WIP so that it doesn't get merged in accidentally
+    - [ ] set the upstream tarball URL (in meta.yaml) to SOTI
+    - [ ] update the tarball hash in meta.yaml
+- [ ] See if the package builds
+
+## Publish the release
+- [ ] push the tag
+- [ ] upload the source tarball to PyPI
+- [ ] upload the source tarball to the Kwant website
+- [ ] publish the debian packages
+- [ ] publish the ubuntu packages
+- [ ] create a new version of the Kwant conda-forge feedstock, and open a pull request to upstream
+- [ ] upload the documentation to the Kwant website
+- [ ] update the Kwant website to say that Conda is the preferred way to install Kwant on Windows
+
+## Announce the release
+- [ ] Write a short post summarizing the highlights on the Kwant website
+- [ ] post to the Kwant mailing list
+
+## Working towards next release
+- [ ] add a whatsnew file for the next release
+- [ ] tag this release with an `a0` suffix
+- [ ] push this tag to the official Kwant repository
+- [ ] create a milestone for the next release

RELEASE.rst

@@ -3,6 +3,10 @@ Making a Kwant release
 
 This document guides a contributor through creating a release of Kwant.
 
+Create a release issue
+######################
+
+Use the correct `issue template <gitlab.kwant-project.org/kwant/kwant/issues/new?issuable_template=release>`_, adjust it if necessary.
 
 Preflight checks
 ################
@@ -114,21 +118,23 @@ Building the documentation requires 'sphinx' and a Latex installation.
 First build the HTML and PDF documentation::
 
     ./setup.py build
-    cd doc
-    make realclean
-    make html latex SPHINXOPTS='-A website_deploy=True -n -W'
-    cd doc/build/latex
-    make all-pdf
+    make -C doc realclean
+    make -C doc html latex
+    make -C doc/build/latex all-pdf
 
 Then create a zipped version of the HTML documentation and name the PDF
 consistently, storing them, for example, in the "dist" directory along with the
 source tarballs::
 
-    ln -s `pwd`/doc/build/html /tmp/kwant-doc-<version>
-    (cd /tmp/; zip -r kwant-doc-<version>.zip kwant-doc-<version>)
-    mv /tmp/kwant-doc-<version>.zip dist
+    version=$(git describe | sed 's/^v//') # Assumes that we are on a tag.
+    ln -s `pwd`/doc/build/html /tmp/kwant-doc-$version
+    (cd /tmp/; zip -r kwant-doc-$version.zip kwant-doc-$version)
+    mv /tmp/kwant-doc-$version.zip dist
+    mv doc/build/latex/kwant.pdf dist/kwant-doc-$version.pdf
+
+Finally, rebuild the documentation for the website (including the web analysis javascript code)::
 
-    mv doc/build/latex/kwant.pdf dist/kwant-doc-<version>.pdf
+    make -C doc html SPHINXOPTS='-A website_deploy=True -n -W'
 
 
 Clone the repository of the Kwant Debian package
@@ -514,23 +520,20 @@ Ask Christoph Groth if you need to be granted access.
 
 Upload the zipped HTML and PDF documentation::
 
-    scp dist/kwant-doc-<version>.zip kwant-project.org:webapps/downloads/doc
-    scp dist/kwant-doc-<version>.pdf kwant-project.org:webapps/downloads/doc
-
-Point the symbolic links ``latest.zip`` and ``latest.pdf`` to these new files::
-
-    ssh kwant-project.org "cd webapps/downloads/doc; ln -s kwant-doc-<version>.zip latest.zip"
-    ssh kwant-project.org "cd webapps/downloads/doc; ln -s kwant-doc-<version>.pdf latest.pdf"
+    scp dist/kwant-doc-<version>.{zip,pdf} kwant-project.org:webapps/downloads/doc
 
-Then upload the HTML documentation for the main website::
+Upload the HTML documentation for the website::
 
     rsync -rlv --delete doc/build/html/* kwant-project.org:webapps/kwant/doc/<short-version>
 
 where in the above ``<short-version>`` is just the major and minor version numbers.
 
-Finally point the symbolic link ``<major-version>`` to ``<short-version>``::
+Finally, create symbolic links for the website::
 
-    ssh kwant-project.org "cd webapps/kwant/doc; ln -s <major> <short-version>"
+    ssh kwant-project.org
+    for e in zip pdf; do ln -sf kwant-doc-<version>.$e webapps/downloads/doc/latest.$e; done
+    ln -nsf <short-version> webapps/kwant/doc/<major>
+    exit
 
 
 Announce the release

doc/source/pre/whatsnew/1.5.rst

+What's new in Kwant 1.5
+=======================
+
+This article explains the user-visible changes in Kwant 1.5.0.

doc/source/pre/whatsnew/index.rst

@@ -2,6 +2,7 @@ What's new in Kwant
 ===================
 
 .. toctree::
+    1.5
     1.4
     1.3
     1.2

kwant/__init__.py

@@ -29,22 +29,29 @@ except ImportError:
         raise
 
 from ._common import KwantDeprecationWarning, UserCodeError
-
 __all__.extend(['KwantDeprecationWarning', 'UserCodeError'])
 
-for module in ['system', 'builder', 'lattice', 'solvers', 'digest', 'rmt',
-               'operator', 'kpm', 'wraparound']:
-    exec('from . import {0}'.format(module))
-    __all__.append(module)
+# Pre-import most submodules.  (We make exceptions for submodules that have
+# special dependencies or where that would take too long.)
+from . import system
+from . import builder
+from . import lattice
+from . import solvers
+from . import digest
+from . import rmt
+from . import operator
+from . import kpm
+from . import wraparound
+__all__.extend(['system', 'builder', 'lattice', 'solvers', 'digest', 'rmt',
+                'operator', 'kpm', 'wraparound'])
 
 # Make selected functionality available directly in the root namespace.
-available = [('builder', ['Builder', 'HoppingKind']),
-             ('lattice', ['TranslationalSymmetry']),
-             ('solvers.default',
-              ['smatrix', 'greens_function', 'ldos', 'wave_function'])]
-for module, names in available:
-    exec('from .{0} import {1}'.format(module, ', '.join(names)))
-    __all__.extend(names)
+from .builder import Builder, HoppingKind
+__all__.extend(['Builder', 'HoppingKind'])
+from .lattice import TranslationalSymmetry
+__all__.extend(['TranslationalSymmetry'])
+from .solvers.default import smatrix, greens_function, ldos, wave_function
+__all__.extend(['smatrix', 'greens_function', 'ldos', 'wave_function'])
 
 # Importing plotter might not work, but this does not have to be a problem --
 # only no plotting will be available.

kwant/continuum/__init__.py

@@ -15,6 +15,5 @@ except ImportError as error:
            "dependencies is not installed.")
     raise ImportError(msg) from error
 
-
 __all__ = ['discretize', 'discretize_symbolic', 'build_discretized',
            'sympify', 'lambdify', 'momentum_operators', 'position_operators']

kwant/graph/__init__.py

@@ -9,8 +9,7 @@
 """Functionality for graphs"""
 
 # Merge the public interface of all submodules.
-__all__ = []
-for module in ['core', 'defs']:
-    exec('from . import {0}'.format(module))
-    exec('from .{0} import *'.format(module))
-    exec('__all__.extend({0}.__all__)'.format(module))
+from .core import *
+from .defs import *
+
+__all__ = [core.__all__ + defs.__all__]

kwant/linalg/__init__.py

@@ -10,7 +10,10 @@ __all__ = ['lapack']
 from . import lapack
 
 # Merge the public interface of the other submodules.
-for module in ['decomp_lu', 'decomp_ev', 'decomp_schur']:
-    exec('from . import {0}'.format(module))
-    exec('from .{0} import *'.format(module))
-    exec('__all__.extend({0}.__all__)'.format(module))
+from .decomp_lu import *
+from .decomp_schur import *
+from .decomp_ev import *
+
+__all__.extend([decomp_lu.__all__,
+                decomp_ev.__all__,
+                decomp_schur.__all__])

kwant/physics/__init__.py

@@ -8,8 +8,14 @@
 """Physics-related algorithms"""
 
 # Merge the public interface of all submodules.
-__all__ = []
-for module in ['leads', 'dispersion', 'noise', 'symmetry', 'gauge']:
-    exec('from . import {0}'.format(module))
-    exec('from .{0} import *'.format(module))
-    exec('__all__.extend({0}.__all__)'.format(module))
+from .leads import *
+from .dispersion import *
+from .noise import *
+from .symmetry import *
+from .gauge import *
+
+__all__ = [leads.__all__
+           + dispersion.__all__
+           + noise.__all__
+           + symmetry.__all__
+           + gauge.__all__]

pytest.ini

 [pytest]
 testpaths = kwant
 flakes-ignore =
-    __init__.py UnusedImport
+    __init__.py UnusedImport ImportStarUsed ImportStarUsage
     kwant/_plotter.py UnusedImport
     graph/tests/test_scotch.py UndefinedName
-    graph/tests/test_dissection.py UndefinedName