Tuesday, November 19, 2019¶

Documentation about help texts¶

I answered to a question posted by Amber on the lino-developers mailing list.

He wrote:

‘Sign in’, is self explanatory. Now it is showing the message to the User (external, to the customer ), “Open a window which asks for username and password and which authenticates as this user when submitted”. I guess, this message is for internal use and for (Developer/Technical) and not for an external user. When the mouse pointer at the ‘Sign in’, it could be found, most of the sites/products do not have any message, at all.

This is indeed the help text of the SignIn action. I agree that this is not the optimal help text. It is currently rendered in the Lino Book, in the specs page for the users plugin: lino.modlib.users.SignIn.

The source code for this is in the book repository, in the file docs/specs/users.rst file which you should have on your computer.

I invite you to change that file on your computer and to submit a pull request!

But note that you won’t see your change immediately in a runserver because you need to build the book for that. I assume that you now want to learn more about help texts. So I started to review the Help texts page because as usual, documentation grows upon request. Thanks for requesting!

Lino Ciao¶

I published a new Lino application: ciao (no longer published since 20210412).

I changed #3343 for this from “Lino Canti” to “Lino Ciao”. I changed the project’s basic target from “groups of singers” (which would be a quite narrow audience) to simply “A free alternative to meetup.com” (which probably has a more widely used functionality).

My plan is to have Amber work on this. Because he seems good in exploring and evaluating a Lino application from the outside. The big job for amber is to help us with turning ciao into an application that works intuitively and out of the box even for low-motivated occasional users.

I had some fun with getting the test suite run. Because it is the first project after atelier that I am converting to have a tox.ini file.

Note that getlino : the Lino installer doesn’t yet know about it. Here is how to get the new repo:

$ cd path/to/repositories
$ get clone git@github.com:lino-framework/ciao.git
$ pip install -e ciao

And then add it to your ~/.atelier/config.py file (immediately after amici).

Cannot install PyPI version of React front end for Lino ¶

I had this problem when trying to test ciao using tox:

$ pip install lino-react
Collecting lino-react
  Using cached https://files.pythonhosted.org/packages/6f/bb/e5b2e69be391a060532a5e53481d234add5871a62de0d0e7e1ceac930ee5/lino_react-19.11.1.tar.gz
    ERROR: Command errored out with exit status 1:
     command: /home/luc/tmp/t/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-112e6_9b/lino-react/setup.py'"'"'; __file__='"'"'/tmp/pip-install-112e6_9b/lino-react/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-112e6_9b/lino-react/pip-egg-info
         cwd: /tmp/pip-install-112e6_9b/lino-react/
    Complete output (8 lines):
    running egg_info
    creating /tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info
    writing /tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info/PKG-INFO
    writing dependency_links to /tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info/dependency_links.txt
    writing requirements to /tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info/requires.txt
    writing top-level names to /tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info/top_level.txt
    writing manifest file '/tmp/pip-install-112e6_9b/lino-react/pip-egg-info/lino_react.egg-info/SOURCES.txt'
    error: package directory 'lino_react/projects' does not exist
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

Fixed it by reviewing the MANIFEST.in of React front end for Lino and doing a new PyPI release.

`tox` fails in ciao¶

Building wheels for collected packages: lino-ciao, persistent, regex
  Building wheel for lino-ciao (setup.py): started
  Building wheel for lino-ciao (setup.py): finished with status 'done'
  Created wheel for lino-ciao: filename=lino_ciao-19.11.0-cp37-none-any.whl size=1536129 sha256=c1a50f78c2d2aa94b3dea3c73de69c578d15bf5c5a81091db21bf4937a313039
  Stored in directory: /home/luc/.cache/pip/wheels/9d/67/9f/ed6a2fab75dc4e6e55454b3f9b6b125d7ea6a0ebf03ce9b848
  Building wheel for persistent (setup.py): started
  Building wheel for persistent (setup.py): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /home/luc/work/ciao/.tox/py37/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-nj_mxmxl --python-tag cp37
       cwd: /tmp/pip-install-xgyu9lk6/persistent/
  Complete output (67 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.7
  creating build/lib.linux-x86_64-3.7/persistent
  copying persistent/persistence.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/interfaces.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/_ring_build.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/mapping.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/_compat.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/list.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/__init__.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/ring.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/timestamp.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/picklecache.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/wref.py -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/dict.py -> build/lib.linux-x86_64-3.7/persistent
  running egg_info
  writing persistent.egg-info/PKG-INFO
  writing dependency_links to persistent.egg-info/dependency_links.txt
  writing requirements to persistent.egg-info/requires.txt
  writing top-level names to persistent.egg-info/top_level.txt
  reading manifest file 'persistent.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  no previously-included directories found matching 'terryfy'
  warning: no previously-included files matching '*.dll' found anywhere in distribution
  warning: no previously-included files matching '*.pyc' found anywhere in distribution
  warning: no previously-included files matching '*.pyo' found anywhere in distribution
  warning: no previously-included files matching '*.so' found anywhere in distribution
  warning: no previously-included files matching 'coverage.xml' found anywhere in distribution
  no previously-included directories found matching 'docs/_build'
  no previously-included directories found matching 'persistent/__pycache__'
  writing manifest file 'persistent.egg-info/SOURCES.txt'
  copying persistent/_compat.h -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/_timestamp.c -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/cPersistence.c -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/cPersistence.h -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/cPickleCache.c -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/ring.c -> build/lib.linux-x86_64-3.7/persistent
  copying persistent/ring.h -> build/lib.linux-x86_64-3.7/persistent
  creating build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/__init__.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/attrhooks.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/cucumbers.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_docs.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_list.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_mapping.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_persistence.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_picklecache.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_ring.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_timestamp.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/test_wref.py -> build/lib.linux-x86_64-3.7/persistent/tests
  copying persistent/tests/utils.py -> build/lib.linux-x86_64-3.7/persistent/tests
  running build_ext
  generating cffi module 'build/temp.linux-x86_64-3.7/persistent._ring.c'
  creating build/temp.linux-x86_64-3.7
  building 'persistent.cPersistence' extension
  creating build/temp.linux-x86_64-3.7/persistent
  x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -flto -fuse-linker-plugin -ffat-lto-objects -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.7m -I/home/luc/work/ciao/.tox/py37/include/python3.7m -c persistent/cPersistence.c -o build/temp.linux-x86_64-3.7/persistent/cPersistence.o
  In file included from persistent/cPersistence.h:18:0,
                   from persistent/cPersistence.c:20:
  persistent/_compat.h:18:10: fatal error: Python.h: No such file or directory
   #include "Python.h"
            ^~~~~~~~~~
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for persistent
  Running setup.py clean for persistent
  Building wheel for regex (setup.py): started
  Building wheel for regex (setup.py): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /home/luc/work/ciao/.tox/py37/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xgyu9lk6/regex/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xgyu9lk6/regex/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-10ho7cbn --python-tag cp37
       cwd: /tmp/pip-install-xgyu9lk6/regex/
  Complete output (20 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.7
  creating build/lib.linux-x86_64-3.7/regex
  copying regex_3/__init__.py -> build/lib.linux-x86_64-3.7/regex
  copying regex_3/regex.py -> build/lib.linux-x86_64-3.7/regex
  copying regex_3/_regex_core.py -> build/lib.linux-x86_64-3.7/regex
  copying regex_3/test_regex.py -> build/lib.linux-x86_64-3.7/regex
  running build_ext
  building 'regex._regex' extension
  creating build/temp.linux-x86_64-3.7
  creating build/temp.linux-x86_64-3.7/regex_3
  x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -flto -fuse-linker-plugin -ffat-lto-objects -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.7m -I/home/luc/work/ciao/.tox/py37/include/python3.7m -c regex_3/_regex.c -o build/temp.linux-x86_64-3.7/regex_3/_regex.o
  regex_3/_regex.c:48:10: fatal error: Python.h: No such file or directory
   #include "Python.h"
            ^~~~~~~~~~
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for regex
  Running setup.py clean for regex
Successfully built lino-ciao
Failed to build persistent regex
Installing collected packages: html2text, MarkupSafe, jinja2, webencodings, tinycss2, html5lib, defusedxml, pillow, cssselect2, pycparser, cffi, cairocffi, CairoSVG, Pyphen, weasyprint, python-dateutil, invoke, future, pytz, Babel, sphinxcontrib-devhelp, imagesize, sphinxcontrib-qthelp, alabaster, Pygments, sphinxcontrib-serializinghtml, snowballstemmer, docutils, sphinxcontrib-applehelp, sphinxcontrib-htmlhelp, sphinxcontrib-jsmath, chardet, urllib3, certifi, idna, requests, Sphinx, unipath, argh, atelier, args, clint, pytidylib, zope.interface, persistent, zodbpickle, zc.lockfile, transaction, ZConfig, BTrees, zodb, schedule, sqlparse, Django, python-stdnum, django-localflavor, DateTime, lxml, PyYAML, jdcal, et-xmlfile, openpyxl, tzlocal, regex, dateparser, odfpy, soupsieve, beautifulsoup4, reportlab, etgen, lino, lino-xl, lino-react, lino-ciao
  Running setup.py install for persistent: started
    Running setup.py install for persistent: finished with status 'error'
    ERROR: Command errored out with exit status 1:
     command: /home/luc/work/ciao/.tox/py37/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-u0t4uxvn/install-record.txt --single-version-externally-managed --compile --install-headers /home/luc/work/ciao/.tox/py37/include/site/python3.7/persistent
         cwd: /tmp/pip-install-xgyu9lk6/persistent/
    Complete output (67 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.7
    creating build/lib.linux-x86_64-3.7/persistent
    copying persistent/persistence.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/interfaces.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/_ring_build.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/mapping.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/_compat.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/list.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/__init__.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/ring.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/timestamp.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/picklecache.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/wref.py -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/dict.py -> build/lib.linux-x86_64-3.7/persistent
    running egg_info
    writing persistent.egg-info/PKG-INFO
    writing dependency_links to persistent.egg-info/dependency_links.txt
    writing requirements to persistent.egg-info/requires.txt
    writing top-level names to persistent.egg-info/top_level.txt
    reading manifest file 'persistent.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    no previously-included directories found matching 'terryfy'
    warning: no previously-included files matching '*.dll' found anywhere in distribution
    warning: no previously-included files matching '*.pyc' found anywhere in distribution
    warning: no previously-included files matching '*.pyo' found anywhere in distribution
    warning: no previously-included files matching '*.so' found anywhere in distribution
    warning: no previously-included files matching 'coverage.xml' found anywhere in distribution
    no previously-included directories found matching 'docs/_build'
    no previously-included directories found matching 'persistent/__pycache__'
    writing manifest file 'persistent.egg-info/SOURCES.txt'
    copying persistent/_compat.h -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/_timestamp.c -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/cPersistence.c -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/cPersistence.h -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/cPickleCache.c -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/ring.c -> build/lib.linux-x86_64-3.7/persistent
    copying persistent/ring.h -> build/lib.linux-x86_64-3.7/persistent
    creating build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/__init__.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/attrhooks.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/cucumbers.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_docs.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_list.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_mapping.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_persistence.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_picklecache.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_ring.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_timestamp.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/test_wref.py -> build/lib.linux-x86_64-3.7/persistent/tests
    copying persistent/tests/utils.py -> build/lib.linux-x86_64-3.7/persistent/tests
    running build_ext
    generating cffi module 'build/temp.linux-x86_64-3.7/persistent._ring.c'
    creating build/temp.linux-x86_64-3.7
    building 'persistent.cPersistence' extension
    creating build/temp.linux-x86_64-3.7/persistent
    x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -flto -fuse-linker-plugin -ffat-lto-objects -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.7m -I/home/luc/work/ciao/.tox/py37/include/python3.7m -c persistent/cPersistence.c -o build/temp.linux-x86_64-3.7/persistent/cPersistence.o
    In file included from persistent/cPersistence.h:18:0,
                     from persistent/cPersistence.c:20:
    persistent/_compat.h:18:10: fatal error: Python.h: No such file or directory
     #include "Python.h"
              ^~~~~~~~~~
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /home/luc/work/ciao/.tox/py37/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xgyu9lk6/persistent/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-u0t4uxvn/install-record.txt --single-version-externally-managed --compile --install-headers /home/luc/work/ciao/.tox/py37/include/site/python3.7/persistent Check the logs for full command output.
WARNING: You are using pip version 19.2.3, however version 19.3.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

================================================================================== log end ===================================================================================
__________________________________________________________________________________ summary ___________________________________________________________________________________
ERROR:   py37: InvocationError for command /home/luc/work/ciao/.tox/py37/bin/python -m pip install --exists-action w .tox/.tmp/package/1/lino-ciao-19.11.0.zip (exited with code 1)

I think I fixed this by saying:

$ sudo apt install python-dev

ModuleNotFoundError: No module named ‘vobject’¶

I added a get_requirements method to lino_xl.lib.contacts and added inv install to the tox.ini file.

But I don’t want to make a PyPI release of xl just for seeing whether the ciao tests now pass. How can I tell tox that it should use my local version of lino_xl when creating its test environment?

Answer: specify it with -e in the tox.ini file:

deps =
  -e {toxinidir}/../xl

Works on my machine, but unfortunately this will fail on Travis CI. So there we must the latest version on GitHub:

deps =
  -e git+https://github.com/lino-framework/xl.git#egg=lino_xl

Convert from unipath to pathlib¶

We should start converting all usages of unipath to using pathlib.

unipath Path objects have a method child(), but with pathlib you can simply use the divide operator:

>>> from unipath import Path
>>> p = Path("/").child("var").child("log")
>>> print(p)
/var/log

>>> from pathlib import Path
>>> p = Path("/") / "var" / "log"
>>> print(p)
/var/log

OperationalError: no such table: django_content_type¶

The amici test suite is currently failing on Travis, saying “OperationalError: no such table: django_content_type”. And I cannot reproduce this locally. Strange…

Reviewing the getlino test suite¶

It took some time to understand these:

when skipsdist is true, tox installs only the package being tested but not its install_requires. But usedevelop is like skipsdist but with python setup.py develop. (source)
The tests_require and test_suite arguments in SETUP_INFO is ignored by tox.

Note also:

getlino itself does not require atelier. atelier is required only for testing and for building the docs.
I removed ‘setuptools’ from the getlino install_requires because I don’t see why it is needed. (not sure about that one)
The tox doesn’t install the package being tested #176 discussion did not help. Also I tried adding an empty conftest.py file as described here, but that wasn’t the reason.

After committing I saw that –of course– we also need to adapt .travis.yml. It was now failing on travis because inv cov requires atelier. I committed some changes but didn’t wait the result. I leave that to for you, Hamza!

The test suite itself then has failures… I saw “Permission denied”. Didn’t yet dive into these.