:date: 2016-04-01
=====================
Friday, April 1, 2016
=====================
I read `How to Upgrade Your Ext JS 3.4 Apps to Ext JS 6
`_,
a blog post by Olga Petrova (Sales Engineer and software developer at
Sencha). Nice to read that Lino is not the only one who has been
waiting so long! Maybe these examples can help us for :ticket:`37`.
I listened to the first ten minutes of `The Waterfall Model and
“Managing the Development of Large Software Systems” (PT007)
`_. Yes, these are
important things to know... but I have the feeling that I "know"
them. Or at least that Lino is doing well at that level. I am not (and
I don't plan to become) owner of a big *company*. I see the Lino
community rather as a network than as a company. I see my role as the
one who gives a *chiquenaude initiale* to a system that will live on
its own, a "world" where software is being done by people who love
their work... oops, Luc, stop dreaming and start working!
For ticket :ticket:`147` I plan a phone meeting with Wilfried next
week. Before this, I want to verify whether everything we discussed
last time has been done. As a first step I updated the functional
specs in :ref:`cosi.tested.ledger` and :ref:`welfare.specs.ledger`.
Sidenote. While running `inv prep test` for Lino Welfare, I tried
to build some Sphinx docs under Python 3. Which failed. Lots of errors
which depend on complex environmental conditions. Here is one which
seemed surprising::
(py3)$ pip install appy
Downloading/unpacking appy
Downloading appy-0.9.3.tar.gz (1.8MB): 1.8MB downloaded
Running setup.py (path:/virtualenvs/py3/build/appy/setup.py) egg_info for package appy
package init file 'appy/pod/test/images/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/results/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/tr/__init__.py' not found (or not a regular file)
package init file 'appy/gen/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/aqua/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/tiger/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/lang/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/ckeditor/__init__.py' not found (or not a regular file)
Installing collected packages: appy
Running setup.py install for appy
package init file 'appy/pod/test/images/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/results/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/tr/__init__.py' not found (or not a regular file)
package init file 'appy/gen/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/aqua/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/tiger/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/lang/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/ckeditor/__init__.py' not found (or not a regular file)
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/__init__.py", line 126
print '%d method(s) patched from %s to %s (%s)' % \
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/__init__.py", line 770
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/date.py", line 236
except DateTime.DateError, ValueError:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/pod.py", line 578
exec cmd
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/ref.py", line 1609
exec 'self.%sObject(appyObj, tied, noSecurity=False)' % action
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/string.py", line 828
exec 'res = obj.%s(*args)' % methodName
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/boolean.py", line 130
exec 'res = %s' % value
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/calendar.py", line 550
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/file.py", line 111
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/job.py", line 85
exec 'targetObject.%s(*args)' % toolMethod
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/asksap.py", line 79
except SapError, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/backup.py", line 88
except IOError, ioe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/eggify.py", line 173
except EggifierError, ee:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/generate.py", line 74
except GeneratorError, ge:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/restore.py", line 60
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/odfwalk.py", line 33
print 'Walking %s...' % fileName
^
SyntaxError: Missing parentheses in call to 'print'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/new.py", line 109
os.chmod('bin/zopectl', 0744) # Make it executable by owner.
^
SyntaxError: invalid token
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/px/__init__.py", line 67
except xml.sax.SAXParseException, spe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/csv_parser.py", line 114
exec 'res = %s' % str(value)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/utils.py", line 48
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/diff.py", line 309
exec 'msg = self.%sMsg' % type
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/packaging.py", line 164
os.chmod(name, 0744) # Make it executable by owner.
^
SyntaxError: invalid token
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/dav.py", line 120
except xml.sax.SAXParseException, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/tables.py", line 141
except TypeError, te:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/xml_parser.py", line 472
except Exception, err:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/ldap_connector.py", line 162
exec 'login = login.%s()' % self.loginTransform
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/sap.py", line 77
except pysap.BaseSapRfcError, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/elements.py", line 202
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/test/Tester.py", line 110
exec 'import %s' % contextPkg
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/actions.py", line 114
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/doc_importers.py", line 340
except ResourceError, re:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/renderer.py", line 377
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/buffers.py", line 243
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/descriptors.py", line 219
exec "self.modelClass.%s = fieldType" % fieldName
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/model.py", line 123
exec 'appyType = klass.%s' % name
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/utils.py", line 14
exec 'from Products.%s.%s import %s as ZopeClass' % \
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/navigate.py", line 90
exec 'needIt = self.%sNeeded' % urlType
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/wrappers/__init__.py", line 1021
except AttributeError, ae:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/wrappers/ToolWrapper.py", line 516
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/generator.py", line 202
exec 'moduleElem = module.%s' % name
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mail.py", line 127
except smtplib.SMTPException, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/layout.py", line 186
exec 'self.%s = %s%s' % (param, source, param)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/__init__.py", line 600
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/ToolMixin.py", line 530
exec 'from Products.%s.%s import %s as C'% (self.getAppName(),name,name)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/TestMixin.py", line 16
exec 'import %s' % moduleName
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/installer.py", line 302
exec 'from %s import manage_add%s as ctor' % (module, name)
^
SyntaxError: invalid syntax
Successfully installed appy
Cleaning up...
The sum of a boolean field
==========================
I discovered the following question: Should boolean fields sum up like
numeric fields, with value 1 when True and 0 when False, and thus
displaying as their sum the number of rows having `True`? Until today
my answer was **Yes**.
But this choice leads to results like the following:
>>> rt.show(ledger.AccountTypes)
... #doctest: +ELLIPSIS +NORMALIZE_WHITESPACE +REPORT_UDIFF
==================== =============== =============== ======== ==========
value name text D/C Sheet
-------------------- --------------- --------------- -------- ----------
A assets Assets Debit Balance
L liabilities Liabilities Credit Balance
I incomes Incomes Credit Earnings
E expenses Expenses Debit Earnings
C capital Capital Credit Balance
B bank_accounts Bank accounts Debit Balance
**Total (6 rows)** **3**
==================== =============== =============== ======== ==========
In the above example the sums are obviously disturbing, both visually
and conceptually.
So I now removed the :meth:`value2num
` method of
:class:`lino.modlib.extjs.elems.BooleanMixin`. And the above snippet
now looks better:
>>> rt.show(ledger.AccountTypes)
... #doctest: +ELLIPSIS +NORMALIZE_WHITESPACE +REPORT_UDIFF
======= =============== =============== ======== ==========
value name text D/C Sheet
------- --------------- --------------- -------- ----------
A assets Assets Debit Balance
L liabilities Liabilities Credit Balance
I incomes Incomes Credit Earnings
E expenses Expenses Debit Earnings
C capital Capital Credit Balance
B bank_accounts Bank accounts Debit Balance
======= =============== =============== ======== ==========
This change (as expected) caused changes in several tested docs:
:ref:`cosi.specs.ledger`, :ref:`voga.specs.ledger`
:ref:`welfare.specs.uploads` :ref:`welfare.specs.polls`
:ref:`welfare.specs.pcsw` :ref:`welfare.specs.ledger`
:ref:`welfare.specs.isip` :ref:`welfare.specs.integ`
:ref:`welfare.specs.excerpts` :ref:`welfare.specs.cv2`
:ref:`welfare.specs.clients` :ref:`welfare.specs.addresses`
:ref:`welfare.tour.autoevents` :ref:`welfare.admin.printing`
But all these changes confirmed that it was a good idea to change my
answer to our question from **Yes** to **No**.