Re: Type hinting of Python is just a toy ?

2019-01-04 Thread lorenzo . gatti
On Friday, January 4, 2019 at 9:05:11 AM UTC+1, iam...@icloud.com wrote: > I read that pep 484 type hinting of python has no effect of performance, then > what’s the purpose of it? Just a toy ? Having no effect on performance is a good thing; Python is already slowish, additional runtime type che

Re: Are the critiques in "All the things I hate about Python" valid?

2018-02-21 Thread lorenzo . gatti
On Saturday, February 17, 2018 at 12:28:29 PM UTC+1, Ben Bacarisse wrote: > Marko Rauhamaa writes: > > > Many people think static typing is key to high quality. I tend to think > > the reverse is true: the boilerplate of static typing hampers > > expressivity so much that, on the net, quality suf

Re: Getting back into PyQt and not loving it.

2016-06-27 Thread lorenzo . gatti
PyGTK is obsolete and stopped at Python 2.7, while PyGObject for Windows is several versions behind (currently 3.18 vs 3.21) and it doesn't support Python 3.5. Game over for GTK+. -- https://mail.python.org/mailman/listinfo/python-list

Re: Which one is the best XML-parser?

2016-06-24 Thread lorenzo . gatti
On Thursday, June 23, 2016 at 11:03:18 PM UTC+2, David Shi wrote: > Which one is the best XML-parser? > Can any one tell me? > Regards. > David Lxml offers lxml.etree.iterparse (http://lxml.de/tutorial.html#event-driven-parsing), an important combination of the memory savings of incremental pars

Re: anomaly

2015-05-11 Thread lorenzo . gatti
ys. Both choices are perfectly good, and routinely made without bothering other people with inane conversations. Lorenzo Gatti -- https://mail.python.org/mailman/listinfo/python-list

Re: New user's initial thoughts / criticisms of Python

2013-11-11 Thread lorenzo . gatti
Regarding the "select" statement, I think the most "Pythonic" approach is using dictionaries rather than nested ifs. Supposing we want to decode abbreviated day names ("mon") to full names ("Monday"): day_abbr='mon' day_names_mapping={ 'mon':'Monday', 'tue':'Tuesday', 'wed':'Wednesd

Re: Choosing GUI Module for Python

2009-11-12 Thread Lorenzo Gatti
On Nov 11, 9:48 am, Lorenzo Gatti wrote: > On a more constructive note, I started to follow the instructions > athttp://www.pyside.org/docs/pyside/howto-build/index.html(which are > vague and terse enough to be cross-platform) with Microsoft VC9 > Express. > Hurdle 0: recompile

Re: Choosing GUI Module for Python

2009-11-11 Thread Lorenzo Gatti
n't be resumed) after about 2 hours: trial and error at 1-2 builds per day could take weeks. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: Choosing GUI Module for Python

2009-11-10 Thread Lorenzo Gatti
oject underway to produce > PyQT compatible LGPL python bindings under the PySide project. I also would like to use PySide, but unlike PyQt and Qt itself it doesn't seem likely to support Windows in the foreseeable future. A pity, to put it mildly. Regards, Lorenzo Gatti -- http://mail.py

Re: Pyfora, a place for python

2009-11-04 Thread Lorenzo Gatti
On Nov 3, 11:37 am, Steven D'Aprano wrote: > On Tue, 03 Nov 2009 02:11:59 -0800, Lorenzo Gatti wrote: [...] > Are you saying that now that comp.lang.python and stackoverflow exists, > there no more room in the world for any more Python forums? > > I think that's terri

Re: Pyfora, a place for python

2009-11-03 Thread Lorenzo Gatti
g fish in a small pond over being part of a community. If you want to claim a small Python-related corner of the web, you should write a blog: if it is any good, and probably even if it isn't, it would be linked and read by someone and it would add to collective knowledge instead of fragmentin

Re: random number including 1 - i.e. [0,1]

2009-06-10 Thread Lorenzo Gatti
you multiply or divide these coefficients by (N-1)/N the minimum and maximum results for the two choices can be made identical up to floating point mangling. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: Thoughts on language-level configuration support?

2009-03-31 Thread Lorenzo Gatti
s central and actual use and design is a second class citizen. You say in your blog post: "Users shouldn’t have to pore through the code to find all the little bits they can tweak". They shouldn't because a well designed application has adequate documentation of what should be configured in the form of manuals, wizards, etc. and they shouldn't because they don't want to tweak little bits, not even if they have to. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: type-checking support in Python?

2008-10-07 Thread Lorenzo Gatti
types. In C++ one can check dimensions at compile time (http://www.boost.org/ doc/libs/1_36_0/doc/html/boost_units.html) with a modest increase of cumbersomeness, but Python would need very heavyweight classes containing a value and its dimension and a replacement of all needed functions and operat

Re: XML-schema 'best practice' question

2008-09-20 Thread Lorenzo Gatti
s are that the needed objects are already in place and you only need to make workflow more explicit and add appropriate new features. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: XML-schema 'best practice' question

2008-09-20 Thread Lorenzo Gatti
graphical output something simpler than an editor (e.g a Graphviz exporter) might be enough. 3) Maybe workflow processing can grow inside your existing accounting application without the sort of "big bang" redesign you seem to be planning; chances are that the needed objects are already

Re: XML-schema 'best practice' question

2008-09-18 Thread Lorenzo Gatti
e you performed validation) you can also store the filled-in document that you computed, either as XML or as serialized Python data structures. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: 2d graphics - what module to use?

2008-07-25 Thread Lorenzo Gatti
glVertex2f(x,y) glEnd() app.run() Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: str(bytes) in Python 3.0

2008-04-12 Thread Lorenzo Gatti
de with lenient APIs is the only way forward; being forced to learn that encodings are important is better than, say, discovering unrecoverable data corruption in a working system. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list

Re: Beginner's assignment question

2008-03-01 Thread Lorenzo Gatti
overlaps between the left-hand side and the right-hand side are `safe' (for example "a, b = b, a" swaps two variables), overlaps within the collection of assigned-to variables are not safe! For instance, the following program prints "[0, 2]": x = [0, 1] i = 0 i, x[i] = 1, 2 print x Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list