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We handle huge data streams through our socket servers and in need of a non-block way to management callbacks to prevent race conditions.
Recently I came to know about functional reactive programming a method of programming and the solution is just what we are looking for.
There are examples in Haskell (reactive banana), ClojureScript and Javascript (bacon js), but none for python. Are there any libraries written for Python enabling Functional Reactive Programming? If there aren't any libraries, where is a good place to start? What are the possible challenges to write one?
There's an official Microsoft wip Rx (Reactive Extensions) implementation for Python called Rx.py.
This project targets Python 3.
I just checked the Wikipedia article on reactive programming, and in there, three modules are mentioned. You could check those out:
Trellis
Yoopf
Traits
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I have a bit wide question. Maybe someone knows where I can find good examples of functional test frameworks on python.
I'm working on functional tests on python 2.5. I use standart unittest framework, but maybe where is some better ways, with support of nice html reporting.
Also maybe where is examples of tests structure.
Thanks
Unfortuantly I dont have that much experience with testing in Python, but I found these links which seems to contain a lot of useful information:
The sites below lists a lot of different test frameworks. One of which is called TestOOB and has html/xml reporting.
https://pythonhosted.org/testing/
http://pycheesecake.org/wiki/PythonTestingToolsTaxonomy
O'reilly also has a free book on test driven python development which can be found here:
http://chimera.labs.oreilly.com/books/1234000000754/index.html
This site also has some information and examples of different testing frameworks.
http://docs.python-guide.org/en/latest/writing/tests/
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I'm a Python/Web dev who wants to build rich desktop applications. After realizing that both Qt and Kivy are trying to ram a shitty DSL down my throat (not saying that's a necessarily bad thing, I just kind of have an aversion to it), I thought I'd much rather work with the technologies I feel most comfortable with - namely, HTML5/CSS/JS on the front end and a back end driven by something like Tornado or Node.js.
What options would I then have for the container which would run the front end? Everything just looks so bloated and unwieldy.
I've had some success with running Chromium Embedded Framework via its Python bindings. I'd like to play around with a Gecko-based analogue, though.
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I am looking for a way to test python programmers as part of my hiring process.
I can understand python and follow the flow but have no idea how to technically challenge someone.
Can someone recommend an online test?
Thanks
There's been plenty of such discussions over at /r/Python. Here's one:
http://www.reddit.com/r/Python/comments/1knw7z/python_interview_questions/
What do specifically want to check?
Their algorithm skills?
Knowledge of specific python technologies (such as django)?
Python pit falls compered to other 3 generation language?
For the first one any interview question can be ok (like how to reverse a linked list, or sort an sorted binary tree and so on) you can find more here http://programmerinterview.com/index.php/data-structures/introduction
For the second ones it more depends on what are you looking for (web developer, server side and so on).
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I want to a visualize web file compare tool,that can embed into my app,I know there some software like beyond compare,it has done great job,but it on windows & need buy licence,if someone has develop a web version,then it can cross platform,
does some already achieve this?
if it is python - friendly is great appreciated
Take a look at rietveld
http://code.google.com/p/rietveld/
Here is an example http://codereview.appspot.com/2208048/diff/4001/Documentation/notation/fretted-strings.itely
There is Trac: Trac is an enhanced wiki and issue tracking system for software development projects. ... It provides an interface to Subversion (or other version control systems)...
It is written in python, and can compare source files. This looks like:
http://trac.edgewall.org/changeset?old_path=%2Ftrunk%2Ftrac%2Fdb%2Fschema.py&old=7890&new_path=%2Ftrunk%2Ftrac%2Fdb%2Fschema.py&new=9406
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I am trying to find tutorials on how to write buildout recipes. I haven't found any, except the one on buildout site. But it is very rudimentary. Is there a good tutorial for writing buildout recipes?
http://pypi.python.org/pypi/ZopeSkel/ has a template for a buildout recipe. That at least gets you started regarding having a skeleton for adding your own code.
http://pypi.python.org/pypi/zc.buildout#id1 has some information on which methods you need to implement.
Best way to learn it is by looking at an existing recipe to see how it gets done. I'd suggest my own recipe :-) :
https://svn.plone.org/svn/collective/buildout/collective.recipe.backup/trunk/
Here's a short tutorial with basic information http://grok.zope.org/documentation/tutorial/introduction-to-zc.buildout/writing-your-own-recipes
A quick google search came back with the following:
http://docs.plone.org/old-reference-manuals/buildout/creating.html
And the answers in the following Stack Overflow question look pretty helpful as well:
Better resources to learn buildout