Re: [xml-dev] Re: [xquery-talk] using FLWOR expressions (aka SQL..)directly in Python
It answers my question.
I would like to see how this goes down in the Python community so do you
have links to blogs and stuff where the announcement has been made.
My 2 cents would have been to release and not mention anything about
XQuery or JSONiq
On Fri, Oct 21, 2016 at 1:59 PM, daniela florescu <dflorescu@me.com
<mailto:dflorescu@me.com>> wrote:
Ihe,
Based on my experience, lots of data processing people use Python
those days, yet they are not helped
much by the available tools in their ecosystem.
PythonQL is to Python what LinQ was to C#, that’s all.
A simple and more natural way to run queries directly integrated in
your normal programming and
a replacement to the horrible scripts that most people need to write
today for data manipulation.
Now, is this “XQuery" !? Nope.
The FLWOR expressions of XQuery have nothing to do with XML, neither
syntactically, nor semantically.
They are just a generalized, cleaner and more powerful form of data
comprehension , out of which SQL’s SELECT-FROM-WHERE
is an example, but not the only one. (Python has it’s now form of
comprehension for example).
In fact in PhytonQL we tried to avoid what we perceived as serious
problems with the adoption of XQuery.
For example we made the following syntactic choices (good or bad,
we’ll see…):
1. FOR and FROM are synonyms. Choose whatever you like the best…..
2. IF and WHERE are synonyms. Again, choose whatever you like the
best…..
3. We avoided the (over)loaded RETURN keyword of XQuery and called
it SELECT like in SQL.
4. We put the SELECT clause first, like in SQL.
But other then this, it’s just 100% FLWOr expression, with
windowing, grouping, etc.
Does this make sense ?
Best regards
Dana
On Oct 21, 2016, at 10:46 AM, Ihe Onwuka <ihe.onwuka@gmail.com
<mailto:ihe.onwuka@gmail.com>> wrote:
Is the big thing here integration with the Python ecosystem?
Otherwise what is this offering to people who are not XQueryphobic.
On Fri, Oct 21, 2016 at 1:13 PM, daniela florescu
<dflorescu@me.com <mailto:dflorescu@me.com>> wrote:
For all exasperated data scientists writing mind bending,
complicated Python scrips to process their data: the power of
complex,
yet familiar, compact and optimizable SQL queries directly in
Python, running on structured as well as unstructured data
(XML, JSON).
http://www.pythonql.org <http://www.pythonql.org/>
Well, actually it’s not SQL per se. It’s the better, cleaner
and more powerful version of SELECT-FROM-WHERE,…. its the
power of XQuery’s FLWOR expressions, directly usable as an
expression in Python — together with any other expected goodies,
complex path expressions, etc.
Enjoy.
Best regards
Dana
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