[xquery-talk] [xml-dev] Re: using FLWOR expressions (aka SQL..) directly in Python

[daniela florescu]

> 
> My 2 cents would have been to release and not mention anything about XQuery or JSONiq

Yes, Ihe, I think I agree :-))

People love to hate XQuery, and  they have no idea why, and very often they don'tt even have an idea of what XQuery IS
before hating it….but such is life. 

I stopped trying to understand this fact… sometimes things are just like that, and that’s it. Move on.

So nope, we’ll not say anything about XQuery in public :-)

Any similarity to between PytonQL and XQuery are totally fictitious…. :-))

Dana


> 
> On Fri, Oct 21, 2016 at 1:59 PM, daniela florescu <dflorescu at me.com <mailto:dflorescu at 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 at gmail.com <mailto:ihe.onwuka at 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 at me.com <mailto:dflorescu at 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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>> 
> 
> 

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