Hello Greg,

While I generally agree with you, there have been cases reported where the Python API was actually faster due to the usage of C libraries.

Regards,
Chesnay

On 22.08.2016 16:21, Greg Hogan wrote:
Hi Ivan,

My expectation would be that programs written for the Python API would be
much slower than when implementing with Java or Scala. A performance
comparison would be quite interesting. Gelly has both iterative and
non-iterative algorithms.

Greg

On Sat, Aug 20, 2016 at 7:11 PM, Ivan Mushketyk <ivan.mushke...@gmail.com>
wrote:

Hi Chesnay,

Thank you for you repply.
Out of curiosity, do you know why Python API reception was  *tumbleweed*?

Regarding the Python API, do you know what specifically should be done
there? I have some Python background so I was considering to contribute,
but I didn't find much tasks in the "Python" component:
https://issues.apache.org/jira/browse/FLINK-1926?jql=
project%20%3D%20FLINK%20AND%20component%20%3D%20%22Python%
20API%22%20AND%20resolution%20%3D%20Unresolved%20ORDER%
20BY%20due%20ASC%2C%20priority%20DESC%2C%20created%20ASC

Best regards,
Ivan.


On Fri, 19 Aug 2016 at 22:45 Chesnay Schepler <ches...@apache.org> wrote:

Hello,

I would say no, as the general reception of the Python API was
*tumbleweed* so far.

In my opinion this would just lead to a massive increase in code to
maintain; we would need at least 2-3 active long-term python
contributors.
Especially so since ML, CEP and Table are afaik still in heavy
development.
If anything, before thinking about porting the libraries to python it
would make more sense to implement a python streaming API.
Or maybe /finish/ porting the DataSet API...

Regards,
Chesnay

On 19.08.2016 22:07, Ivan Mushketyk wrote:
Hi Flink developers,

It seems to me that Flink has two important "selling points":

1. It has Java, Scala and Python APIs
2. I has a number of useful libraries (ML, Gelly, CEP, and Table)

But as far as I understand, currently users cannot use any of these
libraries using a Python API. It seems to be a gap worth filling.

What do you think about it? Does it make sense to add
CEP/Gelly/ML/Table
Python APIs?

Best regards,
Ivan.



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