anyone here using <https github com Kotlin kotlin numpy|kotlin numpy> I m trying to port some python to kotlin specifically ```nr expected exponents = binom m + n n nr expected exponents np ndarray``` but if I try ```binomial m + n doubleArrayOf n toDouble ``` then I get gt Cannot run program python in directory tmp nativeKtNumPy2138897567746194273 error=2 No such file or directory gt <http java io|java io> IOException Cannot run program python in directory tmp nativeKtNumPy2138897567746194273 error=2 No such file or directory

gt I have `python3` Do you have an alias python gt python3

gt elect 5800x ~ Documents minterpy tests$ ln s usr bin python usr bin python3 gt ln failed to create symbolic link usr bin python3 File exists

anyone here using <https github com Kotlin kotlin numpy|kotl kotlinlang #datascience

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Title

elect

03/23/2021, 4:21 PM

anyone here using kotlin-numpy? I'm trying to port some python to kotlin, specifically

nr_expected_exponents = binom(m + n, n) // nr_expected_exponents: np.ndarray

but if I try

binomial(m + n, doubleArrayOf(n.toDouble())

then I get

Cannot run program "python" (in directory "/tmp/nativeKtNumPy2138897567746194273"): error=2, No such file or directory

java.io.IOException: Cannot run program "python" (in directory "/tmp/nativeKtNumPy2138897567746194273"): error=2, No such file or directory

👀 2

Iaroslav Postovalov

03/23/2021, 4:34 PM

Programs using kotlin-numpy can work only in environments where Python is available

elect

03/23/2021, 4:34 PM

I have

python3

Iaroslav Postovalov

03/23/2021, 4:34 PM

Install it globally or run your app in venv

I have
python3

Do you have an alias python -> python3?

elect

03/23/2021, 4:34 PM

no,

python

is unknown

Iaroslav Postovalov

03/23/2021, 4:35 PM

You can add link to python3:

ln -s /usr/bin/python3 /usr/bin/python

elect

03/23/2021, 4:36 PM

elect@5800x:~/Documents/minterpy/tests$ ln -s /usr/bin/python /usr/bin/python3

ln: failed to create symbolic link '/usr/bin/python3': File exists

Iaroslav Postovalov

03/23/2021, 4:36 PM

Mistyped, sorry

elect

03/23/2021, 4:37 PM

I just saw also this on ubuntu

sudo apt install python-is-python3

Iaroslav Postovalov

03/23/2021, 4:38 PM

I haven't used this package, but it seems it does the same thing.

elect

03/23/2021, 4:38 PM

now I get

Untitled

Iaroslav Postovalov

03/23/2021, 4:39 PM

It seems it can't install ktnumpy because of lack of admin rights

elect

03/23/2021, 4:40 PM

is there a TODO list to follow to get ktnumpy up and running?

or is it enough to have the requirements?

Iaroslav Postovalov

03/23/2021, 4:40 PM

Try

sudo python3 -m pip install -i <https://pypi.org/simple/> ktnumpy==0.1.5

elect

03/23/2021, 4:41 PM

Untitled

Iaroslav Postovalov

03/23/2021, 4:42 PM

It is bug in ktnumpy's

setup.py

I think

elect

03/23/2021, 4:42 PM

I'll open an issue then

thanks so far

Iaroslav Postovalov

03/23/2021, 4:46 PM

By the way, Apache Commons Math offers https://commons.apache.org/proper/commons-math/javadocs/api-3.6.1/org/apache/commons/math3/distribution/BinomialDistribution.html

elect

03/23/2021, 4:47 PM

I'll try, thanks

I just wonder if I shall get this way.. I'm trying to port a project from python to kotlin, and this is actually using numpy

can Apache math replaces more or less the whole numpy?

Ilya Muradyan

03/23/2021, 4:50 PM

@Pavel Gorgulov please help

elect

03/23/2021, 4:50 PM

thanks

altavir

03/23/2021, 4:51 PM

Commons math has quite different ideology (closer to the current KMath than to numpy). It has a wide variety of options, but it does not rely on NDStructures like numpy does

elect

03/23/2021, 4:53 PM

ok, then I should have math background as well, which is not what I'm interested in

anyway, issue opened

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