Questions tagged [python]

Questions about interfacing with, or features inspired or demonstrated by Python--a programming language featuring a dynamic type system, automatic memory management, and a comprehensive standard library.

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25 views

External evaluations — selecting one of several Python versions

I have several Python versions installed and registered to Mathematica: FindExternalEvaluators["Python"] When I run the following code which one of ...
0
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0answers
84 views

Reproduce, possibly using NMinimize, the low fit-errors of scipy.optimize.least_squares() for 2 data-points

I have a non-linear ordinary differential equation, the solution (depending on parameters c0 and c2) to which I am trying to fit to 2 data points. Equivalently, one could say that I am trying to solve ...
2
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1answer
69 views

How to run Python script with an argument?

I want to run Python script with argument 'arg' > python app.py arg Without 'arg' it works like ...
0
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1answer
30 views

save a mathematica expression with Root[] as Python expression?

I want to convert a Mathematica expression that uses Root[] to Python (open to using sympy if needed). The expression is: ...
0
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0answers
37 views

How to run Facebook Prophet in Mathematica?

I would like to use the Facebook Prophet API for timeseries forecasting in Mathematica. I'm trying to make a function prophetM which takes a list of date, and integer pairs (or a Timeseries object), ...
3
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1answer
84 views

Issue while evaluating Mathematica expressions from Python [closed]

This is a follow up to my question posted here I am trying to run the code posted here as an answer in the above-mentioned link here from Python I tried, ...
0
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1answer
58 views

Problem while running Mathematica code from Python using wolframclient library

This is a follow up to my previous post here I am trying to run a function from Python using wolframclient. The input arguments are passed from Python as Python ...
1
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0answers
43 views

Passing python data types as function arguments

I've a few python data types ...
2
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3answers
178 views

How to use Mathematica from Python

I've been using the following lines of code to generate 3D geometry (ref). The inputs edges, vd, ...
0
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1answer
56 views

Solution for system of linear equations for unknown variables in Mathematica and Python

I have a system of linear equations (here 9) as below: $ 2 a_{\{1,2,1,2,2,1,2,1,2,2\}}+2 a_{\{1,1\}}=1, \\ \left(a_{\{1,2,1,2,2,1,2,1,2,2,2\}}+a_{\{1,2,1,2,2,1,2,2,1,2,2\}}\right)+2 a_{\{1,1,2\}}=1, \\...
5
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2answers
283 views

How to assemble Python abstract syntax trees (AST) in Mathematica?

I would like to assemble Python 'ast.Module' objects inside of Mathematica and then submit them to Python via e.g. ExternalEvaluate["exec(astObject)"]. ...
11
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3answers
196 views

Is it possible to call back to Mathematica when using Python through ExternalEvaluate?

ExternalEvaluate makes it possible to call Python code from Mathematica. The Wolfram Client for Python makes it possible to call Mathematica from Python. When using ...
3
votes
1answer
76 views

How to use Python's input() with External Evaluation?

I want to use input() in Python code which runs in the Wolfram Notebook. So I create an external evaluation cell by typing ">" and choosing Python. Then I define this function: ...
5
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1answer
118 views

Binary file that can be read by both, Mathematica and Python

I would like to analyze data set in both Matematica and Python. What is a time and size efficient format to store the data?
2
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1answer
98 views

FindExternalEvaluators['Python"] returns a blank box instead of the locations or python versions

I'm using Mathematica 12.0 Student Edition and have python 3.7.6 instilled in anaconda and 3.7.8 installed via Microsoft Store. I have followed the reference instructions here but to no avail. The ...
14
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1answer
182 views

Problem passing a list from Mathematica to external python function

comp1a = Flatten[Join[{{0 + 0 i}}, {comp1}]]; Flatten[comp1a[[1 ;; 6]]] This creates a list of complex values -> comp1a The first 6 terms in the list are: {0, -...
3
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1answer
60 views

Formula translation from Wolfram Python Client Library to Python usable string

I try to use the Wolfram Python client library to evaluate a differential equation in Python. This does not work smoothly, but using ...
0
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0answers
59 views

Activating the WolframKernel for Python

I would like to activate the WolframKernel to use Mathematica in Python. Although it worked the first time, later the error ...
2
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0answers
79 views

Mathematica 12.1 trial version, very slow to evaluate a property in multiple pictures

I am a new mathematica user. I am using the following code to measure the internal rectangle width in some images. When I run mathematica for $1$ image, it takes a short time. Also, it works and it ...
0
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0answers
55 views

$1)$ Combining codes. $2)$ Editing them. $3)$ Evaluating the outputs

I asked a question here. kglr answer was GOOD because that measurement is what I meant exactly. Due to my knowledge in mathematica (I am a $2$-days user), I have some problems (I believe that users ...
1
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0answers
55 views

Having trouble moving program from python to Mathematica

I'm trying to move a Covid-19 model programmed in python to Mathematica and I can't figure out how to translate this segment of the code to Mathematica. ...
2
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1answer
80 views

Missing Dependencies for Python in Conda in MMA 12.1 in Windows 10

I tried to run python code in MMA 12.1 on my Windows 10 computer. However, it seems that the python in conda has MissingDependencies, as shown below. According to this FAQ thread, https://support....
5
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0answers
112 views

How to properly call Wolframscript from Python?

I am using Windows 10 x64. If I run the following code in Command Prompt: wolframscript -code ToString[TeXForm["Integrate[Tan[x],x]"]] I get the following ...
3
votes
1answer
150 views

Python module error using Externalsession

What I am trying to do is to generate an array using Python inside Mathematica but I getting TypeError required field:type_ignores missing Module. Here is the image:...
3
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0answers
29 views

How to use ExternalEvaluate in ResourceFunction?

Are there any working examples or best practices for writing ResourceFunction that package or depend on external language code (and package dependencies) through <...
3
votes
2answers
160 views

Using Manipulate to plot a function's time evolution

I am trying to plot a function in Mathematica using Manipulate to check how a function evolves with time. I am able to get sensible results with Python, though in Mathematica there is an overshoot in ...
5
votes
1answer
45 views

How to set default version for an external language code cell?

This example is for Python but I would like to set this option for any external language. I have a couple of versions of Python installed. ...
5
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0answers
40 views

How to monitor progress with external language code?

I'm trying to figure out how to get tqdm (a python progress monitoring tool) to work with ExternalEvaluate and "ExternalLanguage"...
2
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0answers
28 views

Get Box Shape Coordinate from image [closed]

I would like to taget each box (rectangle) in this image in order to have the coordinate of each one and finally crop on each one. For example, I have 3 rectangles in the image, I would like to ...
5
votes
1answer
202 views

How to run a Mathematica package (.m) from Python using the “Wolfram Client Library for Python”?

This question is about calling a Mathematica Package (.m file) from Python employing the "Wolfram Client Library for Python" (https://github.com/WolframResearch/WolframClientForPython). For ...
6
votes
1answer
100 views

RegisterExternalEvaluator claims MissingDependencies even though ZMQ is installed

I have an Anaconda Python installation in a non-standard location. So I ran RegisterExternalEvaluator["Python", "path-to-python.exe"] But I got the following ...
5
votes
1answer
525 views

Convert python Code To Mathematica?

Is there a way to convert simple python code to Mathematica code
3
votes
1answer
57 views

How to access WolframWebEngine running on a remote server?

Thanks to WolframWebEngine it's extremely easy to build and run a webapp backed by the Wolfram Engine on a local machine. Assuming one has all dependencies installed on a remote server, what is the ...
-2
votes
2answers
138 views

How to convert this Python code which uses genetic algorithm to calculate the best path into MMA

Question: From a logistics center, multiple distribution vehicles are used to deliver goods to multiple customers. Each customer's location and demand for goods are certain, each distribution ...
2
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0answers
58 views

How add channel for wolframclient using conda?

I want to use the wolframclient Python package in Mathematica. The docs suggest using pip install wolframclient. However, my main Python installation is within ...
4
votes
1answer
184 views

apply python's sympy function in mathematica

I recently try this $$\int\frac{\mathop{\rm Si}(x)}x\,dx$$ Mathematica failed to calculate it. Integrate[SinIntegral[x]/x, x] Mma 11.3 failed,but 12.0 can do it....
0
votes
1answer
90 views

Convert Mathematica expression to Python expression [closed]

I really need to convert this expression to python language, however I am having trouble converting Bessel function (Actually I have several similar expression and to know how to convert really would ...
8
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1answer
186 views

ExternalEvaluate[pySys, pyCmd] evaluates to Failure[…]

ExternalEvaluate[pySys, pyCmd] evaluates to Failure[...] every time pyCmd contains some ...
5
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0answers
173 views

Failed to start python external session

I use Wolfram Mathematica 12 on Windows 10. Whey I try to register external evaluator RegisterExternalEvaluator["Python", "C:\\Python27\\python.exe"] it fails ...
12
votes
1answer
437 views

How to display images inside Mathematica with matplotlib

How to display images inside Mathematica with matplotlib. A new window is generated by default, but is it possible to display the picture directly in the notebook? Like this: related: How to ...
0
votes
0answers
51 views

A MeijerG function does not accep arguments wrapped in “*Form” for numeric evaluation [duplicate]

I get the following Meijer function as a result of a symbolic integration: expr = MeijerG[{{1, 3/2}, {}}, {{1, 1}, {1/2}}, x]. I try to calculate numerical ...
7
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0answers
159 views

Pass Numpy array to Compiled Code (Wolfram Engine, Wolfram Client, Python)

What List-like structures in Python can Wolfram Client handle and how can support for new structures be added? In this answer I describe how to execute from Python, code in a Mathematica package that ...
1
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0answers
62 views

Wolfram Engine - how to list and terminate sessions?

Using WolframClient from Python (Jupyterlab notebook) I have at least one session - possibly more: there are three instances of WolframKernel running, possibly due to previously starting a new session ...
5
votes
1answer
240 views

How to execute an existing notebook with Wolfram Engine?

[My related question: mwe-for-compiling-functions-into-standalone-dll-and-calling-them-in-python - here I am exploring an alternative] I have downloaded, installed and activated the wolfram engine (...
5
votes
0answers
78 views

MWE for compiling functions into standalone DLL and calling them in Python?

I have read calling-a-compiledfunction-dll-from-outside-mathematica and the CodeGeneration tutorial and scanned other related questions too numerous to mention, but I am still unclear about how to ...
0
votes
0answers
168 views

Convert Mathematica Code To Python

Is there a way to convert Mathematica code to run in Python without running a Mathematica kernel in 2019? I have a long complicated code in Mathematica I would like to run in Python. However due to ...
0
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0answers
82 views

Convert Mathematica output to Python code

I have this Mathematica (output) vector that I'd like to convert to Python: ...
8
votes
1answer
251 views

How to open a Python interpreter input cell?

Something weird just happened to me: I mis-typed a keyboard shortcut, hitting the wrong keys, and a new notebook opened up with a Python prompt! Just for grins, I tried entering some simple Python ...
1
vote
0answers
258 views

ExternalEvaluate of Python do not work (Anaconda)

I cannot get the ExternalEvaluate work for my Python. It says "missing dependencies" for the registration status. I have attached screenshots from Mathematica and Terminal. From the terminal ...
2
votes
1answer
178 views

Is NumberForm double rounding numbers?

A number like 0.644696875 is represented internally as 0.6446968749999...: N[FromDigits[RealDigits[0.644696875, 2], 2], $MachinePrecision] (* 0.6446968749999999 *) ...