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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15
votes
2answers
547 views

How to use Python's Scipy, Numpy functions in Mathematica to find minimum of a function?

I have written my code in Mathematica, final aim of this code is to find the minimum of a function. I found that FindMinimum and ...
18
votes
2answers
771 views

How to make Mathematica read in CSV as fast as Python's Pandas

I have many big CSV files for processing in Mathematica. And each time loading them into Mathematica takes a long time. Meanwhile, it takes much less time using Pandas under Python. For example, ...
0
votes
1answer
60 views

Why doesn't WolframClient output InputForm?

I'm trying to make a wrapper REPL for the free Wolfram Engine (on Cygwin, there are a bit of I/O issues) in Python, so I am using the wolframclient library. However, whenever I use ...
0
votes
1answer
40 views

Editing complex arrays for export to Python

Quick question, can anyone advise on an efficient way to convert complex arrays with complex part denoted '${I}$' in Mathematica to '$j$' (as used in Python) and curly brackets '{}' replaced with '[]' ...
11
votes
1answer
283 views

WriteString to TCP socket appears to be broken in Mathematica 12.3

I have a large codebase in which some functions make calls to Python TCP servers. The code used to work perfectly in Mathematica 12.2, but has not worked since I ...
2
votes
1answer
111 views

Python to Mathematica code bug

I have an assignment in Mathematica, which I've already solved using Python and it's a bit hard to convert the code. Here's what I have done so far: ...
2
votes
0answers
37 views

Exporting packages containing “Python Code” cells

I created a notebook with Python code cells (evaluated using External Evaluate) as can be created by typing > at the beginning of a cell. (And choosing Python ...
3
votes
0answers
57 views

Create “Python Code” cells using custom executable

In https://mathematica.stackexchange.com/a/155815/45020 it is explained how to run cells using a custom virtual environment. How can I quickly create a cell that is evaluated using this environment. ...
0
votes
2answers
40 views

Create list of functions, domains, and iterate over (compare to Python code)

In Mathematica, I want to do a mass export of many different animated plots of specific functions with different domains. Because I don't necessarily want the plots to always have exactly the same ...
2
votes
1answer
268 views

Python's ':' equivalent in mathematica

I need to translate these two lines to mathematica from python ...
0
votes
0answers
82 views

Missing Dependencies for Python

I have some python code that I'd like to try to use in my Mathematica notebook. I have tried following the setup guide but I have run into some trouble (Mac). The Mathematica setup documentation says ...
0
votes
1answer
86 views

How to call Python Methods from Mathematica employing ExternalEvaluate?

This question is about the compatibility of methods written in Python and ExternalEvaluate from Mathematica. ExternalEvaluate allows Python functions to be called from Mathematica. For example, the ...
0
votes
0answers
24 views

How to use conda environments in StartExternalSession?

I am trying to get a conda python environment to run in Mathematica under Windows. It includes the following packages (in case you want to reproduce): ...
1
vote
1answer
84 views

Run a code in Fortran, C++, or Python in Wolfram Mathematica 12 on Mac OS [closed]

I would like to run an external code, written in Fortran, C++, or Python, within Wolfram Mathematica 12 on my MAC OS. I looked up on Internet and I tried to read the WSTP documentation on Wolfram ...
5
votes
1answer
131 views

Importing Mathematica defined function in python to do further computations. [Mathematica-Python interfacing]

Say I have a function FUN defined in Mathemtica notebook: ...
6
votes
1answer
123 views

How to compress a string in Mathematica so that it can decompressed in python

I need to compress a string into some format so that I can pass it along on the command line and avoid writing it to file (which would require locking files to prevent simultaneous writes so I prefer ...
3
votes
1answer
155 views

Formatting Imported Complex Arrays from Python (csv. files)

Just a short question, I am trying to import a complex array (matrix) from Python to Mathematica by first writing to a csv. file. When I Import the csv. array to Mathematica it is in a form (matrix ...
6
votes
1answer
132 views

Performance of select from a 3d list - Mathematica slower than Python

I am creating a random 3d data set in Matematica 12.1. Then I am selecting all points that are in a certain range of one axis. The same I am doing in Python (same computer, Python 3.8.5, numpy 1.19.2) ...
0
votes
1answer
56 views

ExternalEvaluate Python: Cannot import local file

I am trying to use ExternalEvaluate for a Python session. For some reason I cannot import a file from there that I can import successfully when I call python some ...
6
votes
1answer
97 views

Exporting Associations (containing lists and strings as keys and values) to python dictionaries

Since Mathematica Associations are similar objects to python dictionaries I think there should be an easy way to export a Mathematica ...
0
votes
0answers
45 views

How to go from a Pareto Distribution in Scipy to a Pareto Distribution in Mathematica?

Assume that I have fitted a Pareto distribution via Scipy and have gotten the following parameters: ...
2
votes
0answers
67 views

Resources on python programming for Mathematica programmers

Are there any good guides to programming in python for people who are already very familiar to Mathematica. I understand that for some things the canonical python approach is different and it is good ...
0
votes
0answers
36 views

Kernel crashes on invoking Python prompt

Apologies if this is a naive question. A typing error keeps crashing the kernel. My typing error is to start a line with ">", unintentionally invoking Python. The problem is that this ...
1
vote
1answer
71 views

WolframClient Converting Output Of Solve To Sympy

I'm trying to convert the output of WolframClient to Python. Here's a toy example: ...
1
vote
1answer
68 views

Periodic Boundary Condition for a List

Please take attention to a list as: data={6,12,5,8}; It may be interesting in Python if i=0, then ...
0
votes
1answer
60 views

How to find a numerical solution for a differential equation with constraints?

I want first to apologize for my poor english level ^^ Let me present my issue. I want resolve numerically (I use Python) for x in [0;1] the following differential equation : $$dy/dx = a(y - y^2) $$ ...
4
votes
2answers
178 views

Wolfram Client Library: Cannot establish connection with Kernel in second Python function

I have recently started using the Wolfram Client Library (WCL) for Python in my Linux machine in order to automate running a Mathematica notebook many times. I have an Anaconda environment ...
0
votes
1answer
121 views

Adopt Mathematica codes for circumscribed and inscribed ellipsoids to related sets

Users Daniel Huber and Dominic have provided an interesting answer each to the question JohnEllipsoids of constructing circumscribing and inscribing ellipsoids for a certain three-dimensional convex ...
0
votes
0answers
78 views

What's going on in this Newton-Raphson algorithm?

I'm looking at this post, over on Mathematics SE. I'll summarize here: A signal with a known velocity, c is emitted by some source. We're given the coordinates of ...
1
vote
1answer
46 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 ...
2
votes
1answer
126 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
votes
1answer
43 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: ...
1
vote
0answers
47 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
votes
1answer
97 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
votes
1answer
75 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
vote
1answer
79 views

Passing python data types as function arguments

I've a few python data types ...
2
votes
3answers
248 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
votes
1answer
67 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
votes
2answers
482 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)"]. ...
14
votes
4answers
342 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 ...
2
votes
1answer
144 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
votes
1answer
205 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
votes
1answer
123 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
votes
1answer
209 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, -...
4
votes
1answer
133 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
votes
0answers
85 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 ...
1
vote
0answers
70 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
votes
1answer
143 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....
7
votes
0answers
229 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
193 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:...