A computer algebra system written in pure Python http://sympy.org/ . To get started to with contributing https://github.com/sympy/sympy/wiki/Introduction-to-contributing
>>> Sum(exp(x*sin(n/m)),(n,1,m))
Sum(exp(x*sin(n/m)), (n, 1, m))
>>> Sum(exp(x*sin(n/m)),(n,1,m)).doit()
Piecewise((m*exp(c3_), Eq(exp(c2_), 1)), ((exp(c2_) - exp(c2_*(m + 1)))*exp(c3_)/(1 - exp(c2_)), True))
I have a few questions: when we rebuild the repo after making changes, does the repo get re-install again or only the modified part get installed? How do we run test on a single test case? How do we log the info from the test case when testing (is there any params when build that has to be added?). Sorry for the long questions!
You don't have to build SymPy because it is pure Python. If you installed from git, you will have to install again unless you did a
pip install -e or setup.py develop. Although I personally just run Python directly from the sympy directory. That does not require reinstalling, as it will just import the development version of SymPy directly.
To run the tests on a single case, you can pass in the file name like
./bin/test test_solvers.py, and use -k to select a specific test like ./bin/test -k test_whatever
I'm not sure about the log question. The output is printed to the screen. You don't have to do anything special to run the tests.
Hello everyone, I'm Nisarg Chaudhari, a second year computer science undergrad, studying at BITS Pilani Hyderabad Campus, India. I am familiar with python and made some personal projects with it (mainly small games with pygame). I would like to contribute to SymPy. This is my first time contributing to open source, currently going through "Introduction to contributing" in sympy wiki. Is there anything else I need to know to get started?
I'm not familiar with the sympy ones, but over at hyperspy we often have test failures due to mismatches on matplotlib versions when testing generated images
That said, if you go to the github master, you can see that the red cross implies that the master branch is currently not passing tests
None of those are failing :)
Red = failures, yellow is just that it output a warning.
12 replies
I agree that it seems odd
(and what does S.false evaluate to?)
Hi @che2712 , you can start with https://github.com/sympy/sympy/wiki/Introduction-to-contributing for starters, and then you can refer to the docs https://docs.sympy.org/latest/index.html. For the later part, refer to https://github.com/sympy/sympy/wiki/Development-workflow.
@asmeurer This is just an idea I thought would be useful if implemented. Maclaurin's series is one of the most used series today but if we have to find it using existing methods, we have to manually find using derivative at every single point. But a separate module or inbuilt function would come really handy. The user will pass Maclaurins(function_name) and the function can return the coefficients as an array. This can save a lot of time if implemented . Any suggestion would be of great help. Hoping for a reply :)
However, if you search the issue tracker, there are several issues that can be worked on relating to it.
