On Wednesday, 17 February 2021 at 22:55:20 UTC-7 [email protected] wrote:
> Hi Andrey, thank you very much for your time! > > I tried Fipy and it works very well. I used an example script (slightly > modified) by Fipy authors (only to test the package) and I've seen that > it works only if I enable "Python" as interpreter. If I use "Sage" > interpreter I obtain error "No attribute 'shape'". > > The two permalink are the following: the first is ok with Python > interpreter, the second can't work due to the "Shape" error when executed > with Sage interpreter: > > > 1. with Python as interpreter > > <https://sagecell.sagemath.org/?z=eJyFU7Fu2zAQ3QXoHw4ZGsoQVNlbijBDI6CLp9YIkklgLComIJIKSbkS0I_vkaITOU5RDxb5ePfeu-OxNVpCK_oJhOy1cXDPu-6BGcGeO57DDyOaTZXDg-C_uclhZ5iygiu340bmUIm2HazQym_TpD2RFU7rzp4o1SC5EWOapIkagcK6LHE14Uoh2HioLNa48lCD0DZ8YRXOJbcH3M9OSDPSZsyhmWgz5XhOFe7URNWUpUl_EBi5rIAoJjliV1Z3g0OjcIwnV3mawOUvqvnP5wFH1g08OEbByldTpAl_xcVZb0gGlJ73h-w1b1taYV4g2el-y1vnuSLyXTun5U_xcvDo2jfsMYen6Kdo2Z7fIz83FnuNG_tOQchbiA3QFyBPcAdb-AqbLLss5Q8sMpDHJzzC7SkhiwrnlpYqMxZkbv8tcyE1E85qdwu1cHvFXivrDBOKLFuUw7La7NPQhdEYvkACvxOS_3K8rwbDwij4ScQhK4sb_G_G1WqDbsgGN1VIEC3UtR-guvaXeV3XEuXq-vrbXOcxPAqkmV8H-jCWojUcT-aYFIqWRVyzka6LbJlW9J12JOhYNGWR5ia-oOdBdE6ot_eDc_XC8Uwb8KEg1AyRkJhFN_y1wCE_cm8juPhwGY2jHzsQDf2vzgvTfwHt4DrX&lang=python&interacts=eJyLjgUAARUAuQ==> > 2. with Sage as interpreter > > <https://sagecell.sagemath.org/?z=eJyFU7Fu2zAQ3QXoHw4ZGsoQVNlbijBDI6CLp9YIkklgLComIJIKSbkS0I_vkaITOU5RDxb5ePfeu-OxNVpCK_oJhOy1cXDPu-6BGcGeO57DDyOaTZXDg-C_uclhZ5iygiu340bmUIm2HazQym_TpD2RFU7rzp4o1SC5EWOapIkagcK6LHE14Uoh2HioLNa48lCD0DZ8YRXOJbcH3M9OSDPSZsyhmWgz5XhOFe7URNWUpUl_EBi5rIAoJjliV1Z3g0OjcIwnV3mawOUvqvnP5wFH1g08OEbByldTpAl_xcVZb0gGlJ73h-w1b1taYV4g2el-y1vnuSLyXTun5U_xcvDo2jfsMYen6Kdo2Z7fIz83FnuNG_tOQchbiA3QFyBPcAdb-AqbLLss5Q8sMpDHJzzC7SkhiwrnlpYqMxZkbv8tcyE1E85qdwu1cHvFXivrDBOKLFuUw7La7NPQhdEYvkACvxOS_3K8rwbDwij4ScQhK4sb_G_G1WqDbsgGN1VIEC3UtR-guvaXeV3XEuXq-vrbXOcxPAqkmV8H-jCWojUcT-aYFIqWRVyzka6LbJlW9J12JOhYNGWR5ia-oOdBdE6ot_eDc_XC8Uwb8KEg1AyRkJhFN_y1wCE_cm8juPhwGY2jHzsQDf2vzgvTfwHt4DrX&lang=sage&interacts=eJyLjgUAARUAuQ==> > > > I'm just curious: why it happens? > Hi Matteo, I see what is happening, but don't understand what is the issue. It is, however, not specific to SageMathCell, perhaps ask on sage-support for more help? > Another question: can I choose the interpreter (maxima, python, octave, > sage, gap, html, ecc...) available on web page of SageMathCell also by > using the script sagecell-client.py > <https://github.com/sagemath/sagecell/blob/master/contrib/sagecell-client/sagecell-client.py>? > > Inside this script, where I should set the interpreter for execution of the > string in the filed "a.execute_request(...)"? > No, handling of the language setting is done in JavaScript https://github.com/sagemath/sagecell/blob/master/js/session.js#L322 which is bypassed by Python scripts. For your case, however, all is done is wrapping the code in exec. > > About Sfepy you are right, I know it is not available a pip version of it. > Do you think a possible solution could be to install permanently > Miniconda for Linux, so user could use both "!pip install ..." and "!conda > install ...." in the temporary opened cell before a calculation? Every > installation on local cell (via pip or conda) would be deleted after > execution. I propose this only to solve problems related to python > libraries that can't be installed with common "pip" but that can be > installed only with "conda" when user needs to try some of these libraries, > only for quick tests, because installable conda packages are usually > pre-compiled libraries for some platforms, like Sfepy as we can see at > https://anaconda.org/conda-forge/sfepy. > > Do you think the command "!conda install ..." could work like "!pip > install ..." in current cell by using the "--target" option, in order to > install temporary a python lib inside the working cell, only to test it, > not to install it permanently? > "pip installed" packages are actually installed by pip included in Sage, so to make it work in the same way conda has to be included into Sage. I think that the efforts now are on making Sage a pip-installable library instead of adding more package managers into Sage. > > And last question, with both "!conda install ..." and "!pip install ..." > executed inside the current working cell is it possible to ignore > dependencies installation by using the pip option "--no-dependencies"? > This because I prefer that, for example, a Scipy based python library (that > I'd like to test on SageMathCell only one time) uses the SageMathCell > built-in Scipy version instead of to install in current cell the entire > Scipy lib as dependency (that is time consuming). > > Can you give a full example you are working with so I can see what is happening? Seems to me that you can pass --no-dependencies option just fine. Thank you! Andrey > Thank you! > Regards > Matteo > > Il giorno domenica 14 febbraio 2021 alle 23:05:39 UTC+1 [email protected] > ha scritto: > >> Hi Matteo, >> >> I've install fipy (should be available in a few hours), but sfepy is not >> available via pip, so it is not obvious to me how to make it available to >> Sage. >> >> Best, >> Andrey >> >> On Tuesday, 9 February 2021 at 09:24:48 UTC-7 [email protected] >> wrote: >> >>> Hi all! First of all thank you Andrey for SageMathCell. Sorry if I use >>> this thread but I have seen that here there are many requests about >>> installation of specific python libraries. >>> >>> So, if it's useful for you too and Andrey agrees, I'd like to try the >>> following libraries in SageMathCell (that I use mainly with a modified >>> version of the script sagecell-client.py >>> <https://github.com/sagemath/sagecell/blob/master/contrib/sagecell-client/sagecell-client.py> >>> >>> that works easily on a smartphone with python installed as app) to find >>> numerical solutions of PDEs: >>> >>> - Fipy (https://www.ctcms.nist.gov/fipy/index.html): finite volume >>> methods >>> - Sfepy (http://sfepy.org/doc-devel/index.html): finite elements >>> methods >>> >>> Thank you >>> Regards >>> Matteo >>> >>> Il giorno domenica 7 febbraio 2021 alle 18:05:29 UTC+1 [email protected] >>> ha scritto: >>> >>>> Ingo: SageMathCell uses preforked kernels, so when you are trying to >>>> execute a cell it is already up and running, waiting for your code. If you >>>> can activate extra modules from a running session, e.g. by downloading and >>>> importing a module, you can already do it. If you want to install >>>> something >>>> on the system and then start a kernel - that's completely different >>>> approach (which is available to you in CoCalc). The rate of requests for >>>> new modules is not that big, so I am happy to add anything you want and it >>>> will be available by default. Of course, this assumes that this anything >>>> can be installed via standard means and be functional. >>>> >>>> Elimboto: this is not the case for Tk, Turtle, or Dash/Flask. I could >>>> not figure out a way to use Turtle on on a headless machine without >>>> displaying anything, although it seems there are ways to save plots after >>>> they have been shown. If you can dig up instructions on how to do it - I >>>> will be happy to incorporate them. For Dash I am still unclear what >>>> exactly >>>> you are are trying to accomplish and so what should work. If you are >>>> trying >>>> to create some interactive interface, you are unlikely to do anything >>>> apart >>>> from using ipywidgets or its @interact wrappers. All communication in >>>> SageMathCell is passing through IPython framework, nothing else is going >>>> to >>>> work without substantial efforts like implementing X11 protocol similar to >>>> William's work in CoCalc. >>>> >>>> pyswarms, pydot, graphviz, folium and openpyxl have been added to >>>> public servers! >>>> >>>> Best, >>>> Andrey >>>> >>> -- You received this message because you are subscribed to the Google Groups "sage-cell" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-cell/0d44872f-10bc-4489-bec4-52b1d3e261ecn%40googlegroups.com.
