FiPy should be installed with Python 2.7. We are aware that the documentation
doesn't say this right now; getting the installation working smoothly and
ensuring that all of the documentation describes the process completely and
accurately is a non-trivial task.
> On Jul 19, 2018, at 8:02 PM, Carsten Langrock <langr...@stanford.edu> wrote:
>
> Hi,
>
> It’s been a while since I tried using the FiPy package. I followed the
> installation directions and used miniconda to generate a Python environment
> for FiPy. Running the fipy.test() function lists a large number of not
> installed packages, some of which I was able to install manually; not sure
> why packages tested by FiPy in this function aren’t part of the vanilla
> install … Other packages like pysparse don’t seem to want to installed
> possibly due to a conflict between Python 2 and 3; I am using the Python 3.6
> version of minconda. There are two references to mpi4py in the test script. I
> installed mpi4py, but …
>
> gist version not available
> mpi4py version 3.0.0
> mpi4py is not installed
>
> Not sure what’s going on here and what the difference may be.
>
> The test() function also crashes the Python interpreter.
>
> ======================================================================
> ERROR: testFiPy (unittest.loader._FailedTest)
> ----------------------------------------------------------------------
> ImportError: Failed to import test module: testFiPy
> Traceback (most recent call last):
> File
> "/Users/langrock/miniconda3/envs/FiPyEnv/lib/python3.6/unittest/loader.py",
> line 153, in loadTestsFromName
> module = __import__(module_name)
> ModuleNotFoundError: No module named ‘fipy.testFiPy'
>
> Trying to run the first diffusion example
>
> python examples/diffusion/mesh1D.py
>
> gives the following error
>
> Traceback (most recent call last):
> File "examples/diffusion/mesh1D.py", line 794, in <module>
> exec(fipy.tests.doctestPlus._getScript())
> File "<string>", line 139
> the transient diffusion equation"
> ^
> SyntaxError: Missing parentheses in call to 'print'. Did you mean print("The
> SciPy library is not available to test the solution to \
> the transient diffusion equation”)?
>
> I am not familiar with restructured text and how such commented code is
> supposed to be run using the ipy.tests.doctestPlus._getScript() function, but
> there’s apparently some issue.
>
> The second example fails differently, which seems to indicate a problem in
> the call to splu()
>
> python examples/diffusion/coupled.py
>
> /Users/langrock/miniconda3/envs/FiPyEnv/lib/python3.6/site-packages/fipy/viewers/matplotlibViewer/__init__.py:113:
> UserWarning: Matplotlib1DViewer efficiency is improved by setting the
> 'datamax' and 'datamin' keys
> return Matplotlib1DViewer(vars=vars, title=title, axes=axes, **kwlimits)
> Traceback (most recent call last):
> File "examples/diffusion/coupled.py", line 153, in <module>
> exec(fipy.tests.doctestPlus._getScript())
> File "<string>", line 66, in <module>
> File
> "/Users/langrock/miniconda3/envs/FiPyEnv/lib/python3.6/site-packages/fipy/terms/term.py",
> line 254, in sweep
> solver._solve()
> File
> "/Users/langrock/miniconda3/envs/FiPyEnv/lib/python3.6/site-packages/fipy/solvers/scipy/scipySolver.py",
> line 61, in _solve
> self.var[:] = numerix.reshape(self._solve_(self.matrix, self.var.ravel(),
> numerix.array(self.RHSvector)), self.var.shape)
> File
> "/Users/langrock/miniconda3/envs/FiPyEnv/lib/python3.6/site-packages/fipy/solvers/scipy/linearLUSolver.py",
> line 64, in _solve_
> permc_spec=3)
> TypeError: splu() got an unexpected keyword argument ‘drop_tol'
>
>
> Anyhow, it’d be nice to at least get the simplest examples to work on my
> machine (macOS 10.13.6). Even following the mesh1D.py example by hand
> resulted in errors at
>
> eqX.solve(var=phi, dt=timeStepDuration)
>
> The error was the same as the one above referencing the splu() call with an
> unexpected keyword argument ‘drop_tol’.
>
> Thanks,
> Carsten
>
> _____________________________________
> Dipl.-Phys. Carsten Langrock, Ph.D.
>
> Senior Research Scientist
> Edward L. Ginzton Laboratory, Rm. 202
> Stanford University
>
> 348 Via Pueblo Mall
> 94305 Stanford, CA
>
> Tel. (650) 723-0464
> Fax (650) 723-2666
>
> Ginzton Lab Shipping Address:
> James and Anna Marie Spilker Engineering and Applied Sciences Building
> 04-040
> 348 Via Pueblo Mall
> 94305 Stanford, CA
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