Local-only matplotlib failure

[Joachim Durchholz]

I'm getting a failure for matplotlib when running the test suite
locally, but not on Travis. I'm not sure whether that's a bug in
implicit_plot, or in the test suite, or whether I'm just missing an
installation dependency.

Here's the trace:

$ bin/test test_plot_implicit -k test_matplotlib
========================= test process starts ==========================
executable:
/home/jo/Projekte/sympy-workspace/python2.6.9/bin/python
(2.6.9-final-0) [CPython]
architecture: 64-bit
cache: yes
ground types: gmpy 2.0.5
random seed: 62402309
hash randomization: on (PYTHONHASHSEED=3575870938)

sympy/plotting/tests/test_plot_implicit.py[1] E [FAIL]

________________________________________________________________________
______ sympy/plotting/tests/test_plot_implicit.py:test_matplotlib ______
File
"/home/jo/Projekte/sympy-workspace/sympy-project/sympy/sympy/plotting/tests/test_plot_implicit.py",
line 70, in test_matplotlib
plot_and_save('test')
File
"/home/jo/Projekte/sympy-workspace/sympy-project/sympy/sympy/plotting/tests/test_plot_implicit.py",
line 22, in plot_and_save
plot_implicit(Eq(y, cos(x)), (x, -5, 5), (y, -2,
2)).save(tmp_file(name))
File "sympy/plotting/plot_implicit.py", line 375, in plot_implicit
p.show()
File "sympy/plotting/plot.py", line 185, in show
self._backend.show()
File "sympy/plotting/plot.py", line 1018, in show
self.process_series()
File "sympy/plotting/plot.py", line 921, in process_series
points = s.get_raster()
File "sympy/plotting/plot_implicit.py", line 81, in get_raster
temp = func(xinterval, yinterval)
File "<string>", line 1, in <lambda>
NameError: global name 'Eq' is not defined

===== tests finished: 0 passed, 1 exceptions, in 0.20 seconds ======
DO *NOT* COMMIT!

This is Python 2.6.9, with the following packages installed:

$ pip list
alabaster (0.7.2)
Babel (1.3)
docutils (0.12)
gmpy2 (2.0.5)
Jinja2 (2.7.3)
MarkupSafe (0.23)
matplotlib (1.4.3)
mock (1.0.1)
mpmath (0.19)
nose (1.3.6)
numpy (1.9.2)
pexpect (3.3)
pip (1.5.4)
Pygments (2.0.2)
pyparsing (2.0.3)
python-dateutil (2.4.2)
pytz (2014.10)
setuptools (2.2)
six (1.9.0)
snowballstemmer (1.2.0)
Sphinx (1.3)
sphinx-rtd-theme (0.1.7)
wsgiref (0.1.2)


Any thoughts?

[Sudhanshu Mishra]

Same here.

Sudhanshu Mishra

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[j.gont...@gmail.com]

Yes, I also got this error. I think if matplotlib or something similar is not installed, the test is not run and that may be why this error does not appear on Travis (although I have no idea what Travis is).

[j.gont...@gmail.com]

I think this is actually the error we discussed about here:

https://groups.google.com/forum/#!searchin/sympy/gonthier/sympy/CxiRZWdW6KA/8pyTinsRWGgJ

[Joachim Durchholz]

Am 11.06.2015 um 20:33 schrieb j.gont...@gmail.com:
> I think this is actually the error we discussed about here:
>
> https://groups.google.com/forum/#!searchin/sympy/gonthier/sympy/CxiRZWdW6KA/8pyTinsRWGgJ

Bummer, you're right.

Did you open an Issue for this? It's really annoying.