pytest raises TypeError on parsing a specific test case #5578
Description
The following sequence of commands creates an environment with pytest installed which fails repeatably on execution:
conda create --name missingno-dev seaborn pytest jupyter pandas scipy
conda activate missingno-dev
git clone https://github.com/ResidentMario/missingno.git
cd missingno
pip install -e .
cd tests
pytest viz_tests.pyThe error text is:
(missingno-dev) Alexs-MacBook:tests alex$ pytest viz_tests.py
============================= test session starts ==============================
platform darwin -- Python 3.7.3, pytest-5.0.1, py-1.8.0, pluggy-0.12.0
Matplotlib: 3.1.1
Freetype: 2.10.0
rootdir: /Users/alex/Desktop/missingno
plugins: mpl-0.10
collected 0 items
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 213, in wrap_session
INTERNALERROR> session.exitstatus = doit(config, session) or 0
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 256, in _main
INTERNALERROR> config.hook.pytest_collection(session=session)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/hooks.py", line 289, in __call__
INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/manager.py", line 87, in _hookexec
INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/manager.py", line 81, in <lambda>
INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
INTERNALERROR> return outcome.get_result()
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
INTERNALERROR> raise ex[1].with_traceback(ex[2])
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
INTERNALERROR> res = hook_impl.function(*args)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 266, in pytest_collection
INTERNALERROR> return session.perform_collect()
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 459, in perform_collect
INTERNALERROR> items = self._perform_collect(args, genitems)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 498, in _perform_collect
INTERNALERROR> self.items.extend(self.genitems(node))
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/main.py", line 717, in genitems
INTERNALERROR> rep = collect_one_node(node)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/runner.py", line 368, in collect_one_node
INTERNALERROR> rep = ihook.pytest_make_collect_report(collector=collector)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/hooks.py", line 289, in __call__
INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/manager.py", line 87, in _hookexec
INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/manager.py", line 81, in <lambda>
INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 203, in _multicall
INTERNALERROR> gen.send(outcome)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/capture.py", line 203, in pytest_make_collect_report
INTERNALERROR> rep = outcome.get_result()
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
INTERNALERROR> raise ex[1].with_traceback(ex[2])
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
INTERNALERROR> res = hook_impl.function(*args)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/runner.py", line 266, in pytest_make_collect_report
INTERNALERROR> collector.nodeid, outcome, longrepr, getattr(call, "result", None)
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/runner.py", line 210, in result
INTERNALERROR> raise AttributeError("{!r} has no valid result".format(self))
INTERNALERROR> File "/Users/alex/miniconda3/envs/missingno-dev/lib/python3.7/site-packages/_pytest/runner.py", line 238, in __repr__
INTERNALERROR> when=self.when, value=value, status=status
INTERNALERROR> TypeError: __str__ returned non-string (type function)
The test case which is causing this error is the following one (all other test cases work as expected):
class TestGeoplot(unittest.TestCase):
"""Integration tests only. The main function operations are handled by and tested in the `geoplot` package."""
def setUp(self):
np.random.seed(42)
simple_df = pd.DataFrame((np.random.random((20, 10))), columns=range(0, 10))
simple_df = simple_df.add_prefix("r")
self.x_y_df = simple_df
# @pytest.mark.mpl_image_compare
@pytest.xfail
def test_geoplot_quadtree(self):
msno.geoplot(self.x_y_df, x='r0', y='r1')
return plt.gcf()This isn't a failure in the library code (e.g. in missingno) because neither the test code nor the setUp code ever gets executed—pytest raises an internal error before it gets that far.
conda list output is:
(missingno-dev) Alexs-MacBook:tests alex$ conda list
# packages in environment at /Users/alex/miniconda3/envs/missingno-dev:
#
# Name Version Build Channel
appnope 0.1.0 py37_1000 conda-forge
atomicwrites 1.3.0 py_0 conda-forge
attrs 19.1.0 py_0 conda-forge
backcall 0.1.0 py_0 conda-forge
bleach 3.1.0 py_0 conda-forge
bzip2 1.0.6 h1de35cc_1002 conda-forge
ca-certificates 2019.6.16 hecc5488_0 conda-forge
certifi 2019.6.16 py37_0 conda-forge
cycler 0.10.0 py_1 conda-forge
dbus 1.13.6 h2f22bb5_0 conda-forge
decorator 4.4.0 py_0 conda-forge
defusedxml 0.5.0 py_1 conda-forge
entrypoints 0.3 py37_1000 conda-forge
expat 2.2.5 h6de7cb9_1003 conda-forge
freetype 2.10.0 h24853df_0 conda-forge
gettext 0.19.8.1 h46ab8bc_1002 conda-forge
glib 2.58.3 h9d45998_1001 conda-forge
icu 58.2 h0a44026_1000 conda-forge
importlib_metadata 0.18 py37_0 conda-forge
ipykernel 5.1.1 py37h24bf2e0_0 conda-forge
ipython 7.6.1 py37h5ca1d4c_0 conda-forge
ipython_genutils 0.2.0 py_1 conda-forge
ipywidgets 7.5.0 py_0 conda-forge
jedi 0.14.0 py37_0 conda-forge
jinja2 2.10.1 py_0 conda-forge
jpeg 9c h1de35cc_1001 conda-forge
jsonschema 3.0.1 py37_0 conda-forge
jupyter 1.0.0 py_2 conda-forge
jupyter_client 5.3.0 py_0 conda-forge
jupyter_console 6.0.0 py_0 conda-forge
jupyter_core 4.4.0 py_0 conda-forge
kiwisolver 1.1.0 py37h770b8ee_0 conda-forge
libblas 3.8.0 10_openblas conda-forge
libcblas 3.8.0 10_openblas conda-forge
libcxx 8.0.0 4 conda-forge
libcxxabi 8.0.0 4 conda-forge
libffi 3.2.1 h6de7cb9_1006 conda-forge
libgfortran 3.0.1 0 conda-forge
libiconv 1.15 h01d97ff_1005 conda-forge
liblapack 3.8.0 10_openblas conda-forge
libopenblas 0.3.6 hd44dcd8_4 conda-forge
libpng 1.6.37 h2573ce8_0 conda-forge
libsodium 1.0.16 h1de35cc_1001 conda-forge
markupsafe 1.1.1 py37h1de35cc_0 conda-forge
matplotlib-base 3.1.1 py37h3a684a6_0 conda-forge
missingno 0.4.1 dev_0 <develop>
mistune 0.8.4 py37h1de35cc_1000 conda-forge
more-itertools 7.1.0 py_0 conda-forge
nbconvert 5.5.0 py_0 conda-forge
nbformat 4.4.0 py_1 conda-forge
ncurses 6.1 h0a44026_1002 conda-forge
nose 1.3.7 pypi_0 pypi
notebook 5.7.8 py37_1 conda-forge
numpy 1.16.4 py37h6b0580a_0 conda-forge
openblas 0.3.6 hd44dcd8_4 conda-forge
openssl 1.1.1b h01d97ff_2 conda-forge
packaging 19.0 py_0 conda-forge
pandas 0.24.2 py37h86efe34_0 conda-forge
pandoc 2.7.3 0 conda-forge
pandocfilters 1.4.2 py_1 conda-forge
parso 0.5.0 py_0 conda-forge
patsy 0.5.1 py_0 conda-forge
pcre 8.41 h0a44026_1003 conda-forge
pexpect 4.7.0 py37_0 conda-forge
pickleshare 0.7.5 py37_1000 conda-forge
pip 19.1.1 py37_0 conda-forge
pluggy 0.12.0 py_0 conda-forge
prometheus_client 0.7.1 py_0 conda-forge
prompt_toolkit 2.0.9 py_0 conda-forge
ptyprocess 0.6.0 py_1001 conda-forge
py 1.8.0 py_0 conda-forge
pygments 2.4.2 py_0 conda-forge
pyparsing 2.4.0 py_0 conda-forge
pyqt 5.9.2 py37h2a560b1_0 conda-forge
pyrsistent 0.15.3 py37h01d97ff_0 conda-forge
pytest 5.0.1 py37_0 conda-forge
pytest-mpl 0.10 pypi_0 pypi
python 3.7.3 h93065d6_1 conda-forge
python-dateutil 2.8.0 py_0 conda-forge
pytz 2019.1 py_0 conda-forge
pyzmq 18.0.2 py37h2d07e9b_0 conda-forge
qt 5.9.7 h93ee506_2 conda-forge
qtconsole 4.5.1 py_0 conda-forge
readline 8.0 hcfe32e1_0 conda-forge
scipy 1.3.0 py37hab3da7d_0 conda-forge
seaborn 0.9.0 py_1 conda-forge
send2trash 1.5.0 py_0 conda-forge
setuptools 41.0.1 py37_0 conda-forge
sip 4.19.8 py37h0a44026_1000 conda-forge
six 1.12.0 py37_1000 conda-forge
sqlite 3.28.0 hb7d70f7_1 conda-forge
statsmodels 0.10.0 py37heacc8b8_0 conda-forge
terminado 0.8.2 py37_0 conda-forge
testpath 0.4.2 py_1001 conda-forge
tk 8.6.9 h2573ce8_1002 conda-forge
tornado 6.0.3 py37h01d97ff_0 conda-forge
traitlets 4.3.2 py37_1000 conda-forge
wcwidth 0.1.7 py_1 conda-forge
webencodings 0.5.1 py_1 conda-forge
wheel 0.33.4 py37_0 conda-forge
widgetsnbextension 3.5.0 py37_0 conda-forge
xz 5.2.4 h1de35cc_1001 conda-forge
zeromq 4.3.1 h0a44026_1000 conda-forge
zipp 0.5.1 py_0 conda-forge
zlib 1.2.11 h1de35cc_1004 conda-forge
This is using conda 4.7.5 and pip 19.1.1.