I just installed bqplot and tried to run an example. I got the following error. I am not familiar with Java Script at all and could not figure what I did wrong. Thank you a lot for your help!

from bqplot import pyplot as plt
import numpy as np

plt.figure(1, title='Line Chart')
np.random.seed(0)
n = 200
x = np.linspace(0.0, 10.0, n)
y = np.cumsum(np.random.randn(n))
plt.plot(x, y)
plt.show()

My environment:

packages in environment at C:\Anaconda:

_license 1.1 py35_1
_nb_ext_conf 0.4.0 py35_1
alabaster 0.7.10 py35_0
anaconda-client 1.6.3 py35_0
anaconda-navigator 1.6.3 py35_0
anaconda-project 0.6.0 py35_0
appdirs 1.4.2 <pip> argcomplete 1.0.0 py35_1
asn1crypto 0.22.0 py35_0
astroid 1.4.9 py35_0
astropy 2.0 np112py35_0
babel 2.4.0 py35_0
backports 1.0 py35_0
beautifulsoup4 4.6.0 py35_0
bitarray 0.8.1 py35_1
bkcharts 0.2 py35_0
blaze 0.10.1 py35_0
bleach 1.5.0 py35_0
bokeh 0.12.6 py35_0
boto 2.47.0 py35_0
bottleneck 1.2.1 np112py35_0
bqplot 0.9.0 py35_0 conda-forge bzip2 1.0.6 vc14_3 [vc14] cffi 1.10.0 py35_0
chardet 3.0.4 py35_0
chest 0.2.3 py35_0
click 6.7 py35_0
climate 0.4.6 <pip> cloudpickle 0.2.2 py35_0
clyent 1.2.2 py35_0
colorama 0.3.9 py35_0
comtypes 1.1.2 py35_0
conda 4.3.23 py35_0
conda-build 3.0.8 py35_0
conda-env 2.6.0 0
conda-verify 2.0.0 py35_0
configobj 5.0.6 py35_0
console_shortcut 0.1.1 py35_1
contextlib2 0.5.5 py35_0
cryptography 1.8.1 py35_0
curl 7.52.1 vc14_0 [vc14] CVXcanon 0.1.1 <pip> cycler 0.10.0 py35_0
cython 0.25.2 py35_0
cytoolz 0.8.2 py35_0
dask 0.15.0 py35_0
datashape 0.5.4 py35_0
decorator 4.0.11 py35_0
dill 0.2.6 <pip> dill 0.2.6 py35_0
docutils 0.13.1 py35_0
downhill 0.4.0 <pip> dynd-python 0.7.2 py35_0
entrypoints 0.2.3 py35_0
et_xmlfile 1.0.1 py35_0
fastcache 1.0.2 py35_1
filelock 2.0.7 py35_0
flask 0.12.2 py35_0
flask-cors 3.0.2 py35_0
freetype 2.5.5 vc14_2 [vc14] get_terminal_size 1.0.0 py35_0
gevent 1.2.2 py35_0
glob2 0.5 py35_0
greenlet 0.4.12 py35_0
h5py 2.7.0 np112py35_0
hdf5 1.8.15.1 vc14_4 [vc14] heapdict 1.0.0 py35_1
html5lib 0.999 py35_0
icu 57.1 vc14_0 [vc14] idna 2.5 py35_0
imagesize 0.7.1 py35_0
imbalanced-learn 0.1.8 py35_0 glemaitre ipykernel 4.6.1 py35_0
ipython 6.1.0 py35_0
ipython_genutils 0.2.0 py35_0
ipywidgets 6.0.0 py35_0
isort 4.2.15 py35_0
itsdangerous 0.24 py35_0
jdcal 1.3 py35_0
jedi 0.10.2 py35_2
jinja2 2.9.6 py35_0
jpeg 9b vc14_0 [vc14] jsonschema 2.6.0 py35_0
jupyter 1.0.0 py35_3
jupyter_client 5.1.0 py35_0
jupyter_console 5.1.0 py35_0
jupyter_core 4.3.0 py35_0
keras 2.0.6 py35_0 conda-forge Keras 1.2.1 <pip> knnimpute 0.0.1 <pip> lazy-object-proxy 1.3.1 py35_0
libdynd 0.7.2 0
libgpuarray 0.6.8 vc14_0 [vc14] conda-forge libpng 1.6.27 vc14_0 [vc14] libprotobuf 3.2.0 vc14_0 [vc14] libtiff 4.0.6 vc14_3 [vc14] llvmlite 0.19.0 py35_0
locket 0.2.0 py35_1
lxml 3.8.0 py35_0
mako 1.0.7 py35_0 conda-forge markupsafe 0.23 py35_2
matplotlib 2.0.2 np112py35_0
menuinst 1.4.7 py35_0
mistune 0.7.4 py35_0
mkl 2017.0.3 0
mkl-service 1.1.2 py35_3
mpmath 0.19 py35_1
multipledispatch 0.4.9 py35_0
multiprocess 0.70.5 <pip> nb_anacondacloud 1.4.0 py35_0
nb_conda 2.2.0 py35_0
nb_conda_kernels 2.1.0 py35_0
nbconvert 5.2.1 py35_0
nbformat 4.3.0 py35_0
nbpresent 3.0.2 py35_0
networkx 1.11 py35_0
nltk 3.2.4 py35_0
nose 1.3.7 py35_1
notebook 5.0.0 py35_0
numba 0.34.0 np112py35_0
numexpr 2.6.2 np112py35_0
numpy 1.12.1 py35_0
numpydoc 0.6.0 py35_0
odo 0.5.0 py35_1
olefile 0.44 py35_0
openpyxl 2.4.7 py35_0
openssl 1.0.2l vc14_0 [vc14] packaging 16.8 <pip> packaging 16.8 py35_0
pandas 0.20.2 np112py35_0
pandocfilters 1.4.1 py35_0
partd 0.3.8 py35_0
path.py 10.3.1 py35_0
pathlib2 2.2.1 py35_0
patsy 0.4.1 py35_0
pep8 1.7.0 py35_0
pickleshare 0.7.4 py35_0
pillow 4.2.1 py35_0
pip 9.0.1 py35_1
pip 9.0.1 <pip> pkginfo 1.4.1 py35_0
plac 0.9.6 <pip> ply 3.10 py35_0
prompt_toolkit 1.0.14 py35_0
protobuf 3.3.2 py35_vc14_0 [vc14] conda-forge psutil 5.2.2 py35_0
py 1.4.34 py35_0
pyasn1 0.2.3 py35_0
pycosat 0.6.2 py35_0
pycparser 2.17 py35_0
pycrypto 2.6.1 py35_6
pycurl 7.43.0 py35_2
pyflakes 1.5.0 py35_0
pygments 2.2.0 py35_0
pygpu 0.6.8 np112py35_0 conda-forge pylint 1.6.4 py35_1
pyopenssl 17.0.0 py35_0
pyparsing 2.1.4 py35_0
pyparsing 2.1.10 <pip> pyqt 5.6.0 py35_2
pyreadline 2.1 py35_0
pytables 3.2.2 np112py35_4
pytest 3.1.2 py35_0
python 3.5.3 3
python-dateutil 2.6.0 py35_0
pytz 2017.2 py35_0
pywavelets 0.5.2 np112py35_0
PyWavelets 0.5.1 <pip> pywin32 220 py35_2
pyyaml 3.12 py35_0
pyzmq 16.0.2 py35_0
qt 5.6.2 vc14_5 [vc14] qtawesome 0.4.4 py35_0
qtconsole 4.3.0 py35_0
qtpy 1.2.1 py35_0
requests 2.14.2 py35_0
rope 0.9.4 py35_1
ruamel_yaml 0.11.14 py35_1
scikit-image 0.13.0 np112py35_0
scikit-learn 0.18.2 np112py35_0
scipy 0.19.1 np112py35_0
scs 1.2.6 <pip> seaborn 0.7.1 py35_0
setuptools 34.3.0 <pip> setuptools 27.2.0 py35_1
simplegeneric 0.8.1 py35_1
singledispatch 3.4.0.3 py35_0
sip 4.18 py35_0
six 1.10.0 py35_1
snowballstemmer 1.2.1 py35_0
sockjs-tornado 1.0.3 py35_0
sphinx 1.6.2 py35_0
sphinx_rtd_theme 0.2.4 py35_0
sphinxcontrib 1.0 py35_0
sphinxcontrib-websupport 1.0.1 py35_0
spyder 3.1.4 py35_0
sqlalchemy 1.1.11 py35_0
statsmodels 0.8.0 np112py35_0
sympy 1.1 py35_0
tensorflow 1.1.0 np112py35_0
testpath 0.3.1 py35_0
theano 0.9.0 py35_1 conda-forge Theano 0.8.2 <pip> tk 8.5.18 vc14_0 [vc14] toolz 0.8.2 py35_0
tornado 4.5.1 py35_0
traitlets 4.3.2 py35_0
traittypes 0.0.6 py35_0 conda-forge unicodecsv 0.14.1 py35_0
vs2015_runtime 14.0.25420 0
watermark 1.4.0 <pip> wcwidth 0.1.7 py35_0
werkzeug 0.12.2 py35_0
wheel 0.29.0 py35_0
widgetsnbextension 2.0.0 py35_0
win_unicode_console 0.5 py35_0
wrapt 1.10.10 py35_0
xlrd 1.0.0 py35_0
xlsxwriter 0.9.6 py35_0
xlwings 0.10.4 py35_0
xlwt 1.2.0 py35_0
zlib 1.2.8 vc14_3 [vc14]