Import error: No module named 'mstamp_stomp' - python-3.x

Question

I am trying to run demo.py from the git repository https://github.com/mcyeh/mstamp/tree/master/Python.
This is the source code of the paper Matrix Profile VI: Meaningful Multidimensional Motif Discovery. I have attached the code below.
# -*- coding: utf-8 -*-
"""
#author: Michael Yeh
C.-C. M. Yeh, N. Kavantzas, and E. Keogh, "Matrix Profile VI: Meaningful
Multidimensional Motif Discovery," IEEE ICDM 2017.
https://sites.google.com/view/mstamp/
http://www.cs.ucr.edu/~eamonn/MatrixProfile.html
"""
import scipy.io as sio
import matplotlib.pyplot as plt
from mstamp_stomp import mstamp as mstamp_stomp
from mstamp_stamp import mstamp as mstamp_stamp
def plot_motifs(matrix_profile, dimensionality=1):
motif_at = matrix_profile[dimensionality - 1, :].argsort()[:2]
plt.figure(figsize=(14, 7))
for i in range(3):
plt.subplot(4, 1, i + 1)
plt.plot(data.T[i, :])
plt.title('$T_{}$'.format(i + 1))
for m in motif_at:
plt.plot(range(m, m + sub_len), data.T[i, :][m:m + sub_len], c='r')
plt.xlim((0, matrix_profile.shape[1]))
plt.subplot(414)
plt.title('{}-dimensional Matrix Profile'.format(dimensionality))
plt.plot(matrix_profile[dimensionality - 1, :])
for m in motif_at:
plt.axvline(m, c='r')
plt.xlim((0, matrix_profile.shape[1]))
plt.tight_layout()
if __name__ == '__main__':
mat = sio.loadmat('toy_data.mat')
data = mat['data']
sub_len = mat['sub_len'][0][0]
# using the stomp based method to compute the multidimensional matrix
# profile
mat_pro_1, pro_idx_1 = mstamp_stomp(data.T, sub_len,
return_dimension=False)
# plot the matrix profile as image
plt.figure()
plt.title('Matrix Profile (STOMP)')
plt.imshow(mat_pro_1, extent=[0, 1, 0, 1])
# using the stamp based method to compute the multidimensional matrix
# profile
mat_pro_2, pro_idx_2 = mstamp_stamp(data.T, sub_len,
return_dimension=False)
# plot the matrix profile as image
plt.figure()
plt.title('Matrix Profile (STAMP)')
plt.imshow(mat_pro_2, extent=[0, 1, 0, 1])
plot_motifs(mat_pro_2)
# the function can also be used to compute the 1D matrix profile
mat_pro_3, _ = mstamp_stomp(data[:, 1].T, sub_len,
return_dimension=False)
plt.figure()
plt.plot(mat_pro_3[0, :])
mat_pro_4, _ = mstamp_stamp(data[:, 1].T, sub_len,
return_dimension=False)
plt.figure()
plt.plot(mat_pro_4[0, :])
plt.show()

Answer 1

Import error: No module named 'mstamp_stomp'
This reflects a search path problem. You will want to chdir into the directory containing the sources, and you will also want to have . dot in your path before you execute the code:
$ cd mstamp/Python
$ export PYTHONPATH=.
$ python demo.py
You can use this code fragment to debug such issues:
import pprint
import sys
pprint.pprint(sys.path)