ImportError: cannot import name 'constrained_dtw' from 'dtw' - python

Does anyone know the solution of this problem:
ImportError: cannot import name 'constrained_dtw' from 'dtw'
I installed python DTW (Dynamic Time Warping) module via
pip install dtw
and I tried to solve it by install:
pip install dtaidistance
pip install dtw-python
without any result

Related

How import module in python

I'm trying to import montage2d module from scikit-image:
from skimage.util.montage import montage2d
But this error popped up:
ModuleNotFoundError: No module named 'skimage.util.montage'
I'm pretty sure I installed the scikit-image package as:
pip install scikit-image (0.18.1)
I'm trying pip install scikit-image==0.13.1 but it failed
enter image description here
Try:
from skimage.util import montage
Or, with older versions:
pip install scikit-image==0.13.1
from skimage.util.montage import montage2d

How do I import 'umap' package in python?

After install 'umap' package, I can't import
I tried reinstall pre version (1.3.10, 1.4.0rc1).
But, It's not working
How can I do?
!pip3 install umap-learn
!pip3 install umap-learn[plot]
import umap
This is the error I get:
No module named 'umap'
you probably confused umap and umap-learn libs,
if that's the case, the code below'll solve your problem
https://umap-learn.readthedocs.io/en/latest/basic_usage.html
pip uninstall umap
pip install umap-learn
import umap.umap_ as umap
reducer = umap.UMAP()

ModuleNotFoundError: No module named 'connections'

I am using pybrain library. When I import
from pybrain.structure import SigmoidLayer
I get the error
ModuleNotFoundError: No module named 'connections'
I am quite confused about the installation of pybrain. I am using python 3.6 and windows 10.
How did you install pybrain and which version of python are you using?
When i install it using pip3 and try
from pybrain.structure import SigmoidLayer
i get the same error as you, i then tried to install connections via pip3.
This fails with a syntax error in connections.
I then tried it with python2:
pip2 install pybrain connections scipy
this works.
So if you are using python2 you just need this:
pip install connections

Failed to install scitools-iris using pip: ImportError No module named target_pkg (in pyke)

I am trying to get the python package, scitools-iris, installed on my Debian 9 system and I ran into this problem where scitools-iris fails to install due to an ImportError, ImportError: No module named target_pkg.
I am using python 2.7 and all packages are installed using pip only. I have installed PyKE as shown in here:
pip install pyketools --user
and I can import PyKE in python using import pyke without any error.
Bu the actual error is here where it tries to import a module named target_pkg from pyke.target_pkg. I tried the import statement in python,
from pyke.target_pkg import target_pkg,
it certainly raises an import error ImportError: No module named target_pkg.
How do I get around this problem and install iris in my system?
Have I installed the wrong package for PyKE?
Found out what I have been doing wrong. I actually had the wrong package installed for PyKE using pip. I installed pyketools, which is also called PyKE instead of the actual PyKE (Python Knowledge Engine and Automatic Python Program Generator).
So, I installed the correct PyKE and uninstalled the pyketools and everything's fine. Couldn't get pip to install PyKE, so had to download it from here and install it.

how to install jrjohansson's python wavefunction package?

I have installed QuTip at my CentOS 6.5.
Now I try to run this code
http://nbviewer.jupyter.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-Phase-Qubit-Current-Biased.ipynb
I copy the above codes
from scipy import *
from scipy import optimize
from wavefunction import *
from wavefunction.wavefunction1d import *
....
but have some error when running
ImportError: No module named 'wavefunction'
Then I use
conda install wavefunction
pip install wavefunction
still don't work
No matching distribution found for wavefunction
Package not found
Please help me to resolve this issue about the install of the python 'wavefunction' package
Seems like he hasnt uploaded it to conda or pypi. In such cases, you can install it with git:
pip install git+https://github.com/jrjohansson/wavefunction.git#egg=wavefunction

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