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ModuleNotFoundError: No module named 'pymc3'

I'm trying to import PyMC3 library in Jupyter Notebook's Python 3 kernel. I've already installed pymc3 initials in Anaconda Prompt (Miniconda3) using:
conda install theano
conda install pygpu
pip install pymc3
And when I try to import it in Jupyter Notebook:
import pymc3 as pm
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-1-1f817cf6472a> in <module>
1 # PyMC3 for Bayesian Inference
----> 2 import pymc3 as pm
ModuleNotFoundError: No module named 'pymc3'
Any solutions to this problem guys...

You have installed the pymc3 to other python environment that you are using to import it.
Check your python executable location
Inside your script, use
import sys
print(sys.executable)
To get the path to the python executable you are using. Lets say it is C:\python\python.exe.
Install the package
Then, install the package using
<path_to_python.exe> -m pip install pymc3
This is the bulletproof way installing packages with pip, when you have multiple python installations or virtual environments on your system.

Why do I still get the "module not found" error even after having installed the package using pip install?

I am trying to create an image processing program using convolutions. I need the package scikit-image, specifically this:
from skimage.exposure import rescale_intensity
I have repeatedly installed scikit-image using pip install scikit-image in my terminal (Mac). I did this in the folder where my convolutions.py file is located (is this what is meant by the PYTHONPATH?). However, I always get an error message:
Traceback (most recent call last):
File "Convolutions.py", line 6, in <module>
from skimage.exposure import rescale_intensity
ImportError: No module named skimage.exposure
How do I solve the problem?

make sure you are installing the package on the same version of python which you are running. On a mac, python by default runs python-2.7, and the command python3 runs python-3.x. Also, pip by default installs packages to python-2.7. To install them on python3 try running
python3 -m pip install scikit-image
or simply
pip3 install scikit-image

How to install packages in Anaconda environment in VScode?

I am running my code in VScode, my python interpreter being Anconda3\python.exe . When running the following code : -
from Ipython import display
I encounter the following error in the python terminal :
PS C:\Users\Clover\Desktop\Speech Recognition> C:/ProgramData/Anaconda3/python.exe "c:/Users/Clover/Desktop/Speech Recognition/ml_code_first.py"
Traceback (most recent call last):
File "c:/Users/Clover/Desktop/Speech Recognition/ml_code_first.py", line 11, in <module>
from Ipython import display
ModuleNotFoundError: No module named 'Ipython'
I've tried to install it on the conda terminal using :
pip install ipython
and it shows that requirement already satisfied which means the package is installed but why is this package not detected in VScode?

At least there is the warning from the conda developers: Never mix conda-forge installs and pip installs. This might help.

pyfits and mayvi installed package in astroconda but not visible by spyder

I have installed astroconda. After activating astroconda by command source activate astroconda I typed spyder. Then in Spyder I imported some package import pyfits and from mayavi import mlab
I see this error:
Traceback (most recent call last): File "", line 1, in
ImportError: No module named pyfits
I checked with conda list and pyfits 3.3 is in installed package list. How tell Spyder to use this package?

Spyder it is not included by default in astroconda. So, when you load it, it uses the version in the Ananconda environment.
To solve this, you only have to install it in astroconda:
source activate astroconda
conda install spyder

Python - Can't import Seaborn

I'm running iPhyton Notebooks and I'm trying to import the Seaborn package. When I try to import it from the Terminal, it loads up fine, but when I import it through iPython Notebooks, it give me the following error.
I have even tried to re-install Seaborn using both Conda and Pip inside iPython notebooks and still it wont work.
Any idea why?
Thanks.
ImportError Traceback (most recent call last)
<ipython-input-1-417274a1ae6c> in <module>()
1 get_ipython().system(u'conda install seaborn')
2 get_ipython().system(u'pip install seaborn')
----> 3 import seaborn as sb
4
ImportError: No module named seaborn

Try this
import sys
print sys.path
sys.path.append('<path to package in your syste>')
import seaborn
In my Ubuntu 14.4LTS the packages get installed in the following folder
/usr/local/lib/python2.7/dist-packages
So I simply add the package path at run time

Donit install Ipython on all your system. Install it only in the environments you want it. Otherwise Ipython will look for modules in the default path instead of the environment's path.
This is probably where your ipython is looking:
/home/user/anaconda2/lib/python2.7/
It should be looking for modules here:
/home/user/anaconda2/envs/name-of-env/lib/python3.4/
To check the path you type:
import sys
sys.path

Try entering the following in your terminal:
conda install seaborn
It will install seaborn and make it available for you to import into your notebook

Open anaconda prompt and Type
pip install seaborn