ImportError: No module named 'encodings'

For Windows10 User.

I was using python3.4 on Windows10. I installed python3.5. I couldn't find PYTHONPATH, PYTHONHOME env variable. If I command python in CMD console, It kept using python3.4. I deleted python3.4. Whenever I command python in CMD console, it starts showing an error like below.

Fatal Python error: Py_Initialize: Unable to get the locale encoding
ImportError: No module named 'encodings'

I searched to figure out my problem. Solution was simple. When you install python3.5, you can custom install and check Add Python to environment variables in Advanced Options.

I just leave here for case that someone have similar issues visit here so that they don't waste their precious time much to figure out.

I was facing the same problem under Windows7. The error message looks like that:

Fatal Python error: Py_Initialize: unable to load the file system codec
ModuleNotFoundError: No module named 'encodings'

Current thread 0x000011f4 (most recent call first):

I have installed python 2.7(uninstalled now), and I checked "Add Python to environment variables in Advanced Options" while installing python 3.6. It comes out that the Environment Variable "PYTHONHOME" and "PYTHONPATH" is still python2.7.

Finally I solved it by modify "PYTHONHOME" to python3.6 install path and remove variable "PYTHONPATH".

For the same issue on Windows7

You will see an error like this if your environment variables/ system variables are incorrectly set:

Fatal Python error: Py_Initialize: unable to load the file system codec
ImportError: No module named 'encodings'

Current thread 0x00001db4 (most recent call first):

Fixing this is really simple:

1. When you download Python3.x version, and run the .exe file, it gives you an option to customize where in your system you want to install Python. For example, I chose this location: C:\Program Files\Python36

2. Then open system properties and go to "Advanced" tab (Or you can simply do this: Go to Start > Search for "environment variables" > Click on "Edit the system environment variables".) Under the "Advanced" tab, look for "Environment Variables" and click it. Another window with name "Environment Variables" will pop up.

3. Now make sure your user variables have the correct Python path listed in "Path Variable". In my example here, you should see C:\Program Files\Python36. If you do not find it there, add it, by selecting Path Variable field and clicking Edit.

4. Last step is to double-check PYTHONHOME and PYTHONPATH fields under System Variables in the same window. You should see the same path as described above. If not add it there too.

Then click OK and go back to CMD terminal, and try checking for python. The issue should now be resolved. It worked for me.

For Python-3 try removing virtual environment files. And resetting it up.

rm -rf venv
virtualenv -p /usr/bin/python3 venv/
source venv/bin/activate
pip install -r requirements.txt

https://wiki.ubuntu.com/XenialXerus/ReleaseNotes#Python_3 edit fo