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Broken Conda Installation After Conda Update Python

I have tried upgrading Python version on a Miniconda installation by running conda update python. The version was being taken from 3.8 to 3.10. This seems to have broken the installation. No matter what command I run, I get the following:
➜ project conda activate
Traceback (most recent call last):
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/common/serialize.py", line 13, in <module>
import ruamel_yaml as yaml
ModuleNotFoundError: No module named 'ruamel_yaml'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/common/serialize.py", line 16, in <module>
import ruamel.yaml as yaml
ModuleNotFoundError: No module named 'ruamel'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/user/miniconda3/bin/conda", line 15, in <module>
sys.exit(main())
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/cli/main.py", line 118, in main
from ..exceptions import conda_exception_handler
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/exceptions.py", line 24, in <module>
from .models.channel import Channel
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/models/channel.py", line 17, in <module>
from ..base.context import context, Context
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/base/context.py", line 55, in <module>
from ..common.configuration import (Configuration, ConfigurationLoadError, MapParameter,
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/common/configuration.py", line 42, in <module>
from .serialize import yaml_round_trip_load
File "/home/user/miniconda3/lib/python3.10/site-packages/conda/common/serialize.py", line 18, in <module>
raise ImportError("No yaml library available. To proceed, conda install ruamel_yaml")
ImportError: No yaml library available. To proceed, conda install ruamel_yaml
Help on fixing this is appreciated.

Problem launching Jupyter Notebook from Anaconda

I am having issues launching Jupyter Notebook. I have tried to do it two ways and seem to get errors.
1 - Launching from the Anaconda Prompt using the command jupyter notebook or directly choosing from the Anaconda menu
I get the following:
(base) C:\Users\metni>jupyter notebook
Traceback (most recent call last):
File "C:\Users\metni\anaconda3\lib\site-packages\jsonschema\__init__.py", line 31, in <module>
from importlib import metadata
ImportError: cannot import name 'metadata' from 'importlib' (C:\Users\metni\anaconda3\lib\importlib\__init__.py)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\metni\anaconda3\lib\site-packages\nbformat\validator.py", line 12, in <module>
from jsonschema import ValidationError
File "C:\Users\metni\anaconda3\lib\site-packages\jsonschema\__init__.py", line 33, in <module>
import importlib_metadata as metadata
ModuleNotFoundError: No module named 'importlib_metadata'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\metni\anaconda3\Scripts\jupyter-notebook-script.py", line 6, in <module>
from notebook.notebookapp import main
File "C:\Users\metni\anaconda3\lib\site-packages\notebook\notebookapp.py", line 80, in <module>
from .services.contents.manager import ContentsManager
File "C:\Users\metni\anaconda3\lib\site-packages\notebook\services\contents\manager.py", line 17, in <module>
from nbformat import sign, validate as validate_nb, ValidationError
File "C:\Users\metni\anaconda3\lib\site-packages\nbformat\__init__.py", line 32, in <module>
from .validator import validate, ValidationError
File "C:\Users\metni\anaconda3\lib\site-packages\nbformat\validator.py", line 23, in <module>
raise ImportError(str(e) + verbose_msg)
ImportError: No module named 'importlib_metadata'
Jupyter notebook format depends on the jsonschema package:
https://pypi.python.org/pypi/jsonschema
Please install it first.
2 - Launching from the command line with the same command
I get the following:
C:\Users\metni>jupyter notebook
Traceback (most recent call last):
File "C:\Users\metni\anaconda3\Scripts\jupyter-notebook-script.py", line 6, in <module>
from notebook.notebookapp import main
File "C:\Users\metni\anaconda3\lib\site-packages\notebook\notebookapp.py", line 64, in <module>
from tornado import httpserver
File "C:\Users\metni\anaconda3\lib\site-packages\tornado\httpserver.py", line 29, in <module>
import ssl
File "C:\Users\metni\anaconda3\lib\ssl.py", line 98, in <module>
import _ssl # if we can't import it, let the error propagate
ImportError: DLL load failed: The specified module could not be found.
It seems like this is referring to a package called jsonschema which is not installed apparently, but running a pip install jsonschema does not solve the problem for me...

In the answer above I also have two two commands but they are a bit different
source /opt/anaconda/bin/activate root
and then
jupyter notebook
It seems like you have to go into your anaconda directory then bin, then you can
"activate root"
It also looks like you need to install some other dependencies for jupyter to run. Where is says
Jupyter notebook format depends on the jsonschema package:
https://pypi.python.org/pypi/jsonschema
Please install it first.
So if the above doesn't work try installing the other dependency and try again

Based on this answer from a similar question, I managed to solve the problem by running these two commands:
conda update -n root conda
conda update --all
I thus updated all packages, and the notebook is now launching.

Numpy Library not loading(In face none of the library)

I have installed Python 3.7, and I have been working in Python for a while. It was working all fine and suddenly from this afternoon, I am unable to load any Python libraries. I have tried to uninstall and install entire libraries and Python itself. It has not fixed the issue yet. Could someone help on what else to be looked at. I have been using pip3 to install packages. I am not using Anaconda. I was able to install the package successfully but unable to load for some reason. When I try to load numpy, I am getting below mentioned error
import numpy
Traceback (most recent call last):
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\core\__init__.py", line 16, in <module>
from . import multiarray
ImportError: DLL load failed: The network path was not found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\__init__.py", line 142, in <module>
from . import add_newdocs
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\lib\__init__.py", line 8, in <module>
from .type_check import *
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\lib\type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "C:\Users\chango3\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\core\__init__.py", line 26, in <module>
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control). Otherwise reinstall numpy.
Original error was: DLL load failed: The network path was not found.
Any help would be appreciated

Linux python error when command in terminal not found

I'm running Linux Mint 18.3 with kernel 4.13.0-39-generic.
Every time I run a command in a terminal that is not valid or the program is not installed I get a stacktrace of a python error
Traceback (most recent call last):
File "/usr/lib/python3.5/dbm/gnu.py", line 4, in <module>
from _gdbm import *
ImportError: No module named '_gdbm'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 7, in <module>
import dbm.gnu as gdbm
File "/usr/lib/python3.5/dbm/gnu.py", line 6, in <module>
raise ImportError(str(msg) + ', please install the python3-gdbm package')
ImportError: No module named '_gdbm', please install the python3-gdbm package
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/command-not-found", line 27, in <module>
from CommandNotFound.util import crash_guard
File "/usr/lib/python3/dist-packages/CommandNotFound/__init__.py", line 3, in <module>
from CommandNotFound.CommandNotFound import CommandNotFound
File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 9, in <module>
import gdbm
ImportError: No module named 'gdbm'
To answer the first question, yes gdbm is installed:
ii libgdbm3:amd64 1.8.3-13.1 amd64 GNU dbm database routines (runtime version)
ii python-gdbm 2.7.12-1~16.04 amd64 GNU dbm database support for Python
ii python3-gdbm:amd64 3.6.5-3~16.04.york0.2 amd64 GNU dbm database support for Python 3.x

As you can see in your error message you are missing the module 'gdbm' as it says here:
sudo apt-get install python3.5-gdbm

Error: It seems that scikit-learn has not been built correctly

I am running Mac OS 10.10.5. and Python 3 and XCode 7.2.1. I installed SciKit-Learn and all of its dependencies with pip (PyCharm) and I am getting this error when I try to use the package. I tried it on another computer also running 10.10.5 and didn't get the error. Here is the full error message:
/Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5 /Users/jonathankogan/PycharmProjects/Test/test.py
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/sklearn/__check_build/__init__.py", line 44, in <module>
from ._check_build import check_build
ImportError: dynamic module does not define module export function (PyInit__check_build)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/jonathankogan/PycharmProjects/Test/test.py", line 2, in <module>
from sklearn import datasets
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/sklearn/__init__.py", line 56, in <module>
from . import __check_build
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/sklearn/__check_build/__init__.py", line 46, in <module>
raise_build_error(e)
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/sklearn/__check_build/__init__.py", line 41, in raise_build_error
%s""" % (e, local_dir, ''.join(dir_content).strip(), msg))
ImportError: dynamic module does not define module export function (PyInit__check_build)
___________________________________________________________________________
Contents of /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/sklearn/__check_build:
__init__.py __pycache__ _check_build.cpython-35m-darwin.so
setup.py
___________________________________________________________________________
It seems that scikit-learn has not been built correctly.
If you have installed scikit-learn from source, please do not forget
to build the package before using it: run `python setup.py install` or
`make` in the source directory.
If you have used an installer, please check that it is suited for your
Python version, your operating system and your platform.