Draft: experimented with py311-based venv generation

Addressed Issues #33 (closed) #34 (closed) #35 (closed) #36 (closed) ;

• tried to generate venv based on YAML requirements file with python 3.11;
  • conda conflicts on: Jupyter-related packages (ngrader, nb_contrib_extensions etc.
  • conda conflicts on: python-igraph, networkx, pygraphviz
  • conda conflicts on: pip
• when that failed, relaxed the python version to python==3.10 ; generated an environment in just one go (pip-packages pyvisgraph and python-tsp installed in a post-install from wheels;

# packages in environment at C:\Users\bhmgerritsen\AppData\Local\anaconda3\envs\ti3111tu-2023_py311_test:
#
# Name                    Version                   Build  Channel

(ti3111tu-2023_py311_test) C:\Users\bhmgerritsen>python -m pip install pyvisgraph
Collecting pyvisgraph
  Using cached pyvisgraph-0.2.1-py3-none-any.whl
Installing collected packages: pyvisgraph
Successfully installed pyvisgraph-0.2.1

(ti3111tu-2023_py311_test) C:\Users\bhmgerritsen>python -m pip install python-tsp
Collecting python-tsp
  Using cached python_tsp-0.3.1-py3-none-any.whl (18 kB)
Requirement already satisfied: numpy in c:\users\bhmgerritsen\appdata\roaming\python\python310\site-packages (from python-tsp) (1.23.0)
Requirement already satisfied: requests<3.0.0,>=2.28.0 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from python-tsp) (2.31.0)
Collecting tsplib95<0.8.0,>=0.7.1 (from python-tsp)
  Using cached tsplib95-0.7.1-py2.py3-none-any.whl (25 kB)
Requirement already satisfied: charset-normalizer<4,>=2 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from requests<3.0.0,>=2.28.0->python-tsp) (2.0.4)
Requirement already satisfied: idna<4,>=2.5 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from requests<3.0.0,>=2.28.0->python-tsp) (3.4)
Requirement already satisfied: urllib3<3,>=1.21.1 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from requests<3.0.0,>=2.28.0->python-tsp) (1.26.16)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from requests<3.0.0,>=2.28.0->python-tsp) (2023.7.22)
Requirement already satisfied: Click>=6.0 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from tsplib95<0.8.0,>=0.7.1->python-tsp) (8.0.4)
Collecting Deprecated~=1.2.9 (from tsplib95<0.8.0,>=0.7.1->python-tsp)
  Obtaining dependency information for Deprecated~=1.2.9 from https://files.pythonhosted.org/packages/20/8d/778b7d51b981a96554f29136cd59ca7880bf58094338085bcf2a979a0e6a/Deprecated-1.2.14-py2.py3-none-any.whl.metadata
  Downloading Deprecated-1.2.14-py2.py3-none-any.whl.metadata (5.4 kB)
Collecting networkx~=2.1 (from tsplib95<0.8.0,>=0.7.1->python-tsp)
  Downloading networkx-2.8.8-py3-none-any.whl (2.0 MB)
     ---------------------------------------- 2.0/2.0 MB 8.6 MB/s eta 0:00:00
Requirement already satisfied: tabulate~=0.8.7 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from tsplib95<0.8.0,>=0.7.1->python-tsp) (0.8.10)
Requirement already satisfied: colorama in c:\users\bhmgerritsen\appdata\roaming\python\python310\site-packages (from Click>=6.0->tsplib95<0.8.0,>=0.7.1->python-tsp) (0.4.5)
Requirement already satisfied: wrapt<2,>=1.10 in c:\users\bhmgerritsen\appdata\local\anaconda3\envs\ti3111tu-2023_py311_test\lib\site-packages (from Deprecated~=1.2.9->tsplib95<0.8.0,>=0.7.1->python-tsp) (1.14.1)
Using cached Deprecated-1.2.14-py2.py3-none-any.whl (9.6 kB)
Installing collected packages: networkx, Deprecated, tsplib95, python-tsp
  Attempting uninstall: networkx
    Found existing installation: networkx 3.1
    Uninstalling networkx-3.1:
      Successfully uninstalled networkx-3.1
Successfully installed Deprecated-1.2.14 networkx-2.8.8 python-tsp-0.3.1 tsplib95-0.7.1

(ti3111tu-2023_py311_test) C:\Users\bhmgerritsen>