How to install openGauss on a Python 3.7 environment - open-gauss

when I install openGauss on a python3.7 environment, it reminds me the python version is not support, so how can I do?

Following this step
open the gspylib/common/CheckPythonVersion.py file
change if not pythonVersion = (3, 6): to if not pythonVersion > = (3, 6):
type the "ESC" key to enter the instruction mode, execute: wq save and exit the modification.

If you are trying to install openGauss on a Python 3.7 environment, you will need to downgrade your Python version to a supported version. You can find instructions on how to downgrade your Python version on the OpenGauss website. Additionally, you may need to install additional packages or libraries to ensure that openGauss is compatible with your Python version.

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How can I install orion-ml?

The recommended method for installing orion-ml is via pip (e.g., pip install orion-ml) as stated in the github README.md
However, this simple command causes the error
INFO: pip is looking at multiple versions of baytune to determine which version is
compatible with other requirements. This could take a while.
Collecting baytune<0.3,>=0.2.3
Using cached baytune-0.2.4-py2.py3-none-any.whl (27 kB)
Using cached baytune-0.2.3-py2.py3-none-any.whl (27 kB)
INFO: pip is looking at multiple versions of mlblocks to determine which version is
compatible with other requirements. This could take a while.
INFO: This is taking longer than usual. You might need to provide the dependency resolver
with stricter constraints to reduce runtime. If you want to abort this run, you can press
Ctrl + C to do so. To improve how pip performs, tell us what happened here:
https://pip.pypa.io/surveys/backtracking
INFO: pip is looking at multiple versions of <Python from Requires-Python> to determine
which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of orion-ml to determine which version is
compatible with other requirements. This could take a while.
ERROR: Cannot install orion-ml because these package versions have conflicting dependencies.
The conflict is caused by:
mlprimitives 0.2.4 depends on tensorflow<2 and >=1.11.0
mlprimitives 0.2.3 depends on tensorflow<2 and >=1.11.0
mlprimitives 0.2.2 depends on tensorflow<2 and >=1.11.0
To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict
ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/user_guide/#fixing-conflicting-dependencies
This tells us there is a version conflict. How can I resolve this? Thank you
I ran into the same issue and found out that orion-ml only worked with Python >=3.6, <3.8, but I had Python 3.9.2 installed which ended up pullig orion-ml 0.1.0 which is a very old version. I uninstalled 3.9.2 and installed a version under Python 3.8 and it worked
Install Anaconda:
https://www.anaconda.com/products/individual#download-section
Create a virtual environment with python version 3.7.(3.8.8 python makes an error installing "pip install orion-ml")
Run your python 3.7 virtual env.
pip install orion-ml : There's no error install "orion-ml" package.
Create a separate conda environment like:
conda create --name orion python=3.7 # or 3.6
conda activate orion
and then install tensorflow using:
pip install https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-1.8.0-py3-none-any.whl
This will get you rid of the tensroflow error.

How can i download paho and pip on my Windows 10

I am currently programming in IronPython 2.7 and would like to integrate Paho.
Since I became IronPython 2.7, I have to download Python 2 and not Python 3.
when I get the command
pip install paho-mqtt
heard in my Windows 10 terminal
what error message appears:
DEPRECATION: Python 2.7 reached the end of its life on January 1, 2020. Please update your Python as Python 2.7 is no longer maintained. pip 21.0 will end support for Python 2.7 in January 2021. Further information on Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2- support
Requirement already fulfilled: paho-mqtt in c: \ python27 \ lib \ site-packages (1.5.0)
has an idea what I have to do?
Python you are using must be below the minimum supported version of for Python 2, and that's why you get the error.
Paho-MQTT does not work with Python versions below 2.7.9, according to their
documentation.
Try this:
Delete your current Python.
Install the newest python from their website, install it on PATH.
Verify that your installation was successful with cmd -> python (should show your version, i.e Python 3.8.3)
Install your package with cmd -> pip install paho-mqtt

Why anaconda3 install python 2.7

I downloaded and installed Anaconda3-2019.03-MacOSX-x86_64.pkg which should normally install python 3.7. But oddly this is not the case :
(base) iMac-de-Bibi:~ ac$ which python
/Users/ac/anaconda3/bin/python
(base) iMac-de-Bibi:~ ac$ /Users/ac/anaconda3/bin/python --version
Python 2.7.16 :: Anaconda, Inc
Any help would be appreciated
Note : it's my first anaconda installation on this machine
You might have mistakenly downloaded and installed the wrong Anaconda distribution.
You might have changed the Python version in the base environment after the initial installation, by doing something like this:
conda activate base
conda install python=2.7
Update: As reported in a comment, installing pyside downgrades Python.
Have you correctly activated the base environment, and not messed with PATH or PYTHONPATH? I'm not sure about it, but python might be a script that calls the actual Python interpreter. It could pick the wrong one if search paths are off.
In general, I recommend to install Miniconda and create custom environments. Then you can choose whichever Python version you want for each environment, and don't care which one is in the base environment.

zipline installation from Quantopian modifies Anaconda

I am working with Anaconda with python 2.7. In order to do algorithmic trading I wanted to install 'zipline' package using conda giving command as
conda install -c Quantopian Zipline
from Anaconda prompt. After 'Solving environment' message, I got 'Package Plan' which contains packages which will be installed, removed, updated and downgraded. I was astonished to see that it will remove 'anaconda: 5.2.0-py27_3' and downgrade
networkx: 2.1-py27_0 to 1.11-py27_1;
numpy: 1.14.3-py27h911edcf_1 to 1.11.3-py27hc42714f_10;
numpy-base: 1.14.3-py27h917549b_1 to 1.11.3-py27h2753ae9_10;
pandas: 0.23.0-py27h39f3610_0 to 0.22.0-py27hc56fc5f_0.
I canceled the installation.
I have a couple of question here.
Why at all it is necessary for any package installation to remove package 'Anaconda' and downgrade packages like 'numpy', 'pandas' etc.?
Will this action not jeopardize my other python activities?
Shall I go ahead or restrain from installing the packages like this?
Zipline doesn't currently support the latest versions of packages like panda, numpy etc. which causes the messages above.
Well, yes it could make trouble, especially if your other python activities need the latest version of those packages.
Please don't go ahead with the installation like this. I'll explain the best available solution below.
Solution:
Create an environment for Zipline. Let's say (for convenience only) Zipline supports Python 3.5 but you have only installed Python 2.7 on your machine.
So you can create a sandbox-like conda-environment for Python 3.5. It's very straight forward, just use the following commands:
$ conda create -n env_zipline python=3.5
After your isolated environment called env_zipline was created, you have to activated it by using the following command:
$ activate env_zipline
You can install Zipline now by running
(env_zipline)$ conda install -c Quantopian zipline
When you finished your work with zipline you can deactivate the environment for zipline by using the following command:
(env_zipline)$ deactivate
Hope it helps. If your need further information you can check the more detailed documentation of zipline (the steps above are included):
http://www.zipline.io/install.html

Installing python-igraph for python 3.6 on Windows

I want to install the python-igraph package, but I am currently using python 3.6.1 and I don't find any installer for this new version of python. Do you know how can I install python-igraph for this version?
I have tried to install python-igraph for older versions from anaconda cloud but a version problem occurs.
!conda install -c vtraag python-igraph
Fetching package metadata .............
Solving package specifications: .
UnsatisfiableError: The following specifications were found to be in conflict:
- python 3.6*
- python-igraph -> python 3.5*
Use "conda info <package>" to see the dependencies for each package.`
I know that python-igraph exists for older python versions, but I don't want to overwrite the current python 3.6 version, so I think I need a new environment to install the older version and be able to use both.
I have already tried to create a new environment for python 3.5:
!conda create -n py35 python=3.5 ipykernel
But after 30min I didn't obtain any response...
I have also followed the same procedure to install a package for python 2.7 (from marufr contributor), but I get the same problem creating an environment for python 2.7.
Note: I am working from Jupyter notebook on Windows (win-64) and using Anaconda.
Update:
Solution found here:
https://medium.com/towards-data-science/environment-management-with-conda-python-2-3-b9961a8a5097
Since there is no python-igraph for python 3.6 yet, I have to use an older version.
First, from Anaconda Prompt, install the nb_conda_kernels package before creating the new environment:
conda install nb_conda_kernels
Then, create the environment where I will work with the older python version:
conda create -n py35 python=3.5 ipykernel
Finally, install the package through the wheel (found here: http://www.lfd.uci.edu/~gohlke/pythonlibs/#python-igraph)
pip install python_igraph‑0.7.1.post6‑cp35‑none‑win_amd64.whl (You have to this command in the same folder that you donwloaded the wheel!)
There is a Windows installer for igraph‘s Python interface on the Python Package Index. Download the one that is suitable for your Python version (currently there are binary packages for Python 2.6, Python 2.7 and Python 3.2, though it might change in the future). To test the installed package, launch your favourite Python IDE and type the following:
import igraph.test
igraph.test.run_tests()
The above commands run the bundled test cases to ensure that everything is fine with your igraph installation.
Now, you can download 'python_geohash‑0.8.5‑cp36‑cp36m‑win_amd64.whl'.
Use the following command to install:
pip install python_geohash‑0.8.5‑cp36‑cp36m‑win_amd64.whl
Then you can use python-igraph in your Python3.6

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