Twisted setup in Fedora or CentOS - linux

Is there a source tarball of Twisted available for download which could be used to build it in Fedora or CentOS? I see the download for Ubuntu/Debian on the site, of course.

It would be an 'rpm'; Try rpmfind [.net]
https://www.rpmfind.net/linux/RPM/fedora/secondary/devel/rawhide/src/p/python-twisted-15.4.0-3.fc24.src.html

To get the latest version of Twisted requires Python 2.7+ because 2.6 support has finally been EOL. So if you're running an old Python, then I'd suggest you build your own Python 2.7+ and alt install it. It's very important you don't override CentOS's default Python as this could lead to a disastrous situation. Once Python is updated, then you can do pip install twisted. Alternatively, you could get a yum repo with a updated versions of Python and Twisted.

You can use python pip to install twisted in centos or fedora.
Make sure you have python-pip installed then just do sudo pip install twisted in terminal

Related

how to install python 3.9.6 using homebrew on Mac m1

Im new to programming and stuff and was looking to install python 3.9.6 using home-brew. To do that would I just have to type in brew install python#3.9 into the terminal, or is there some other way? Thanks!
You can't ensure a specific version 3.9.6 with brew package python#3.9. Homebrew is a package manage designed to get latest pacakge. python#3.9 will be kept updating to the latest patch version 3.9.x.
If you REALLY to stick with specific python version, choose conda (miniconda is preferred) or pyenv.

How to install libdoc2testbench on Ubuntu

libdoc2testbench is a tool of Robot Framework which supports importing test results to imbus testbench. Due to Robot Framework documentation, it is to be installed by
pip install robotframework-libdoc2testbench
I want to install it on Ubuntu 18.04; there I get the error:
Could not find a version that satisfies the requirement robotframework-libdoc2testbench (from versions: )
No matching distribution found for robotframework-libdoc2testbench
Best regards
Gerhard
You are probably calling pip from Python 2.7.
Make sure you use Python 3, for example with:
python3 -m pip install robotframework-libdoc2testbench
EDIT: You can download the .wheel or source tar from pypi.org and install with pip pointing to it (and then if needed, download other required packages).
However the solution to your problem is the Python version. From the project page, we see it needs Python 3.7.

How to install tensorflow 1.15.0 in Ubuntu server 18.04

I am using Azure to create an Ubuntu server 18.04. The python3 default version in this VM is 3.6.9. I tried to install python3-pip, then install Tensorflow version 1.15.0 by command: sudo pip3 install Tensorflow==1.15.0.
However I got this error: No matching distribution found for tensorflow==1.15.0
I really don't know how to fix it. On my Windows PC, I got the same error while using python3.7, then I change to use python3.6.5 and everythings is fine. So that I think maybe I should try to install python 3.6.5 on Ubuntu VM. But again, this time, I can't install correctly python 3.6.5 on my Ubuntu server.
Can you please help me to fix it. I am just a newbie and honestly, I am not really good with Ubuntu.
Thank you so much.
I had the same issue.
A simple upgrade of pip to the latest version by:
sudo -H pip3 install --upgrade pip
sudo -H pip2 install --upgrade pip
solved the problem for me. Checkout https://askubuntu.com/questions/712339/how-to-upgrade-pip-to-latest for details how to upgrade pip.
After checking it seems the pip3 version shipped with Ubuntu defaults to pip 9.0.1. However, this version seems to supports only up to Tensorflow 1.14.
I would also strongly suggest to use virtual environments like Anaconda in order not to mess up your system python.
E.g.: https://docs.anaconda.com/anaconda/install/linux/
These are the list of files for TensorFlow 1.15
This command would work:
pip3 install tensorflow==1.15.0
I do see the manylinux wheel file for Ubuntu.
What CPU model and pip version are you using?
Debugging:
pip3 -v install tensorflow==1.15.0 | grep Found | more
Can help you see which platform and tags pip3 is trying to find in wheel files.
In the past I also have seen issue with pip default version (9.0.1), make sure you are running a recent version (e.g. pip-20.0.2):
apt install python3-pip && pip3 install --upgrade pip

How to update OpenCV 3.4.2 to OpenCV 4 or latest stable version?

I have installed OpenCV 3.4.2 successfully by following the tutorial given here:
https://www.pyimagesearch.com/2015/07/20/install-opencv-3-0-and-python-3-4-on-ubuntu/
Now, I would like to update to openCV 4 or the latest stable version.
Do I need to uninstall 3.4.2 first?
If so, how should I uninstall it.
I am afraid to creating another virtual environment and installing version 4 or master package from github by following the same steps might create conflicts. Please advice.
Working on Ubuntu 16.04 LTS, python 3.5
For Python interface, I guess you can try something like pip install opencv-python==4.0.0.21. Note, you might need to run pip3 install opencv-python==4.0.0.21 depending upon your pip version.

How to install Pillow on Python 3.5?

As the title suggested I have trouble installing Pillow on Python 3.5.2. I believe I already have pip and easyinstall preinstalled. I have viewed some tutorials and attempted to type '>$pip install Pillow' into the IDLE shell but it came back with a syntax error. I am new to programming and have no prior IT exprience so please be specific and put it in simple terms. My OS is Windows 10. Thanks.
sudo pip3 install Pillow - unix-style
pip install Pillow - windows
http://pillow.readthedocs.io/en/3.1.x/installation.html
Installing stuff on ms-windows is such a can of worms that it is probably easiest to use a specialized Python distribution for ms-windows, like Anaconda or Enghought. These come with a lot of packages pre-installed, and have their own package managers to make adding more stuff easier for you.
sudo pip3 install Pillow==5.0.0
This will saves you
Use pip install Pillow. It worked for me
try typing pip in the command line maybe you didn't install pip properly
if you didn't then go to here to install pip

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