What are dronekit-python dependencies? - dronekit-python

The dronekit Getting Started page suggests installing WinPython to use dronekit-Python on Windows because it includes the dependencies. I already have a working Python installation and I prefer not to risk messing it up with WinPython. What are the dependencies I need to install?

As of DKPY 2.0 this is outdated. Also, I might move to making a MavProxy module depending on whether or not the unpaid devs decide to stay when 3DR stops funding Dronekit
I've written a procedure to help with this problem which I've pasted. 3DR claims they're going to fix it, but in the mean time I hope this will help.
This setup is for Windows 64-bit systems only, although similar procedures will work with 32-bit.
Install MAVProxy and run it once before reaching step 5.
Install Notepad++.
Install Python v2.7.
Inside the Python folder, run WinPython Control Panel and select Advanced->Register Python.
Inside the same folder, run WinPython Command Prompt and input the following four commands:
• pip uninstall python-dateutil
• pip install droneapi
• pip install console
• echo module load droneapi.module.api >> %HOMEPATH%\AppData\Local\MAVProxy\mavinit.scr
Install WX Python. It should be the 64-bit Python 2.7 version.
Download and install OpenCV 2.4.11 to any folder
• Copy/paste the file cv2.pyd from OpenCV\build\python\2.7\x64\ to \python-2.7.6.amd64\Lib\site-packages.
Steps 8 through 11 apply to SITL only
Follow the online documentation for setting up Cygwin for SITL in Windows
Go to C:\cygwin\home\Your Username\ardupilot\Tools\autotest\
Open sim_vehicle.sh in Notepad++
• Change line 429 from…
cygstart -w "/cygdrive/c/Program Files (x86)/MAVProxy/mavproxy.exe" $options --cmd="$extra_cmd" $*
to...
cygstart -w "/cygdrive/c/Users/YOUR USERNAME HERE/Desktop/WinPython-64bit-2.7.6.4/python-2.7.6.amd64/Dronekit/Scripts/mavproxy.py" $options --cmd="$extra_cmd" $*
Note: This location changes depending on where you installed WinPython. For me, it was the desktop.
Start simulations as you would normally for SITL. To run Python scripts during the simulations, use the command
• api start Path to script\script_name
To use the code to connect to an actual copter, open WinPython Command Prompt
• Navigate to the folder which contains the scripts you wish to test
• Type mavproxy.py --master=”com##”,57600
• Run your script by typing into the MAVProxy terminal
o api start script_name

Related

VOLTTRON install on rasbian buster

Can I get a tip for installing on rasp buster? Im hung up on the install directions to check the status of the rabbitMQ server. Traceback of bash console:
(volttron) pi#raspberry:~/Desktop/volttron $ echo 'export RABBITMQ_HOME=$HOME/rabbitmq_server/rabbitmq_server-3.7.7'|sudo tee --append ~/.bashrc
export RABBITMQ_HOME=$HOME/rabbitmq_server/rabbitmq_server-3.7.7
(volttron) pi#raspberry:~/Desktop/volttron $ source ~/.bashrc
pi#raspberry:~/Desktop/volttron $ RABBITMQ_HOME/sbin/rabbitmqctl status
bash: RABBITMQ_HOME/sbin/rabbitmqctl: No such file or directory
There are a few tracebacks earlier on the installation...
If it makes a difference or not here is the entire bash console process. The git gist link I just created the name install.py even though its just bash commands copied pasted per install directions...
`pi#raspberry:~/Desktop $ git clone https://github.com/VOLTTRON/volttron --branch releases/7.x`
It looks like there are a couple of different issues going on here:
The issue you quote above (RABBITMQ_HOME/sbin/rabbitmqctl: No such file or directory) is that your shell isn't finding the rabbitmqctl command. It looks like you added the RABBITMQ_HOME environment variable to your .bashrc, but used the string RABBITMQ_HOME instead of the variable expansion $RABBITMQ_HOME when you tried to run the command. Try running it as $RABBITMQ_HOME/sbin/rabbitmqctl status instead.
The rabbitmqctl status command will check the status of the rabbitmq application, but I don't think you've done anything to start it yet (that happens when you bootstrap the platform and/or start the platform configured to use the RMQ broker)
I think that the traces earlier in the installation process are problematic (appears to be the same error hit two different ways), but you just haven't run into them yet. I haven't seen any issues building gevent on the RPi 4 with buster (though it is pretty slow), but the ctypes error makes me wonder if there's an issue with the underlying c library it is trying to build on top of. I did notice that you're getting amd64 erlang packages, are you running Raspbian on an x86 processor? (if so this isn't a permutation we've tried and you may be hitting some package compatibility edge case we haven't seen)
One thing to try is to manually install cython into your virtualenvironment and then try running the bootstrap script again with the virtualenvironment activated. You could also try and pip install gevent==20.6.1 directly in that virtualenvironment (this is what the bootstrap script was doing at the failure point). VOLTTRON depends on gevent, so if that isn't installing the platform won't be able to run.

che.openshift.io - Run the terminal as SUDO

I am using the che.openshift.io - Eclipse Che from Red Hat. I have a workspace of PHP Laravel Stack. When I try to run commands as SUDO from the php terminal I am getting error.
SUDO - not a command /
SU - must be run from a terminal
Can someone help me to run as root user? I have to install the heroku CLI from the terminal which can be done only via root user.
In general, containers running as root is a significant security risk + containers are supposed to be immutable and installing anything inside the container is not recommended since after the restart all the packages will vanish.
Eclipse Che workspaces on che.openshift.io are running against Red Hat OpenShift Online clusters which do not support sudo and workspace containers are running using the Arbitrary User IDs (This provides additional security against processes escaping the container due to a container engine vulnerability and thereby achieving escalated permissions on the host node). So, Basically you can not execute sudo from the workspace terminal.
I have to install the heroku CLI from the terminal which can be done only via root user.
In order to support the Heroku CLI from the terminal you have 2 options:
Create your own custom php image with the Heroku CLI installed based on the default php image used in Eclipse Che - https://github.com/eclipse/che-dockerfiles/blob/master/recipes/php/7.1/Dockerfile (and then refer to this image from the custom devfile that will feet your needs)
Eclipse Che support vscode extensions and you can contribute support of the heroku-cli to the che-plugin-registry
Hope this helps.

ModuleNotFoundError in Spyder

I tried to import the biopython package in Spyder and got the error message:
ModuleNotFoundError: No module named 'biopython'
although biopython is installed.
I also checked the PYTHONPATH: there is a path set into the directory where the packages are stored.
Can somebody help? Did I miss something? Thanks for your help!
If you're using Anaconda, it's best to install all the packages you want from Anaconda if possible. You can check if a package is available with (e.g.):
conda search biopython
When I try that command it shows that biopython is available, so assuming you have access to the standard conda channels you should be able to get it this way.
Assuming you haven't already created a conda environment to work with, start by creating a new one with the packages you want to use:
conda create -n myenvname spyder biopython
where myenvname is the name you want to give the environment - call it whatever you like. If you want to use other packages as well, add their names to the end of this command. Then once the env is completed, activate it:
activate myenvname
or if this doesn't work, on Mac or Linux:
source activate myenvname
and start Spyder in this environment:
spyder
Each time you want to use this environment in future you will need to activate it first. You may also be able to do some of these tasks through the Anaconda Navigator or via Start menu shortcuts but the command line version will always work.
If there's a package you want that isn't available from conda but is available via pip, just use the pip command after creating and activating the environment.
If you are using Anaconda, a solution could be
conda install -c main biopython
following https://anaconda.org/main/biopython.
The official repository page helped me when I got your error message because numpy was not in place.

Where does sdkman install packages?

I used sdkman to install groovy which went fine. Where is the installed package now? I need the path for it. I am on Ubuntu 14.04.
I've checked it on my system. It should be located in $HOME/.sdkman/candidates/.
I think the best way would be to use SDKMan's home command:
https://sdkman.io/usage#home
Something like this (taken from the above page):
$ sdk home java 11.0.7.hs-adpt
/home/somedude/.sdkman/candidates/java/11.0.7.hs-adpt
Upon installation, SDKMAN creates an environment variable $SDKMAN_DIR which points to the installation directory.
Usuall it's ~/.sdkman
After you have run source $HOME/.sdkman/bin/sdkman-init.sh.
You can see the sdkman "installation" by running:
declare -f
$HOME on mac is /Users/<users>
Where's SDKMan installed:
echo #SDKMAN_DIR
Where did it just install gradle? (or some other package)
which gradle
SDKMAN stores file in $HOME/.sdkman/candidates/ as Tom mentioned and this answer goes into more detail.
To find where SBT 1.3.13 is installed, type sdk home sbt 1.3.13. It'll return something like /Users/powers/.sdkman/candidates/sbt/1.3.13.
The arguments to the sdk install command align with where the files are stored in $HOME/.sdkman/candidates.
sdk install java 8.0.272.hs-adpt stores files in $HOME/.sdkman/candidates/java/8.0.272.hs-adpt.
sdk install sbt 1.3.13 stores files in $HOME/.sdkman/candidates/sbt/1.3.13.
When you run sdk install, the downloaded binaries get saved in $HOME/.sdkman/archives. For example, $HOME/.sdkman/archives/java-8.0.272.hs-adpt.zip and $HOME/.sdkman/archives/sbt-1.3.13.zip.
Some of the binaries are pretty big and can end up taking a lot of space on your computer. You should periodically delete them with the sdk flush archives command. Once you install the software, you don't need the binaries anymore. See here for more details.

Install Packages (for dummies)

I know there's a lot of information on here about installing python packages, but I'm quite new to python and I think I need a more "for dummies" level of help.
I was trying to install openpyxl for which as far as I can tell I need easy_install, for which, as far as I can tell, I need setuptools. I tried running the code provided here https://pypi.python.org/pypi/setuptools which is supposed to download and install setuptools (and according to some sites, easy_install aswell?) - it runs successfully, but help(modules) doesn't show setuptools or easy_install as modules, I have no idea whats installed and what isn't, or how I'm supposed to install any of it!
Essentially I'm very confused, very frustrated and really need someone to talk me through (in idiot-speak) what I'm supposed to do.
Thankyou!
We all start somewhere, I was there two weeks ago.
I'll assume you're using Python2. I believe Distribute and Pip are recommended for Python3 (which I will be using as examples). I will also assume you are on Windows.
First, python needs to be registered to Path. To check if this has been done automatically, open a command prompt (start -> programs -> accessories), and type 'python', then enter. If it returns the version number, etc, skip down a bit. If it throws an error, you need to add Python to Path.
Adding Python to Path
To add Python to Path on a Windows computer, go to:
Control Panel -> System -> Advanced Settings -> Environment Settings -> System Variables
Scroll down to select path, then click edit. Copy the entire line to a text document, and add your install directory for Python.exe (and the scripts folder) using ';' as a delimiter between different directories. Copy this back to Path and save. (Additionally close your command prompt window to reset it.)
For my Windows 7 machine, I added:
;C:\Python33;C:\Python33\scripts;
Take care when editing this file. There are many videos out there describing this in detail if you feel unsure about changing this.
Installing Modules (Such as setup_tools)
Once Python is registered in the Path file, download and unzip setup_tools to a folder within your Python install directory called 'modules'. I use ExtractNow to unzip, as it will unzip twice (as required) automatically.
Open a command prompt window again, and direct it to change directories by typing
cd [directory for module you want to install]
On my computer, this would be
cd C:\Python33\modules\distribute-0.6.40
Again, I use distribute, rather than setup_tools as it sounds like you need would for Python2. Simply use the appropriate directory. Press enter to change the directory.
Once you've entered this and it shows a changed directory, type:
python setup.py install
This indicates that you want to use the program python to use the setup.py file in the specified folder to install the module. This should be successful, and will write many lines of code.
If you want to install other modules, you would install them in a similar way. Python would automatically use setup_tools on your computer to finish each install.
Remember to import at the start of your script when using them to code:
import [module]
Happy Programming!

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