Microbial 'omics

Table of Contents

The latest version of anvi’o is v2.2.2. See the release notes.

This article explains basic steps of installing anvi’o using rather conventional methods.

Please post a comment down below if you have any questions about the installation. You may want to consider opening an issue for more technical problems.

A note on Chrome

Currently, the Chrome Web Browser has the most efficient SVG engine among all browsers we tested. For instance, Safari can run the anvi’o interactive interface, however it takes orders of magnitude more time and memory compared to Chrome. Firefox, on the other hand, doesn’t even bother drawing anything at all. Long story short, the anvi’o interactive interface will not perform optimally with anything but Chrome. So you need Chrome. Moreover, if Chrome is not your default browser, every time interactive interface pops up, you will need to copy-paste the address bar into a Chrome window. You can learn what is your default browser by running this command in your terminal:

python -c 'import webbrowser as w; w.open_new("http://")'

Painless installation with Homebrew

If you are using Mac and have Homebrew installed on your computer, all you need to do is to run this to have anvi’o installed on your system, and skip the rest of this page (although we suggest you to run brew doctor in your terminal first to make sure everything is good to go):

brew install homebrew/science/anvio

If you are installing anvi’o on another operating system (or if you an OS X user who does not like Homebrew for some reason) please continue reading.

Installation (with varying levels of pain)

First things first. You need to make sure your system does have all the following software if you are going to follow any of the following installation instructions. It is not as scary as it looks. If you just follow these links, you will most probably be golden:

Finally you will need virtualenv. This should work for most:

pip install virtualenv

Please note, since the version 2.2.0, anvi’o uses Python 3.

If you don’t have pip, you will need to visit this web page to get it installed.

If you run into any trouble, send an e-mail to Google Groups for anvi’o.

OK. If you are still here, you may have gone through the most painful part already. Anvi’o developers are very proud of you.

Installing the latest stable release (safe mode)

This is the best way to install the stable release. You will do everything in a Python virtual environment. If you are not experienced with computer stuff, do not worry. If you have taken care of your dependencies mentioned above, the rest is very simple.

We first need to create a new virtual environment for anvi’o. Since it is easier to keep all virtual environments in one place, I will first create a directory in my home:

mkdir ~/virtual-envs/

Then create a new virtual environment for anvi’o under that directory, to activate it, and to check the Python version in it:

virtualenv ~/virtual-envs/anvio-2.2.2
source ~/virtual-envs/anvio-2.2.2/bin/activate
python --version

The output of the last command must start with Python 3. If not, remove the virtual environment with rm -rf ~/virtual-envs/anvio, and find out how can you create a virtual environment for Python 3 on your system. You can try -p python3 as a parameter to your virtualenv command. Or you can type virtualenv and without pressing the space character press TAB key twice quickly to see if there is an alternative binary such as virtualenv-3.5 or virtualenv-3.5. If not, it means Python 3 is not installed on your system.

Make sure your paths look alright. Yours should look similar to this:

(anvio-2.2.2) meren ~ $ which pip

Now you can do the installation:

pip install numpy
pip install scipy
pip install cython
pip install anvio

If all looks good, now you should be able to run anvi-self-test:

anvi-self-test --suite mini

If this runs successfully, a browser window will popup. Don’t forget to go back to your terminal and press CTRL+C to kill the server. To leave the virtual environment, you can run the command deactivate.

Now every time you want to use anvi’o, you will need to activate the virtual environment. If you like things to be convenient as much as we do, you may want to run the following command so you have a new command, anvi-activate that activates your anvi’o installation:

echo 'alias anvi-activate-v2.2.2="source ~/virtual-envs/anvio-2.2.2/bin/activate"' >> ~/.bash_profile

When I open a new terminal, things look like this:

meren ~ $ anvi-interactive -v
-bash: anvi-interactive: command not found
meren ~ $ anvi-activate-v2.2.2
(anvio) meren ~ $ anvi-interactive -v
Anvi'o version ...............................: 2.2.2
Profile DB version ...........................: 20
Contigs DB version ...........................: 8
Pan DB version ...............................: 5
Samples information DB version ...............: 2
Genome data storage version ..................: 1
Auxiliary data storage version ...............: 3
Anvi'server users data storage version .......: 1
(anvio) meren ~ $ 

If you get an error from cherrypy when the interactive interface is run, or you see a “This site can’t be reached / refused to connect” error in your Chrome browser, please see this e-mail to fix it.

Installing or updating from the active codebase (because why not)

This will allow you to go beyond the stable version and follow the very current version of the codebase (we assume you already have taken of your dependencies).

Let’s setup a new virtual environment and activate it:

virtualenv ~/virtual-envs/anvio-dev
source ~/virtual-envs/anvio-dev/bin/activate
python --version

Don’t forget to make sure the output of the last command starts with Python 3.

I need to get the codebase

So this is your first time with the codebase. Get a fresh copy (with all the submodules necessary):

git clone --recursive https://github.com/meren/anvio.git

Then go into the anvio directory, and then run the installation:

cd anvio
source ~/virtual-envs/anvio-dev/bin/activate
pip install -r requirements.txt
python setup.py install

I already have the codebase

So you want to update your already existing installation. Follow these steps:

cd anvio
git pull
git submodule update --init --recursive
source ~/virtual-envs/anvio-dev/bin/activate
pip install -r requirements.txt
python setup.py install

What now?

Now it is time to run anvi-self-test --suite mini, of course.

If you want to make things simpler, you can add an alias to your ~/.bash_profile to easily switch to this environment:

echo 'alias anvi-activate-dev="source ~/virtual-envs/anvio-dev/bin/activate"' >> ~/.bash_profile

Installation for developers (you’re a wizard, arry)

If you are planning to do this, you really need no introductions, but I will give you one anyway. Clone the codebase into a $DIR you like:

cd $DIR
git clone --recursive https://github.com/meren/anvio.git

Create a virtual environment (master to remind you that you are following the GitHub master), and do the initial setup, and leave it:

virtualenv ~/virtual-envs/anvio-master
source ~/virtual-envs/anvio-master/bin/activate
python --version # make sure the output starts with `Python 3`.
cd $DIR/anvio # don't forget to update the $DIR with the real path
pip install -r requirements.txt
python setup.py build
cp build/lib.*/anvio/*so anvio/
rm -rf anvio.egg-info build dist

Then update your activation batch to add necessary environment variables (keep in mind that you need to update the $DIR variable with whatever it shows in your system):

echo 'export PYTHONPATH=$PYTHONPATH:$DIR/anvio/' >> ~/virtual-envs/anvio-master/bin/activate
echo 'export PATH=$PATH:$DIR/anvio/bin:$DIR/anvio/sandbox' >> ~/virtual-envs/anvio-master/bin/activate

That’s it. If you like, add an alias to your ~/.bash_profile to activate this quickly:

echo 'alias anvi-activate-master="source ~/virtual-envs/anvio-master/bin/activate"' >> ~/.bash_profile
source ~/.bash_profile

Finally, if you would like to pull the latest commits from GitHub every time you switch to the master, add these to your activation batch (you will need to update $DIR once again):

echo 'cd $DIR && git pull && cd -' >> ~/virtual-envs/anvio-master/bin/activate

You are golden.

Running the “Mini Test”

You can make anvi’o test itself by running the program anvi-self-test.

Upon the successful completion of all the tests, your browser should popup to take you to the interactive interface. When you click that ‘Draw’ button, you should see something like this (this is one of the older version of the anvi’o interactive interface, and it shall stay here so we remember where we came from):

All fine? Perfect! Now you have a running installation of anvi’o!

It is time to go through the tutorial, or take a look at all the other posts on the platform.