The following details the tools needed to contribute to the development of Pyrseas. If you have any doubts or questions, please open an issue on GitHub (https://github.com/perseas/Pyrseas/issues). In addition, see Version Control below on how to set up a GitHub account to participate in development.
To install Git, either download and install the latest stable release for your platform or follow the Pro Git installation instructions. For most Linux users, apt-get or yum (depending on Linux flavor) will be the simplest means to install the git-core package. For Windows, downloading the installer and selecting Git Bash gives you not only Git but a Bash shell, which is handy if you're coming from a Linux/Unix background.
Once Git is installed, change to a suitable directory and clone the master repository:
git clone git://github.com/perseas/Pyrseas.git
git clone https://github.com/perseas/Pyrseas.git
To be able to create a fork on GitHub, open an issue or participate in Pyrseas development, you'll first have to create a GitHub account.
To contribute to Pyrseas, you need at least one version of Python. You can develop using Python 3, but since we will continue supporting Python 2 until its end-of-life, you can also install Python 2.7 in addition to Python 3.7 or 3.6.
If Python is not already available on your machine, either download and install one or both of the production releases for your platform, follow the applicable installation instructions given in The Hitchhiker’s Guide to Python! or install it from your platform's package management system.
To participate in Pyrseas development, you'll also need one or more installations of Postgres, versions 11, 10, 9.6, 9.5 or 9.4. If you only have limited space, it is preferable to install one of the latest two versions.
The versions can be obtained as binary packages or installers from the Postgres.org website. The site also includes instructions for installing from package management systems or building it from source.
To access Postgres from Python, you have to install the Psycopg adapter. You can either follow the instructions in Psycopg's site, or install it from your package management system. Note that if you install both Python 2 and 3, you will have to install two packages, e.g., python-psycopg2 and python3-psycopg2.
Other Libraries and Tools
The dbtoyaml and yamltodb utilities use the PyYAML library. You can install it from the PyYAML site, or possibly from your package management system. For Windows 64-bit, please read the note under installer.