prerequisites. There are also step-by-step instructions available for
the following operating systems:
- * [Ubuntu 24.04](../appendix/Install-on-Ubuntu-24.md)
- * [Ubuntu 22.04](../appendix/Install-on-Ubuntu-22.md)
+ * [Ubuntu 24.04](Install-on-Ubuntu-24.md)
+ * [Ubuntu 22.04](Install-on-Ubuntu-22.md)
These OS-specific instructions can also be found in executable form
in the `vagrant/` directory.
Furthermore the following Python libraries are required:
- * [Psycopg2](https://www.psycopg.org) (2.7+)
+ * [Psycopg3](https://www.psycopg.org)
* [Python Dotenv](https://github.com/theskumar/python-dotenv)
* [psutil](https://github.com/giampaolo/psutil)
* [Jinja2](https://palletsprojects.com/p/jinja/)
- * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
- * one of
- * [psycopg3](https://www.psycopg.org)
- * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+)
* [PyICU](https://pypi.org/project/PyICU/)
* [PyYaml](https://pyyaml.org/) (5.1+)
* [datrie](https://github.com/pytries/datrie)
-These will be installed automatically, when using pip installation.
+These will be installed automatically when using pip installation.
When using legacy CMake-based installation:
For running the Python frontend:
+ * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
+ * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+, only when using SQLAlchemy < 2.0)
* one of the following web frameworks:
* [falcon](https://falconframework.org/) (3.0+)
* [starlette](https://www.starlette.io/)
To install Nominatim directly from the source tree into the virtual environment, run:
- /srv/nominatim-venv/bin/pip install packaging/nominatim-{core,db,api}
+ /srv/nominatim-venv/bin/pip install packaging/nominatim-{db,api}
#### Building in legacy CMake mode