# Other installation options ## Prerequisites - You installed [python 3.10 or newer](https://www.python.org/downloads/). - You installed [pip](https://pip.pypa.io/en/stable/installing/). - Optional, but it is **highly recommended** to use virtual environment for Python packages. > Create and activate it with following commands: > - Linux / MacOS: `python3 -m venv venv && source venv/bin/activate` > - Windows (cmd): `python -m venv venv && venv\Scripts\activate` ## Installation from OneTick pip server All recent `onetick-py` versions are now available on PyPI: [https://pypi.org/project/onetick-py/](https://pypi.org/project/onetick-py/). But in some cases, if you need some older or development versions, they can be installed from OneTick pip server. Ask your OneMarketData rep for a USERNAME and PASSWORD and run the command below: ```default pip install --index-url https://USERNAME:PASSWORD@pip.distribution.sol.onetick.com/simple/ "onetick-py[webapi]" ``` If you need to use proxy to reach external server, you need to specify it separately (replace [https://user_name:password@proxyname:port](https://user_name:password@proxyname:port) in the command with your proxy credentials): ```default pip install --index-url https://USERNAME:PASSWORD@pip.distribution.sol.onetick.com/simple/ --proxy https://user_name:password@proxyname:port "onetick-py[webapi]" ``` For MacOS, additionally run: `pip install "pyarrow<16"` ## Installation with strict dependencies The `onetick.py` depends on pandas, numpy and some other publicly available packages. Full list of requirements can be displayed like this: ```default pip show onetick-py ``` `onetick-py` doesn't depend on fixed versions of numpy and pandas, different versions are supported. But there is a set of versions that are used for testing, which can be installed with `strict` extra: ```default pip install "onetick-py[strict]" ``` ## Installation without internet connection If your machine will not be connected to the internet, you can download the wheel files from pip repository, and then distribute them to your machines: ```default pip download -d /path/to/wheel/files "onetick-py[webapi]" ``` Then you can install onetick-py with the following command: ```default pip install --no-index --find-links=/path/to/wheel/files "onetick-py[webapi]" ```