Installation#

Requirements#

cygrid has the following strict requirements:

Installing cygrid#

Using Anaconda#

The easiest way to install cygrid is certainly to make use of the great Anaconda Python distribution:

conda install cygrid -c conda-forge

Using pip#

To install cygrid with pip, simply run

python -m pip install cygrid

Note

You may need a C++ compiler (e.g., g++) with OpenMP support to be installed for the installation to succeed, if no binary wheel is available for your OS and Python version on the Python Package Index

Note

Use the --no-deps flag if you already have dependency packages installed, since otherwise pip will sometimes try to “help” you by upgrading your installation, which may not always be desired.

Note

If you get a PermissionError this means that you do not have the required administrative access to install new packages to your Python installation. In this case you may consider using the --user option to install the package into your home directory, or even better work with virtual environments!

We recommend to use a Python distribution, such as Anaconda, especially, if you are on Installation on Windows.

Do not install cygrid or other third-party packages using sudo unless you are fully aware of the risks.

Installation from source#

There are two options, if you want to build cygrid from sources. Either, you install the tar-ball (*.tar.gz file) from PyPI and extract it to the directory of your choice, or, if you always want to stay up-to-date, clone the git repository:

git clone https://github.com/bwinkel/cygrid

Then go into the cygrid source directory and run:

python -m pip install .

Again, consider using virtual environments or even better use a python distribution such as Anaconda to avoid messing up the system-wide Python installation.

Installation on Windows#

Note that for Windows machines we provide binary wheels via PyPI and installation is as easy as with Linux:

python -m pip install cygrid

Note

If you are desperate, you can install cygrid from source even on Windows. You’ll need to install a suitable C-compiler; see here.

Installation on MacOS#

Installation on MacOS can be a bit tricky, because the standard C compiler does not support OpenMP. We provide wheels on PyPI, such that you can

python -m pip install cygrid

however, depending on the C++ compiler used on your system you may still get into trouble. We can’t provide support for this.

Testing an installed cygrid#

The easiest way to test if your installed version of cygrid is running correctly, is to use the test() function:

import cygrid
cygrid.test()

The tests should run and print out any failures, which you can report at the cygrid issue tracker.

Note

This way of running the tests may not work if you do it in the cygrid source distribution directory.

If you prefer testing on the command line and usually work with the source code, you can also do (outside of project directory)

python -m pytest --pyargs cygrid