Developer Installation¶
To develop new code for CCL, you need to install it using pip’s development
install. This installation method creates a symbolic link between your Python
site-packages directory and the copy of CCL you are working on locally. Thus
when you change CCL Python code, you do not need to reinstall CCL in order
for the changes to be visible system-wide. Note, if you change the CCL C
code, you will need to force CCL to recompile the code (and copy the resulting
.so into the Python package) by rerunning the command below.
To install CCL using a pip developer installation, you can execute
$ pip install -e .
from the top-level directory in the repository. You will need CMake in
order to install CCL in this way. See Getting CMake for help installing
CMake if you do not already have it. In order to run the tests,
you will need both CAMB and CLASS installed. See the instructions for
Getting a Boltzmann Code for details.
C-layer Dependencies and Requirements¶
CCL has several C dependencies. The CMake build will download and
compile these automatically if they are not present on your system. However,
if you do have them installed locally in a spot accessible to CMake, the
local versions will be used.
These dependencies are
Uninstalling CCL in Developer Mode¶
To uninstall CCL in developer mode, simply type
$ pip uninstall pyccl