I was excited to get going with Great Expectations on my M1 Mac, but it took me a while to work through some package dependencies that you need to compile yourself (most notably scipy and its numpy dependency). The following instructions worked for me™, if they work for you (or more importantly, if they don’t) please let us know in Slack.
These instructions come from looking through this StackOverflow post and this open GitHub issue; they cover how to install Great Expectations using pip.
Note: Be sure you are in a Python 3 virtual environment. In Linux or MacOS with Python3 installed, you can create a Python 3 virtual environment by:
Installing scipy
It is possible to install scipy using pip but you need to compile it yourself. This also applies to the numpy library dependency. To compile numpy, you require cython and pybind11
Then numpy can be compiled and installed (this takes a minute or two)
Once numpy is installed, you need to compile scipy itself, which depends on Fortran and BLAS/LACK. These packages can be installed with homebrew.
Then you will have to tell the installer where it can find the OpenBLAS library (please note: your path to homebrew may vary, look at the output from the homebrew install for the correct path)
Pythran is also needed for the scipy install to succeed
Finally compile and install scipy (this can take a few minutes):
Now you can install Great Expectations using pip:
