please add dataset's requirements to conda environment.yml/import wget failed for human mtg data

[shus2018]

tried to deploy latest datacube including new human mtg data using conda env today, failed to import wget, I was able to workaround, please add python module "wget" to environment.yml to avoid issue. Thanks.

[chrisbarber]

I thought I documented it somewhere but I guess I didn't: I've moved the requirements for data generation into scripts/requirements.txt. In theory the scripts should run with these requirements alone (doing a pip install --ignore-installed -r scripts/requirements.txt starting from a clean environment). It looks like I've had the Datacube Data bamboo plan set up to install from environment.yml first and then install from scripts/requirements.txt after that, which also works. The main thing is just to avoid polluting the production environment with packages that are only needed for data generation (allensdk is a good example of this, since it has caused deployment headaches in the past, and is only needed by the scripts).

[chrisbarber]

Okay, I modified the Datacube Data bamboo build plan to install from scripts/requirements.txt into a clean python 3 conda environment, rather than starting with environment.yml. This worked fine, so I would recommend doing the same. Not likely to be any harm in starting with an env based on environment.yml, but it is not necessary.