User-defined cache location¶
The location of the local storage cache in the users’ computer
is usually hard-coded when we call pooch.create.
There is no way for them to change it to something else.
To avoid being a tyrant, you can allow the user to define the cache location using an environment variable:
BRIAN = pooch.create(
# This is still the default
path=pooch.os_cache("plumbus"),
base_url="https://github.com/rick/plumbus/raw/{version}/data/",
version=version,
version_dev="master",
registry={
"c137.csv": "19uheidhlkjdwhoiwuhc0uhcwljchw9ochwochw89dcgw9dcgwc",
"cronen.csv": "1upodh2ioduhw9celdjhlfvhksgdwikdgcowjhcwoduchowjg8w",
},
# The name of an environment variable that can overwrite the path
env="PLUMBUS_DATA_DIR",
)
In this case, if the user defines the PLUMBUS_DATA_DIR environment
variable, Pooch use its value instead of path.
Pooch will still append the value of version to the path, so the value of
PLUMBUS_DATA_DIR should not include a version number.