Go directly to rasterio.DatasetReader instead of rasterio.open #1008
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rasterio.open
tries to be smart about environment setup even if user didn'tactivate environment, it also deals with ro vs rw modes. Since we always open in
ro mode and always activate credentialed environment we can skip directly to
DatasetReader class and avoid credentialization bugs in rasterio.
Reason for this pull request
major slow-down in sandbox are caused by rasterio misguided attempts at credentialization on every file open even when public reads are enabled.
GeoscienceAustralia/dea-sandbox#121
docs/about/whats_new.rst
for all changes