The rasterio dependency is now optional.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>

.gitlab-ci.yml

@@ -66,7 +66,7 @@ test_py_tools_ds_install:
     - conda config --set channel_priority strict  # otherwise gdal or libgdal may be installed from defaults channel
 
     # resolve some requirements with conda
-    - conda install --yes -q -c conda-forge numpy gdal pyproj rasterio shapely geopandas
+    - conda install --yes -q -c conda-forge numpy gdal pyproj shapely geopandas
 
     # run installer
     - python setup.py install

README.rst

@@ -62,7 +62,7 @@ Using conda_, the recommended approach is:
     # create virtual environment for py_tools_ds, this is optional
     conda create -y -q --name py_tools_ds python=3
     source activate py_tools_ds
-    conda install -c conda-forge numpy gdal pyproj rasterio shapely pandas
+    conda install -c conda-forge numpy gdal pyproj shapely pandas
 
  Then install py_tools_ds using the pip installer:
 

conda_recipe/meta.yaml

@@ -24,7 +24,6 @@ requirements:
     - python
     - numpy
     - gdal
-    - rasterio
     - pyproj
     - geopandas
     - six

py_tools_ds/geo/raster/reproject.py

@@ -24,6 +24,7 @@
 import numpy as np
 import warnings
 import multiprocessing
+from pkgutil import find_loader
 
 # custom
 try:
@@ -44,7 +45,7 @@ from ...compatibility.gdal import get_gdal_func
 __author__ = "Daniel Scheffler"
 
 
-def warp_ndarray_OLD(ndarray, in_gt, in_prj, out_prj, out_gt=None, outRowsCols=None, outUL=None, out_res=None,
+def warp_ndarray_rasterio(ndarray, in_gt, in_prj, out_prj, out_gt=None, outRowsCols=None, outUL=None, out_res=None,
                           out_extent=None, out_dtype=None, rsp_alg=0, in_nodata=None, out_nodata=None,
                           outExtent_within=True):  # pragma: no cover
     """Reproject / warp a numpy array with given geo information to target coordinate system.
@@ -71,6 +72,11 @@ def warp_ndarray_OLD(ndarray, in_gt, in_prj, out_prj, out_gt=None, outRowsCols=N
     :return out_gt:             warped gdal GeoTransform
     :return out_prj:            warped projection as WKT string
     """
+
+    if not find_loader('rasterio'):
+        raise ImportError('This function requires rasterio. You need to install it manually '
+                          '(conda install -c conda-forge rasterio). It is not automatically installed.')
+
     # NOTE: rasterio seems to increase the number of objects with static TLS
     #       There is a maximum number and if this is exceeded an ImportError is raised:
     #       ImportError: dlopen: cannot load any more object with static TLS

requirements.txt

@@ -3,7 +3,6 @@ kealib  # fix for libkea.so.1.4.7: cannot open shared object file: No such file
 numpy
 shapely
 six
-rasterio
 pandas
 geopandas
 pyproj

setup.py

@@ -36,7 +36,7 @@ version = {}
 with open("py_tools_ds/version.py") as version_file:
     exec(version_file.read(), version)
 
-requirements = ['gdal', 'numpy', 'shapely', 'six', 'rasterio', 'pandas', 'geopandas', 'pyproj', 'spectral']
+requirements = ['gdal', 'numpy', 'shapely', 'six', 'pandas', 'geopandas', 'pyproj', 'spectral']
 setup_requirements = []  # TODO(danschef): put setup requirements (distutils extensions, etc.) here
 test_requirements = requirements + ["coverage", "nose", "nose2", "nose-htmloutput", "rednose"]
 
@@ -68,8 +68,10 @@ setup(
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
     ],
     test_suite='tests',
     tests_require=test_requirements,
-    setup_requires=setup_requirements
+    setup_requires=setup_requirements,
+    extras_require={'rio_reproject': ["rasterio"]}
 )

tests/CI_docker/context/environment_py_tools_ds.yml

@@ -10,7 +10,6 @@ dependencies:
   - gdal
   - conda-forge::libgdal  # force to use conda-forge for libgdal to avoid package version incompatiblies due to mixed channels (libkea.so.1.4.7: cannot open shared object file: No such file or directory)
   # - kealib    # fix for libkea.so.1.4.7: cannot open shared object file: No such file or directory (not needed as long as libgdal and gdal are conda-forge packages)
-  - rasterio
   - pyproj
   - geopandas
   - pip: