Added pyepsg to requirements as it is now an optional requirement of cartopy...

Added pyepsg to requirements as it is now an optional requirement of cartopy but still used in geoarray. Updated version info.

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

HISTORY.rst

@@ -2,6 +2,12 @@
 History
 =======
 
+0.10.2 (2020-10-27)
+-------------------
+
+* Removed cartopy pinning and added a warning about the missing grid labels in GeoArray.show() with cartopy<0.18.0.
+
+
 0.10.2 (2020-10-27)
 -------------------
 

geoarray/baseclasses.py

@@ -1323,9 +1323,17 @@ class GeoArray(object):
                   origin='upper', transform=crs_in, extent=list(self.box.boundsMap))
 
         # show grid lines
-        # NOTE: The current version of cartopy can only label PlateCarree grid lines - (crs=crs_out) is not yet
-        #       supported and the labels are just missing in that case.
-        ax.gridlines(draw_labels=True, linewidth=2, color='gray', alpha=0.5, linestyle='--')
+        try:
+            # cartopy>=0.18.0 only
+            # NOTE: The current version of cartopy (0.18.0) can only label PlateCarree grid lines -
+            #       (crs=crs_out) is not yet supported and the labels are just missing in that case.
+            ax.gridlines(draw_labels=True, linewidth=2, color='gray', alpha=0.5, linestyle='--')
+        except TypeError as e:
+            if 'Cannot label gridlines on a _EPSGProjection plot.' in str(e):
+                warnings.warn('The grid line labels cannot be drawn with cartopy<0.18.0.')
+                ax.gridlines(draw_labels=False, linewidth=2, color='gray', alpha=0.5, linestyle='--')
+            else:
+                raise
 
         if return_map:
             return fig, ax

geoarray/version.py

@@ -20,5 +20,5 @@
 # with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-__version__ = '0.10.2'
-__versionalias__ = '20201027.02'
+__version__ = '0.10.3'
+__versionalias__ = '20201028.01'

requirements.txt

-cartopy>=0.18.0
+cartopy
 dill
 folium
 gdal>=2.1.0

setup.py

@@ -36,7 +36,7 @@ with open("geoarray/version.py") as version_file:
     exec(version_file.read(), version)
 
 requirements = [
-    'cartopy>=0.18.0',
+    'cartopy',
     'dill',
     'folium',
     'gdal>=2.1.0',

tests/CI_docker/context/environment_geoarray.yml

@@ -6,7 +6,7 @@ channels: &id1
 dependencies:
   - python=3.*.*
   - pip  # avoids that conda uses the wrong pip
-  - cartopy>=0.18.0
+  - cartopy
   - gdal>=2.1.0
   - holoviews
   - matplotlib