Merge branch 'master' into 'geodetic'

# Conflicts:
#   pymagglobal/__init__.py

pymagglobal/__init__.py

@@ -29,14 +29,14 @@ used in the geomagnetism community to evaluate global field models. It can be
 applied to all cubic-spline based geomagnetic field models stored in the same
 file format as gufm1 or the CALSxk model series.
 
-The package exposes several methods that can be applied to models or splines representing
-a model. To acces the models, use the `Model` class or its attribute
-`Model.splines`. With the `models` dictionary, several built-in models can be
-accessed, see also the `list of included models
+The package exposes several methods that can be applied to models or splines
+representing a model. To acces the models, use the `Model` class or its
+attribute `Model.splines`. With the `models` dictionary, several built-in
+models can be accessed, see also the `list of included models
 <overview.html#included-models>`__.
 '''
 
-# expose only utilities and core modules
+# expose only utilities and core members
 __all__ = ['local_curve', 'dipole_series', 'file2splines', 'field',
            'built_in_models', 'coefficients', 'utils', 'secular_variation',
            'power_spectrum', 'Model']

pymagglobal/_commands.py

@@ -27,6 +27,15 @@ from matplotlib import pyplot as plt
 from pymagglobal import core
 from pymagglobal import utils
 
+from urllib.error import URLError
+from warnings import warn
+
+
+class TimeOutWarning(Warning):
+    '''Just to give the warning a meaningful name.
+    '''
+    pass
+
 
 def args2times(args):
     '''Read the range of the model and create a linear array to evaluate it.
@@ -576,7 +585,12 @@ def maps(args, fig=None):
                                            cmap=cmaps[it],
                                            levels=levels[it],
                                            extend=extends[it])
-            axs[it].coastlines(alpha=0.8, lw=0.5)
+            try:
+                axs[it].coastlines(alpha=0.8, lw=0.5)
+            except URLError:
+                warn('Server connection timed out. Coastlines could not be '
+                     'loaded.',
+                     category=TimeOutWarning)
             axs[it].set_global()
             axs[it].set_title(f'{utils._names[args.type][it]} [{units[it]}]')
             colaxs[it].tick_params(labelsize=12)