Updated a deprecated function call, added new submodule "network".

- updated __version__

ptds/__init__.py

@@ -15,7 +15,7 @@ __all__=[#'compatibility',
          'similarity',
          'GeoArray']
 
-__version__ = '20170405_01'
+__version__ = '20170422_01'
 __author__='Daniel Scheffler'
 
 # Validate GDAL version

ptds/similarity/raster.py

@@ -19,4 +19,4 @@ def calc_ssim(image0, image1, dynamic_range=None, win_size=None, gaussian_weight
         image0 = image0.astype(np.int16)
         image1 = image1.astype(np.int16)
 
-    return ssim(image0, image1, dynamic_range=dynamic_range, win_size=win_size, gaussian_weights=gaussian_weights)
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+    return ssim(image0, image1, data_range=dynamic_range, win_size=win_size, gaussian_weights=gaussian_weights)
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ptds/web/network.py

+import six
+import json
+import socket
+if six.PY2:
+    from urllib import urlopen
+else:
+    from urllib.request import urlopen
+
+
+def get_geoinfo():
+    """Returns a dictionary containing country, city, longitude, latitude and IP of the executing host."""
+
+    url = 'http://ipinfo.io/json'
+    info = json.loads(urlopen(url).read())
+    ip = info['ip']
+
+    urlFoLaction = "http://www.freegeoip.net/json/{0}".format(ip)
+    locationInfo = json.loads(urlopen(urlFoLaction).read())
+
+    return dict(
+        Country = locationInfo['country_name'],
+        City = locationInfo['city'],
+        Latitude = str(locationInfo['latitude']),
+        Longitude = str(locationInfo['longitude']),
+        IP = str(locationInfo['ip'])
+    )
+
+
+def is_connected(REMOTE_SERVER = "www.google.com"):
+    """Checks if an internet connection is present."""
+
+    try:
+        # see if we can resolve the host name -- tells us if there is
+        # a DNS listening
+        host = socket.gethostbyname(REMOTE_SERVER)
+        # connect to the host -- tells us if the host is actually
+        # reachable
+        socket.create_connection((host, 80), 2)
+        return True
+    except:
+        pass
+    return False
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