Add meteostat tool (#1180)

docs/Utilities/Meteostat_weather.md

@@ -0,0 +1,45 @@
+[[/Utilities/Meteostat_weather]] - Meteostat weather access
+
+# Synopsis
+
+Shell:
+
+~~~
+    $ python3 meteostat.py [OPTIONS] ...
+~~~
+
+GLM:
+
+~~~
+    #python3 meteostat.py [OPTIONS] ...
+~~~
+
+Options:
+
+-  `-h|--help|help`:         Get this help information (exits with code 0)
+
+-  `-c|--csv=CSVNAME`:       Name the CSV output file (optional)
+
+-  `-g|--glm=GLMNAME`:       Name the GLM output file (optional)
+
+-  `-n|--name=OBJNAME`:      Name the weather object (optional)
+
+-  `-p|--position=LAT,LON`:  Specify the location (required)
+
+-  `-s|--start=YYYY-MM-D`D:  Specify the start date (optional)
+
+-  `-e|--end=YYYY-MM-DD`:    Specify the end date (optional)
+
+# Description
+
+The `meteostat_weather` tool gathers data from the Meteostat website and converts it
+to a GridLAB-D weather object. If neither `CSVNAME` or `GLMNAME` are provided the weather 
+data is written to stdout.  Otherwise, the default `CSVNAME` is `meteostat_ID.csv` where
+`ID` is the station identifier provided by Meteostat.  The default weather object is
+also named `meteostat_ID`.  If the start date and/or end date are not specified, then
+the default is all available data.
+
+# See also
+
+* [https://dev.meteostat.net/]
+

module/climate/weather.cpp

@@ -115,9 +115,18 @@ weather::weather(MODULE *module)
 
 EXPORT int create_weather(OBJECT **obj, OBJECT *parent)
 {
-	weather *my = (weather*)(obj+1);
-	my->next = NULL;
-	return 1;	// don't want it to get called, but better to have it not be fatal
+	*obj = gl_create_object(weather::oclass);
+	if ( *obj != NULL )
+	{
+		weather *my = OBJECTDATA(*obj,weather);
+		gl_set_parent(*obj,parent);
+		my->next = NULL;
+		return 1;
+	}
+	else
+	{
+		return 0;
+	}
 }
 
 /// Synchronize the cliamte object

tools/Makefile.mk

@@ -12,6 +12,7 @@ dist_pkgdata_DATA += tools/insights.py
 dist_pkgdata_DATA += tools/market_data.py
 dist_pkgdata_DATA += tools/mdb_info.py
 dist_pkgdata_DATA += tools/market_model.py
+dist_pkgdata_DATA += tools/meteostat_weather.py
 dist_pkgdata_DATA += tools/metar2glm.py
 dist_pkgdata_DATA += tools/noaa_forecast.py
 dist_pkgdata_DATA += tools/nsrdb_weather.py