Per #1700, update read_tmp_ascii.py to work for both ascii2nc and sta…

…t_analysis. Just create an object named ascii_data and have both instances read it.

met/data/wrappers/read_tmp_ascii.py

@@ -8,6 +8,8 @@
     Message_Type, Station_ID, Valid_Time, Lat, Lon, Elevation,
     GRIB_Code or Variable_Name, Level, Height, QC_String, Observation_Value
 
+MPR format: See documentation of the MPR line type
+
 Version  Date
 1.0.0    2021/02/18  David Fillmore  Initial version
 """
@@ -18,24 +20,22 @@
 
 import argparse
 
-point_data = None
-
 def read_tmp_ascii(filename):
     """
     Arguments:
-        filename (string): temporary file created by write_tmp_point.py
+        filename (string): temporary file created by write_tmp_point.py or write_tmp_mpr.py
 
     Returns:
-        (list of lists): point data
+        (list of lists): point or mpr data
     """
     f = open(filename, 'r')
     lines = f.readlines()
     f.close()
 
-    global point_data
-    point_data = [eval(line.strip('\n')) for line in lines]
-
-    return point_data
+    global ascii_data
+    ascii_data = [eval(line.strip('\n')) for line in lines]
+    
+    return ascii_data
 
 if __name__ == '__main__':
     """