BUG: fix s parameter

TimeSeries_allpreprocess.py

@@ -18,7 +18,7 @@ def main(argv):
     cmd_path = os.path.dirname(__file__)
 
     try:
-        opts, args = getopt.getopt(argv, 'w:o:d:f:t:p:s')
+        opts, args = getopt.getopt(argv, 'w:o:d:f:t:p:s:')
     except getopt.GetoptError as err:
         sys.exit(err)
 
@@ -27,7 +27,7 @@ def main(argv):
         sys.exit('%s does not exist'%shp_file)
 
     output_folder = None
-    dates_file = None
+    dates_file = "None"
     date_beg = None
     date_end = None
     download_platform = None
@@ -63,7 +63,7 @@ def main(argv):
         elif opt == '-s':
             download_shp_file = str(val)
 
-    if os.path.exists(dates_file) == False :
+    if os.path.exists(dates_file) == False and dates_file != "None" :
         try :
             date_step = int(dates_file)
             dates_file = os.path.join(output_folder,'output_dates.txt')