update date verification

kmeans.py

@@ -16,13 +16,14 @@ def getDatasForPeriod(startPeriod, endPeriod, indicators):
 	return datas
 
 def verifyDateInPeriod(startPeriod, endPeriod, year, month, day):
-	date = datetime.strptime(year + "-" + month + "-" + day, "%Y-%m-%d")
-	dateStart = datetime.strptime(startPeriod, "%Y-%m-%d")
-	dateEnd = datetime.strptime(endPeriod, "%Y-%m-%d")
-
-	if date < dateStart or date > dateEnd:
-		return False
-	return True
+    isDate = year.isdigit() AND month.isdigit() AND day.isdigit()
+    if isDate:
+        date = datetime.strptime(year + "-" + month + "-" + day, "%Y-%m-%d")
+        dateStart = datetime.strptime(startPeriod, "%Y-%m-%d")
+        dateEnd = datetime.strptime(endPeriod, "%Y-%m-%d")
+        if date >= dateStart and date <= dateEnd:
+            return True
+	return False
 
 def getDecileForAllStations(startPeriod, endPeriod, table, nb_indicators, indicators_list):
 	# map with station and list of maps