Waiting process

F90tools.py

@@ -2,6 +2,7 @@ import sys
 import os
 import inspect
 import importlib
+from multiprocessing import Pool
 
 def localdir(follow_symlinks=True):
     if getattr(sys, 'frozen', False): # py2exe, PyInstaller, cx_Freeze
@@ -34,3 +35,24 @@ def compilef90(mod, mpi=None) :
         mpimod.COMM_WORLD.Barrier()
     return
 
+def waitingAnimation(n):
+    import time
+    n = n%3+1
+    dots = n*'.'+(3-n)*' '
+    sys.stdout.write('\r Waiting '+ dots)
+    sys.stdout.flush()
+    time.sleep(0.5)
+    return n
+
+def waitingProcess(f,x):
+    with Pool(processes=1) as pool:
+        res = pool.apply_async(f, (x,))
+        waiting, n = True, 0
+        while waiting:
+            try:
+                waiting = not res.successful()
+                R = res.get()
+            except AssertionError:
+                n = waitingAnimation(n)
+        sys.stdout.write('\r Loading complete\n')
+    return R

StationDiag.py

@@ -53,12 +53,33 @@ import Locations as LO
 #
 # Read all the gauging stations positoned in the routing graph
 #
-L = LO.PlacedLocations(GraphFile)
+def fL(GraphFile):
+    L = LO.PlacedLocations(GraphFile)
+    return L
+
+print('\n Starting loading locations')
+L=F90T.waitingProcess(fL,GraphFile)
+#print('\n Starting loading locations')
+#with Pool(processes=1) as pool:
+#        res = pool.apply_async(fL, (GraphFile,))
+#        waiting, n = True, 0
+#        while waiting:
+#            try:
+#                waiting = not res.successful()
+#                L = res.get()
+#            except AssertionError:
+#                n = F90T.waitingAnimation(n)
+#        sys.stdout.write('\r Loading complete\n')
 #
 # Read all the stations in the river gauge (GRDC) data base
 #
-A=AS.AllStations()
-A.fetchnetcdf(GRDCFile, metaonly=True, region=[L.lonrange,L.latrange])
+def fA(GRDCFile):
+    A=AS.AllStations()
+    A.fetchnetcdf(GRDCFile, metaonly=True, region=[L.lonrange,L.latrange])
+    return A
+
+print('\n Starting loading GRDC file')
+A=F90T.waitingProcess(fA,GRDCFile)
 #
 # Find the IDs of all the stations and exclusions listed in stations.def
 #