tutorial: make the tutorial workflow run a little slower

* Address feedback that the workflow runs too quickly.
* Add 2-4s sleeps to slow it down.
* Closes cylc#6041

cylc/flow/etc/tutorial/cylc-forecasting-workflow/bin/consolidate-observations

@@ -34,6 +34,7 @@ from glob import glob
 import math
 import os
 import sys
+import time
 
 import util
 
@@ -115,4 +116,5 @@ def main():
 
 
 if __name__ == '__main__':
+    time.sleep(2)  # make the tutorial run a little slower
     main()

cylc/flow/etc/tutorial/cylc-forecasting-workflow/bin/forecast

@@ -43,6 +43,7 @@ Environment Variables:
 import os
 from subprocess import Popen, PIPE
 import sys
+import time
 
 import util
 
@@ -242,6 +243,7 @@ def main(forecast_interval, forecast_iterations):
 
 
 if __name__ == '__main__':
+    time.sleep(4)  # make the tutorial run a little slower
     try:
         args = [int(sys.argv[1]), int(sys.argv[2])]
     except IndexError:

cylc/flow/etc/tutorial/cylc-forecasting-workflow/bin/get-observations

@@ -37,6 +37,7 @@ from datetime import datetime
 import json
 import os
 import re
+import time
 
 import requests
 
@@ -215,5 +216,6 @@ def main(site_id, api_key=None):
 
 
 if __name__ == '__main__':
+    time.sleep(2)  # make the tutorial run a little slower
     main(os.environ['SITE_ID'],
          os.environ.get('API_KEY'))

cylc/flow/etc/tutorial/cylc-forecasting-workflow/bin/get-rainfall

@@ -37,6 +37,7 @@ from datetime import datetime
 import math
 import os
 import shutil
+import time
 
 import requests
 
@@ -195,4 +196,5 @@ def main():
 
 
 if __name__ == '__main__':
+    time.sleep(2)  # make the tutorial run a little slower
     main()

cylc/flow/etc/tutorial/cylc-forecasting-workflow/bin/post-process

@@ -38,6 +38,7 @@ Environment Variables:
 from datetime import datetime, timedelta
 import os
 import sys
+import time
 
 import util
 
@@ -101,6 +102,7 @@ def main(site_name, time):
 
 
 if __name__ == '__main__':
+    time.sleep(2)  # make the tutorial run a little slower
     try:
         args = (sys.argv[1].lower(), int(sys.argv[2]))
     except IndexError: