Save the runtime status information in the application object for using

it other places.

globals() does not return consistent value across the application
context.

Thanks Neel Patel for reporting the issue.

web/pgAdmin4.py

@@ -72,6 +72,9 @@ else:
         config.DEFAULT_SERVER_PORT)
     server_port = config.DEFAULT_SERVER_PORT
 
+# Let the application save the status about the runtime for using it later.
+app.PGADMIN_RUNTIME = PGADMIN_RUNTIME
+
 # Output a startup message if we're not under the runtime
 if not PGADMIN_RUNTIME:
     print("Starting %s. Please navigate to http://localhost:%d in your browser." %

web/pgadmin/misc/bgprocess/processes.py

@@ -22,6 +22,7 @@ import pytz
 from subprocess import Popen, PIPE
 import sys
 
+from flask import current_app as app
 from flask.ext.babel import gettext as _
 from flask.ext.security import current_user
 
@@ -33,13 +34,6 @@ if sys.version_info < (3,):
 else:
     from io import StringIO
 
-# The port number should have already been set by the runtime if we're running
-# in desktop mode.
-PGADMIN_RUNTIME = False
-
-if 'PGADMIN_PORT' in globals():
-    PGADMIN_RUNTIME = True
-
 
 def get_current_time(format='%Y-%m-%d %H:%M:%S.%f %z'):
     """
@@ -188,7 +182,7 @@ class BatchProcess(object):
 
         p = None
         cmd = [
-            (sys.executable if not PGADMIN_RUNTIME else
+            (sys.executable if not app.PGADMIN_RUNTIME else
                 'pythonw.exe' if os.name == 'nt' else 'python'),
             executor,
             '-p', self.id,