Revert "Update dataproc/submit_job_to_cluster.py" [(#1864)](GoogleCloudPlatform/python-docs-samples#1864)

* Revert "Remove test configs for non-testing directories [(#1855)](GoogleCloudPlatform/python-docs-samples#1855)"

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* Revert "Auto-update dependencies. [(#1846)](GoogleCloudPlatform/python-docs-samples#1846)"

This reverts commit 3adc94f.

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This reverts commit a48c010481c166968d9f1bd58106054c5d1c58f9.

* Revert "Non-client library example of constructing a Signed URL [(#1837)](GoogleCloudPlatform/python-docs-samples#1837)"

This reverts commit fc3284d995a8a35c473a207e80490fad265782af.

* Revert "GCF samples: handle {empty JSON, GET} requests + remove commas [(#1832)](GoogleCloudPlatform/python-docs-samples#1832)"

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* Revert "Correct the maintenance event types [(#1830)](GoogleCloudPlatform/python-docs-samples#1830)"

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* Revert "Fix GCF region tags [(#1827)](GoogleCloudPlatform/python-docs-samples#1827)"

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* Revert "Updated to Flask 1.0 [(#1819)](GoogleCloudPlatform/python-docs-samples#1819)"

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* Revert "Fix deprecation warning [(#1801)](GoogleCloudPlatform/python-docs-samples#1801)"

This reverts commit 981737e85f60eca5cc337f172249deddca9b291b.

* Revert "Update submit_job_to_cluster.py [(#1708)](GoogleCloudPlatform/python-docs-samples#1708)"

This reverts commit df1f2b2.

Author: engelke

samples/snippets/submit_job_to_cluster.py

@@ -34,6 +34,14 @@ def get_pyspark_file(filename):
     return f, os.path.basename(filename)
 
 
+def get_region_from_zone(zone):
+    try:
+        region_as_list = zone.split('-')[:-1]
+        return '-'.join(region_as_list)
+    except (AttributeError, IndexError, ValueError):
+        raise ValueError('Invalid zone provided, please check your input.')
+
+
 def upload_pyspark_file(project_id, bucket_name, filename, file):
     """Uploads the PySpark file in this directory to the configured
     input bucket."""
@@ -191,7 +199,7 @@ def get_client():
 def main(project_id, zone, cluster_name, bucket_name,
          pyspark_file=None, create_new_cluster=True):
     dataproc = get_client()
-    region = 'global'
+    region = get_region_from_zone(zone)
     try:
         if pyspark_file:
             spark_file, spark_filename = get_pyspark_file(pyspark_file)