Use print() function in both Python 2 and Python 3 (#722)

* Use print() function in both Python 2 and Python 3

Legacy __print__ statements are syntax errors in Python 3 but __print()__ function works as expected in both Python 2 and Python 3.

* Fix undefined names

Author: cclauss

describe.py

@@ -20,6 +20,7 @@
 The documentation is generated from a combination of the discovery document and
 the generated API surface itself.
 """
+from __future__ import print_function
 
 __author__ = '[email protected] (Joe Gregorio)'
 
@@ -354,7 +355,7 @@ def document_api(name, version):
   try:
     service = build(name, version)
   except UnknownApiNameOrVersion as e:
-    print 'Warning: {} {} found but could not be built.'.format(name, version)
+    print('Warning: {} {} found but could not be built.'.format(name, version))
     return
 
   http = build_http()

googleapiclient/http.py

@@ -156,7 +156,7 @@ def _retry_request(http, num_retries, req_type, sleep, rand, uri, method, *args,
       LOGGER.warning(
           'Sleeping %.2f seconds before retry %d of %d for %s: %s %s, after %s',
           sleep_time, retry_num, num_retries, req_type, method, uri,
-          resp.status if resp else exception)
+          resp.status if resp else Exception)
       sleep(sleep_time)
 
     try:

samples/audit/audit.py

@@ -38,6 +38,7 @@
 __author__ = '[email protected] (Rahul Paul)'
 
 import pprint
+import re
 import sys
 
 from oauth2client import client

samples/coordinate/coordinate.py

@@ -92,7 +92,7 @@ def main(argv):
 
     pprint.pprint(update_result)
 
-  except AccessTokenRefreshError as e:
+  except client.AccessTokenRefreshError as e:
     print ('The credentials have been revoked or expired, please re-run'
       'the application to re-authorize')
 

samples/searchconsole/search_analytics_api_sample.py

@@ -34,6 +34,7 @@
   $ python search_analytics_api_sample.py 'https://www.example.com/' '2015-05-01' '2015-05-30'
 
 """
+from __future__ import print_function
 
 import argparse
 import sys
@@ -176,22 +177,22 @@ def print_table(response, title):
     response: The server response to be printed as a table.
     title: The title of the table.
   """
-  print '\n --' + title + ':'
-
+  print('\n --' + title + ':')
+  
   if 'rows' not in response:
-    print 'Empty response'
+    print('Empty response')
     return
 
   rows = response['rows']
   row_format = '{:<20}' + '{:>20}' * 4
-  print row_format.format('Keys', 'Clicks', 'Impressions', 'CTR', 'Position')
+  print(row_format.format('Keys', 'Clicks', 'Impressions', 'CTR', 'Position'))
   for row in rows:
     keys = ''
     # Keys are returned only if one or more dimensions are requested.
     if 'keys' in row:
       keys = u','.join(row['keys']).encode('utf-8')
-    print row_format.format(
-        keys, row['clicks'], row['impressions'], row['ctr'], row['position'])
+    print(row_format.format(
+        keys, row['clicks'], row['impressions'], row['ctr'], row['position']))
 
 if __name__ == '__main__':
   main(sys.argv)

samples/searchforshopping/pagination.py

@@ -9,6 +9,11 @@
 
 from googleapiclient.discovery import build
 
+try:
+  input = raw_input
+except NameError:
+  pass
+
 
 SHOPPING_API_VERSION = 'v1'
 DEVELOPER_KEY = 'AIzaSyACZJW4JwcWwz5taR2gjIMNQrtgDLfILPc'
@@ -30,8 +35,8 @@ def main():
   itemsPerPage = response['itemsPerPage']
   totalItems = response['totalItems']
   for i in range(1, totalItems, itemsPerPage):
-    answer = raw_input('About to display results from %s to %s, y/(n)? ' %
-                       (i, i + itemsPerPage))
+    answer = input('About to display results from %s to %s, y/(n)? ' %
+                   (i, i + itemsPerPage))
     if answer.strip().lower().startswith('n'):
       # Stop if the user has had enough
       break