Remove print statement in favor of print() function in docs and examples

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### Description
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Remove print statements

### Checklist
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This pull request is:

- [X] A documentation / typographical error fix
	- Good to go, no issue or tests are needed
- [ ] A short code fix
	- please include the issue number, and create an issue if none exists, which
	  must include a complete example of the issue.  one line code fixes without an
	  issue and demonstration will not be accepted.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.   one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
	- please include the issue number, and create an issue if none exists, which must
	  include a complete example of how the feature would look.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.

**Have a nice day!**

Closes: #5166
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5166
Pull-request-sha: 04a7394f71298322188f0861b4dfe93e5485839d

Change-Id: Ib90a59fac929661a18748c6e44966fb87e3978c6

5 files changed, 6 insertions, 6 deletions

diff --git a/examples/dogpile_caching/__init__.py b/examples/dogpile_caching/__init__.py
index 91105dc02..de4a339a7 100644
--- a/examples/dogpile_caching/__init__.py
+++ b/examples/dogpile_caching/__init__.py
@@ -25,7 +25,7 @@ E.g.::
     q = q.options(RelationshipCache(Person.addresses, "default"))
 
     # query
-    print q.all()
+    print(q.all())
 
 To run, both SQLAlchemy and dogpile.cache must be
 installed or on the current PYTHONPATH. The demo will create a local
diff --git a/examples/elementtree/__init__.py b/examples/elementtree/__init__.py
index 82bb87361..b2d90a739 100644
--- a/examples/elementtree/__init__.py
+++ b/examples/elementtree/__init__.py
@@ -17,7 +17,7 @@ E.g.::
     # locate documents with a certain path/attribute structure
     for document in find_document('/somefile/header/field2[@attr=foo]'):
         # dump the XML
-        print document
+        print(document)
 
 .. autosource::
     :files: pickle_type.py, adjacency_list.py, optimized_al.py
diff --git a/examples/graphs/__init__.py b/examples/graphs/__init__.py
index 0f8fe58a7..cd0d1ddd8 100644
--- a/examples/graphs/__init__.py
+++ b/examples/graphs/__init__.py
@@ -6,7 +6,7 @@ and querying for lower- and upper- neighbors are illustrated::
     n2 = Node(2)
     n5 = Node(5)
     n2.add_neighbor(n5)
-    print n2.higher_neighbors()
+    print(n2.higher_neighbors())
 
 .. autosource::
 
diff --git a/examples/postgis/__init__.py b/examples/postgis/__init__.py
index 963a561f3..dcdbfcf57 100644
--- a/examples/postgis/__init__.py
+++ b/examples/postgis/__init__.py
@@ -31,8 +31,8 @@ and simple to use extension points.
 
 E.g.::
 
-    print session.query(Road).filter(
-        Road.road_geom.intersects(r1.road_geom)).all()
+    print(session.query(Road).filter(
+        Road.road_geom.intersects(r1.road_geom)).all())
 
 .. autosource::
 
diff --git a/examples/vertical/__init__.py b/examples/vertical/__init__.py
index 0e09b9a55..b0c00b664 100644
--- a/examples/vertical/__init__.py
+++ b/examples/vertical/__init__.py
@@ -27,7 +27,7 @@ Example::
          filter(Animal.facts.any(
            and_(AnimalFact.key == u'weasel-like',
                 AnimalFact.value == True))))
-    print 'weasel-like animals', q.all()
+    print('weasel-like animals', q.all())
 
 .. autosource::