fix petl executable

bin/petl

@@ -1,19 +1,20 @@
 #!/usr/bin/env python
 
+from __future__ import print_function, division, absolute_import
 import sys
 import os
 import os.path
 import glob
 from optparse import OptionParser
 
-from petl import VERSION
-from petl.fluent import *
+from petl import __version__
+from petl import *
 
 parser = OptionParser(
     usage="%prog [options] expression",
     description="Evaluate a Python expression.  The expression will be "
-                "evaluated using eval(), with petl.fluent functions imported.",
-    version=VERSION)
+                "evaluated using eval(), with petl functions imported.",
+    version=__version__)
 
 options, args = parser.parse_args()
 
@@ -24,7 +25,7 @@ except ValueError:
 r = eval(expression)
 
 if r is not None:
-    if isinstance(r, FluentWrapper):
-        print look(r)
+    if isinstance(r, Table):
+        print(look(r))
     else:
-        print str(r)
+        print(str(r))

docs/intro.rst

@@ -208,8 +208,8 @@ Also included in the ``petl`` distribution is a script to execute
 simple transformation pipelines directly from the operating system
 shell. E.g.::
 
-    $ petl "dummytable().tocsv()" > dummy.csv
-    $ cat dummy.csv | petl "fromcsv().cut('foo', 'baz').selectgt('baz', 0.5).head().data().totsv()"
+    $ petl "dummytable().tocsv()" > example.csv
+    $ cat example.csv | petl "fromcsv().cut('foo', 'baz').selectgt('baz', 0.5).head().data().totsv()"
 
 The ``petl`` script is extremely simple, it expects a single
 positional argument, which is evaluated as Python code but with all of