--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/planemo/lib/python3.7/site-packages/libfuturize/fixes/fix_cmp.py	Fri Jul 31 00:32:28 2020 -0400
@@ -0,0 +1,33 @@
+# coding: utf-8
+"""
+Fixer for the cmp() function on Py2, which was removed in Py3.
+
+Adds this import line::
+
+    from past.builtins import cmp
+
+if cmp() is called in the code.
+"""
+
+from __future__ import unicode_literals
+from lib2to3 import fixer_base
+
+from libfuturize.fixer_util import touch_import_top
+
+
+expression = "name='cmp'"
+
+
+class FixCmp(fixer_base.BaseFix):
+    BM_compatible = True
+    run_order = 9
+
+    PATTERN = """
+              power<
+                 ({0}) trailer< '(' args=[any] ')' >
+              rest=any* >
+              """.format(expression)
+
+    def transform(self, node, results):
+        name = results["name"]
+        touch_import_top(u'past.builtins', name.value, node)