started work on backend

backend/venv/lib/python3.6/site-packages/libpasteurize/fixes/fix_fullargspec.py

@@ -0,0 +1,16 @@
+u"""
+Fixer for getfullargspec -> getargspec
+"""
+
+from lib2to3 import fixer_base
+from lib2to3.fixer_util import Name
+
+warn_msg = u"some of the values returned by getfullargspec are not valid in Python 2 and have no equivalent."
+
+class FixFullargspec(fixer_base.BaseFix):
+
+    PATTERN = u"'getfullargspec'"
+
+    def transform(self, node, results):
+        self.warning(node, warn_msg)
+        return Name(u"getargspec", prefix=node.prefix)