add as_scipy to lambdify

Author: isuruf

symengine/__init__.py

@@ -24,11 +24,13 @@
 if have_numpy:
     from .lib.symengine_wrapper import Lambdify, LambdifyCSE
 
-    def lambdify(args, exprs, real=True, backend=None):
+    def lambdify(args, exprs, real=True, backend=None, as_scipy=False):
         try:
             len(args)
         except TypeError:
             args = [args]
+        if as_scipy:
+            return Lambdify(args, *exprs, real=real, backend=backend, as_scipy=True)
         lmb = Lambdify(args, *exprs, real=real, backend=backend)
         def f(*inner_args):
             if len(inner_args) != len(args):