From: JeS24 <31299799+JeS24@users.noreply.github.com>
Date: Fri, 28 Oct 2022 13:08:45 +0530
Subject: Fixes NameError for numpy in tensor_lambdify

URL: https://github.com/einsteinpy/einsteinpy/commit/81efd556e6
---
 src/einsteinpy/symbolic/tensor.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/einsteinpy/symbolic/tensor.py b/src/einsteinpy/symbolic/tensor.py
index 8422945..15b518d 100644
--- a/src/einsteinpy/symbolic/tensor.py
+++ b/src/einsteinpy/symbolic/tensor.py
@@ -412,10 +412,10 @@ class BaseRelativityTensor(Tensor):
         """
 
         if len(args) == 0:
-            numeric_arr = sympy.lambdify([*self.syms, *self.variables], self.arr, np)
+            numeric_arr = sympy.lambdify([*self.syms, *self.variables], self.arr, modules="numpy")
             arg_list = (*self.syms, *self.variables)
         else:
-            numeric_arr = sympy.lambdify(args, self.arr, np)
+            numeric_arr = sympy.lambdify(args, self.arr, modules="numpy")
             arg_list = tuple(args)
         return arg_list, numeric_arr