Preparing git repo for final project

problems/pset0/einstein/einstein.py

@@ -0,0 +1,16 @@
+c = 300000000
+
+
+def compute_energy():
+    mass = None
+    while not isinstance(mass, int):
+        input_string = input("Enter a mass:\t\t")
+        try:
+            mass = int(input_string)
+        except (ValueError, TypeError):
+            mass = None
+    print(mass*(c**2))
+
+
+if __name__ == "__main__":
+    compute_energy()