Add wx import

Author: Sparks29032

Diff for: news/add_wx_import.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* Added a wx import to fix module not found error.
+
+**Security:**
+
+* <news item>

Diff for: src/diffpy/utils/wx/gridutils.py

@@ -16,6 +16,8 @@
 """Common functions for manipulating wx.grid.Grid.
 """
 
+import wx
+
 
 def getSelectionRows(grid):
     """Indices of the rows that have any cell selected.