Merge pull request #10 from cadenmyers13/pytest

Edits for pytest to pass

Author: sbillinge

.github/workflows/matrix-and-codecov-on-merge-to-main.yml

@@ -16,6 +16,6 @@ jobs:
     with:
       project: diffpy.fourigui
       c_extension: false
-      headless: false
+      headless: true
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/tests-on-pr.yml

@@ -13,4 +13,4 @@ jobs:
     with:
       project: diffpy.fourigui
       c_extension: false
-      headless: false
+      headless: true

diffpy/__init__.py

@@ -0,0 +1,5 @@
+h5py
+time
+tk
+matplotlib
+numpy