Add pytest as a dev requirement

cpsievert · cpsievert · commit 3f7fe4025d5c · 2022-07-27T13:46:10.000-04:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,3 +1,4 @@
+pytest>=6.2.4
 black>=22.3.0
 flake8>=3.9.2
 wheel
diff --git a/tests/__init__.py b/tests/__init__.py
@@ -0,0 +1 @@
+"""Unit test package for shinywidgets."""

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+"""Unit test package for shinywidgets."""`