add dynamic dependency in pyproject.toml

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "diffpy.structure"
-dynamic=['version']
+dynamic=['version', 'dependencies']
 authors = [
   { name="Simon J.L. Billinge group", email="[email protected]" },
 ]
@@ -48,6 +48,9 @@ include = ["*"]  # package names should match these glob patterns (["*"] by defa
 exclude = ["diffpy.structure.tests*"]  # exclude packages matching these glob patterns (empty by default)
 namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
+[tool.setuptools.dynamic]
+dependencies = {file = ["requirements/run.txt"]}
+
 [tool.black]
 line-length = 115
 include = '\.pyi?$'