Add rateslib to packages (pyodide#5146)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Agriya Khetarpal <[email protected]>

packages/rateslib/meta.yaml

@@ -0,0 +1,23 @@
+package:
+  name: rateslib
+  version: 1.5.0
+  top-level:
+    - rateslib
+source:
+  url: https://files.pythonhosted.org/packages/02/d7/7695bb1b6a240ecfae77804d3fc242e30582fd83973f76dda03b23d921a6/rateslib-1.5.0.tar.gz
+  sha256: 7c7af2707f20974a70403689f84905757a4ed084e4c92229388d2fc30b331b04
+requirements:
+  run:
+    - numpy
+    - pandas
+    - matplotlib
+  executable:
+    - rustup
+about:
+  home: https://github.com/attack68/rateslib
+  PyPI: https://pypi.org/project/rateslib
+  summary: A fixed income library for trading interest rates
+  license: CC-BY-NC-ND-4.0
+extra:
+  recipe-maintainers:
+    - NickAltmann

packages/rateslib/test_rateslib.py

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+import pytest
+from pytest_pyodide import run_in_pyodide
+
+
+@pytest.mark.driver_timeout(60)
+@run_in_pyodide(packages=["rateslib"])
+def test_add_tenor(selenium):
+    import datetime
+
+    import rateslib as rl
+
+    start_date = datetime.datetime(2024, 10, 29)
+    end_date = datetime.datetime(2024, 10, 31)
+
+    test_date = rl.add_tenor(start_date, "2b", "F", "nyc")
+
+    assert end_date == test_date