Fix installation problem on Python 3.7 (#68)

Author: wch

.github/workflows/pytest.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
       fail-fast: false
 
     steps:

CHANGELOG.md

@@ -9,12 +9,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Bug fixes
 
+* Fixed installation problems on Python 3.7. (#68)
+
 
 ## [0.1.3] - 2022-12-08
 
 ### Bug fixes
 
-* Closed #65: get shinywidgets working with ipywidgets 8.0.3.
+* Closed #65: get shinywidgets working with ipywidgets 8.0.3. (#66)
+
 
 ## [0.1.2] - 2022-07-27
 

setup.cfg

@@ -15,6 +15,7 @@ classifiers =
     Intended Audience :: Developers
     License :: OSI Approved :: MIT License
     Natural Language :: English
+    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
@@ -24,7 +25,7 @@ project_urls =
     Source Code = https://github.com/rstudio/py-shinywidgets/
 
 [options]
-python_requires = >=3.8
+python_requires = >=3.7
 packages = find:
 test_suite = tests
 include_package_data = True
@@ -35,6 +36,8 @@ install_requires =
     jupyter_core
     shiny>=0.2.0.9007
     python-dateutil>=2.8.2
+    # Needed because of https://github.com/python/importlib_metadata/issues/411
+    importlib-metadata>=4.8.3,<5; python_version < "3.8"
 tests_require =
     pytest>=3
 zip_safe = False