Try to prevent the {{VERSION_PLACEHOLDER}} breaking tests

Author: adamalton

setup.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 from setuptools import find_packages, setup
 import os
+import re
 
 PACKAGES = find_packages()
 REQUIREMENTS = ["django >=3.2,<5.3"]
@@ -15,10 +16,6 @@
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.4",
-    "Programming Language :: Python :: 3.5",
-    "Programming Language :: Python :: 3.6",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -31,9 +28,14 @@
 )
 LONG_DESCRIPTION = open(os.path.join(os.path.dirname(__file__), "README.md")).read()
 
+VERSION = "{{VERSION_PLACEHOLDER}}"
+if not re.match(r"^\d+\.\d+\.\d+$", VERSION):
+    # In tests, where we haven't replaced the version placeholder, just use a default version
+    VERSION = "1.0.0"
+
 setup(
     name="django-csp-reports",
-    version="{{VERSION_PLACEHOLDER}}",
+    version=VERSION,
     description=DESCRIPTION,
     long_description=LONG_DESCRIPTION,
     long_description_content_type="text/markdown",
@@ -42,7 +44,7 @@
     url="https://github.com/adamalton/django-csp-reports",
     packages=PACKAGES,
     include_package_data=True,
-    python_requires=">=3.4",
+    python_requires=">=3.8",
     install_requires=REQUIREMENTS,
     tests_require=TEST_REQUIREMENTS,
     extras_require=EXTRAS_REQUIRE,