From 6ebdac027e0735777ed4adbc665c90292e86af4c Mon Sep 17 00:00:00 2001
From: JamesParrott <80779630+JamesParrott@users.noreply.github.com>
Date: Fri, 20 Sep 2024 10:40:58 +0100
Subject: [PATCH] Add draft user warning

---
 shapefile.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/shapefile.py b/shapefile.py
index 12af74d..b924b24 100644
--- a/shapefile.py
+++ b/shapefile.py
@@ -14,7 +14,9 @@
 import os
 import sys
 import tempfile
+import textwrap
 import time
+import warnings
 import zipfile
 from datetime import date
 from struct import Struct, calcsize, error, pack, unpack
@@ -93,6 +95,27 @@
     from urllib2 import HTTPError, Request, urlopen
     from urlparse import urlparse, urlunparse
 
+if sys.version_info < (3, 9):
+    warnings.showwarning(
+        textwrap.dedent("""\
+        Warning!
+
+        The PyShp developers propose to drop support for Pythons 3.8 and earlier, including Python 2.
+        Thereafter, Python version support will follow the official Python release
+        cycle: https://devguide.python.org/versions/.  This will make Python 3.9 the earliest
+        supported version until October 2025.
+
+        The reasoning behind this is available in the following discussion:
+        https://github.com/GeospatialPython/pyshp/discussions/290
+        Please post any feedback there.
+
+        Many thanks,
+        """),
+        category=UserWarning,
+        filename=__name__,
+        lineno=99,
+    )
+
 
 # Helpers