shapefile.py: Minor cleanup of module comment and order includes.

shapefile.py

@@ -3,22 +3,26 @@
 Provides read and write support for ESRI Shapefiles.
 authors: jlawhead<at>geospatialpython.com
 maintainer: karim.bahgat.norway<at>gmail.com
-Compatible with Python versions 2.7-3.x
+Compatible with Python versions >= 3.8
 """
 
 __version__ = "2.3.1"
 
-from struct import pack, unpack, calcsize, error, Struct
+import array
+from datetime import date
+import io
+import logging
 import os
+from struct import pack, unpack, calcsize, error, Struct
 import sys
-import time
-import array
 import tempfile
-import logging
-import io
-from datetime import date
+import time
 import zipfile
 
+from urllib.error import HTTPError
+from urllib.parse import urlparse, urlunparse
+from urllib.request import urlopen, Request
+
 # Create named logger
 logger = logging.getLogger(__name__)
 
@@ -76,10 +80,6 @@
 
 xrange = range
 izip = zip
-
-from urllib.parse import urlparse, urlunparse
-from urllib.error import HTTPError
-from urllib.request import urlopen, Request
 
 # Helpers