Import pysqlite3 if available, closes #360 (#361)

datasette/utils.py

@@ -9,13 +9,17 @@ import os
 import pkg_resources
 import re
 import shlex
-import sqlite3
 import tempfile
 import time
 import shutil
 import urllib
 import numbers
 
+try:
+    import pysqlite3 as sqlite3
+except ImportError:
+    import sqlite3
+
 # From https://www.sqlite.org/lang_keywords.html
 reserved_words = set((
     'abort action add after all alter analyze and as asc attach autoincrement '