Add new hook

pre_commit_hooks/detect_datetime_now.py

@@ -0,0 +1,24 @@
+from __future__ import absolute_import
+from __future__ import print_function
+from __future__ import unicode_literals
+
+import argparse
+import os
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description='Check if datetime.now is being used.')
+    parser.add_argument('filenames', nargs='*', help='Filenames to check')
+    args = parser.parse_args(argv)
+
+    for filename in args.filenames:
+        if os.path.isfile(filename):
+            with open(filename, 'rb') as f:
+                if b'datetime.now()' in f.read():
+                    return 1
+
+    return 0
+
+
+if __name__ == '__main__':
+    exit(main())