From 571b42f5b15eba27d6e91d3e8739cab280f2a0e5 Mon Sep 17 00:00:00 2001
From: "Phyks (Lucas Verney)" <phyks@phyks.me>
Date: Sun, 26 Nov 2017 16:51:37 +0100
Subject: [PATCH] Check that postal codes are strings in config

---
 flatisfy/config.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/flatisfy/config.py b/flatisfy/config.py
index 669e453..4e1d798 100644
--- a/flatisfy/config.py
+++ b/flatisfy/config.py
@@ -163,6 +163,7 @@ def validate_config(config, check_with_data):
 
             assert "postal_codes" in constraint
             assert constraint["postal_codes"]
+            assert all(isinstance(x, str) for x in constraint["postal_codes"])
             if check_with_data:
                 opendata_postal_codes = [
                     x.postal_code