From a44fbc75c81e4a904732a4d9e6c33263b23a08df Mon Sep 17 00:00:00 2001
From: Daniel Valenzuela <danvalen1@gmail.com>
Date: Thu, 15 Oct 2020 17:21:09 -0400
Subject: [PATCH] fixed bug with len() of url()

---
 Untitled.ipynb       | 111 +++++++++++++++++++++++++++++++++++++++++++
 waybackpy/wrapper.py |   9 ++--
 2 files changed, 117 insertions(+), 3 deletions(-)
 create mode 100644 Untitled.ipynb

diff --git a/Untitled.ipynb b/Untitled.ipynb
new file mode 100644
index 0000000..d01ae24
--- /dev/null
+++ b/Untitled.ipynb
@@ -0,0 +1,111 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 24,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The autoreload extension is already loaded. To reload it, use:\n",
+      "  %reload_ext autoreload\n"
+     ]
+    }
+   ],
+   "source": [
+    "%load_ext autoreload\n",
+    "%autoreload 2\n",
+    "from waybackpy import wrapper"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "https://web.archive.org/web/20201015031659/https://www.google.com/\n"
+     ]
+    }
+   ],
+   "source": [
+    "user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36'\n",
+    "url = 'https://www.google.com/'\n",
+    "\n",
+    "new_archive_url = wrapper.Url(user_agent=user_agent, url=url).newest()\n",
+    "print(new_archive_url)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "len(wrapper.Url(user_agent=user_agent, url='https://medium.com/@danvalen1'))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "print(timestamp)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "save"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "learn-env",
+   "language": "python",
+   "name": "learn-env"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.10"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/waybackpy/wrapper.py b/waybackpy/wrapper.py
index 49e5f30..20bbe90 100644
--- a/waybackpy/wrapper.py
+++ b/waybackpy/wrapper.py
@@ -80,9 +80,12 @@ class Url:
         return "%s" % self.archive_url
 
     def __len__(self):
-        diff = datetime.utcnow() - self.timestamp
-        return diff.days
-
+        if self.timestamp != None:
+            diff = datetime.utcnow() - self.timestamp
+            return diff.days
+        else
+            return None
+    
     def _url_check(self):
         """Check for common URL problems."""
         if "." not in self.url: