From 274867ca678df87a3b261e4473e08cb1e851f256 Mon Sep 17 00:00:00 2001
From: Jonathan Harris <jonathan@marginal.org.uk>
Date: Sat, 29 Jul 2017 14:30:40 +0100
Subject: [PATCH] url parameter no longer mandatory for HyperlinkLabel

---
 plugins/edsm.py      | 2 +-
 ttkHyperlinkLabel.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/edsm.py b/plugins/edsm.py
index a38be968..a3900232 100644
--- a/plugins/edsm.py
+++ b/plugins/edsm.py
@@ -64,7 +64,7 @@ def plugin_start():
 
 def plugin_app(parent):
     this.system_label = tk.Label(parent, text = _('System') + ':')	# Main window
-    this.system = HyperlinkLabel(parent, compound=tk.RIGHT, url = None, popup_copy = True)
+    this.system = HyperlinkLabel(parent, compound=tk.RIGHT, popup_copy = True)
     return (this.system_label, this.system)
 
 def plugin_prefs(parent, cmdr, is_beta):
diff --git a/ttkHyperlinkLabel.py b/ttkHyperlinkLabel.py
index 734d44c9..73f1a9e4 100644
--- a/ttkHyperlinkLabel.py
+++ b/ttkHyperlinkLabel.py
@@ -43,7 +43,7 @@ if platform == 'win32':
 class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
 
     def __init__(self, master=None, **kw):
-        self.url = kw.pop('url')
+        self.url = 'url' in kw and kw.pop('url') or None
         self.popup_copy = kw.pop('popup_copy', False)
         self.underline = kw.pop('underline', None)	# override ttk.Label's underline
         self.foreground = kw.get('foreground') or 'blue'