python: patched webbrowser module for Haiku (#4199)

dev-lang/python/patches/python3-3.7.3.patchset

@@ -696,3 +696,32 @@ index 97973bc..b2e4095 100644
 -- 
 2.21.0
 
+
+From f55317a2a10d85c3240225d3c22f76e155cbe911 Mon Sep 17 00:00:00 2001
+From: Philipp Wolfer <phil@parolu.io>
+Date: Mon, 23 Sep 2019 09:14:58 +0200
+Subject: [PATCH] webbrowser: Support for default browsers on Haiku
+
+---
+ Lib/webbrowser.py | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
+index 0af36c4301..0a39655ab9 100755
+--- a/Lib/webbrowser.py
++++ b/Lib/webbrowser.py
+@@ -527,6 +527,11 @@ def register_standard_browsers():
+                         "netscape", "opera", iexplore):
+             if shutil.which(browser):
+                 register(browser, None, BackgroundBrowser(browser))
++    elif sys.platform[:5] == "haiku":
++        # First try to use the default configured browser
++        register("haiku-default", None, GenericBrowser("open"))
++        # Fall back to WebPositive as the standard browser of Haiku
++        register("webpositive", None, BackgroundBrowser("WebPositive"))
+     else:
+         # Prefer X browsers if present
+         if os.environ.get("DISPLAY"):
+--
+2.23.0
+