From: Raymond Hettinger <python@rcn.com>
Date: Thu, 30 Jan 2003 00:56:33 +0000 (+0000)
Subject: SF patch 672098: Three __contains__ implementations
X-Git-Tag: v2.3c1~2183
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0e449234bf8e68dfe96af727e2ce7a53fb4f0dad;p=python

SF patch 672098: Three __contains__ implementations

Contributed by Jp Calderone.
---

diff --git a/Lib/lib-tk/Canvas.py b/Lib/lib-tk/Canvas.py
index ed4ba348cc..ae2ced1801 100644
--- a/Lib/lib-tk/Canvas.py
+++ b/Lib/lib-tk/Canvas.py
@@ -39,6 +39,8 @@ class CanvasItem:
         return self._keys
     def has_key(self, key):
         return key in self.keys()
+    def __contains__(self, key):
+        return key in self.keys()
     def addtag(self, tag, option='withtag'):
         self.canvas.addtag(tag, option, self.id)
     def bbox(self):
diff --git a/Lib/plat-riscos/riscosenviron.py b/Lib/plat-riscos/riscosenviron.py
index d92aa31722..95a2ce55d9 100644
--- a/Lib/plat-riscos/riscosenviron.py
+++ b/Lib/plat-riscos/riscosenviron.py
@@ -32,6 +32,8 @@ class _Environ:
     def has_key(self, key):
         value = riscos.getenv(key)
         return value<>None
+    def __contains__(self, key):
+        return riscos.getenv(key) is not None
     def update(self, dict):
         for k, v in dict.items():
             riscos.putenv(k, v)
diff --git a/Lib/xml/sax/xmlreader.py b/Lib/xml/sax/xmlreader.py
index f1c9d9db2e..9a2361e349 100644
--- a/Lib/xml/sax/xmlreader.py
+++ b/Lib/xml/sax/xmlreader.py
@@ -321,6 +321,9 @@ class AttributesImpl:
     def has_key(self, name):
         return self._attrs.has_key(name)
 
+    def __contains__(self, name):
+        return self._attrs.has_key(name)
+
     def get(self, name, alternative=None):
         return self._attrs.get(name, alternative)