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 ed4ba34..ae2ced1 100644
--- a/Lib/lib-tk/Canvas.py
+++ b/Lib/lib-tk/Canvas.py
@@ -39,6 +39,8 @@
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 d92aa31..95a2ce5 100644
--- a/Lib/plat-riscos/riscosenviron.py
+++ b/Lib/plat-riscos/riscosenviron.py
@@ -32,6 +32,8 @@
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 f1c9d9d..9a2361e 100644
--- a/Lib/xml/sax/xmlreader.py
+++ b/Lib/xml/sax/xmlreader.py
@@ -321,6 +321,9 @@
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)