[h5py] 183/455: Implement get, set_default

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to annotated tag 1.3.0
in repository h5py.

commit e6d6d97c82160f3cae1a141a7d540dbe0e309eb1
Author: andrewcollette <andrew.collette at gmail.com>
Date:   Mon Dec 15 06:46:17 2008 +0000

    Implement get, set_default
---
 h5py/highlevel.py | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/h5py/highlevel.py b/h5py/highlevel.py
index 3b8d075..e09df83 100644
--- a/h5py/highlevel.py
+++ b/h5py/highlevel.py
@@ -159,6 +159,32 @@ class _DictCompat(object):
             for x in self:
                 yield (x, self[x])
 
+    def get(self, name, default):
+        """ Retrieve the member, or return default if it doesn't exist """
+        with self._lock:
+            if name in self:
+                return self[name]
+            return default
+
+    def setdefault(self, name, default):
+        """ Retrieve the member, setting it to default if it doesn't exist.
+
+        Be careful; unlike the get() method, the returned object is *not*
+        generally the provided default object.  The equivalent operation is:
+
+            obj[name] = default
+            return obj[name]
+
+        For groups, the returned object is always a Group, Dataset or
+        Datatype.  For attributes, the returned object is always a NumPy
+        scalar or array.
+
+        Consider using Group.require_group or Group.require_dataset instead.
+        """
+        with self._lock:
+            if not name in self:
+                self[name] = default
+            return self[name]
 
 class Group(HLObject, _DictCompat):
 

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