PYTHON-5429 Server command is case sensitive

doc/changelog.rst

@@ -10,9 +10,10 @@ PyMongo 4.14 brings a number of changes including:
 - Added :meth:`pymongo.asynchronous.mongo_client.AsyncMongoClient.append_metadata` and
   :meth:`pymongo.mongo_client.MongoClient.append_metadata` to allow instantiated MongoClients to send client metadata
   on-demand
-
 - Introduces a minor breaking change. When encoding :class:`bson.binary.BinaryVector`, a ``ValueError`` will be raised
   if the 'padding' metadata field is < 0 or > 7, or non-zero for any type other than PACKED_BIT.
+- Fixed a bug that raised ``EncryptionError`` when using :meth:`pymongo.mongo_client.MongoClient.server_info` with an
+  encrypted connection.
 
 Changes in Version 4.13.2 (2025/06/17)
 --------------------------------------

pymongo/asynchronous/database.py

@@ -834,12 +834,12 @@ async def command(
         Any additional keyword arguments will be added to the final
         command document before it is sent.
 
-        For example, a command like ``{buildinfo: 1}`` can be sent
+        For example, a command like ``{buildInfo: 1}`` can be sent
         using:
 
-        >>> await db.command("buildinfo")
+        >>> await db.command("buildInfo")
         OR
-        >>> await db.command({"buildinfo": 1})
+        >>> await db.command({"buildInfo": 1})
 
         For a command where the value matters, like ``{count:
         collection_name}`` we can do:

pymongo/asynchronous/mongo_client.py

@@ -2311,7 +2311,7 @@ async def server_info(
         return cast(
             dict,
             await self.admin.command(
-                "buildinfo", read_preference=ReadPreference.PRIMARY, session=session
+                "buildInfo", read_preference=ReadPreference.PRIMARY, session=session
             ),
         )
 

pymongo/synchronous/database.py

@@ -834,12 +834,12 @@ def command(
         Any additional keyword arguments will be added to the final
         command document before it is sent.
 
-        For example, a command like ``{buildinfo: 1}`` can be sent
+        For example, a command like ``{buildInfo: 1}`` can be sent
         using:
 
-        >>> db.command("buildinfo")
+        >>> db.command("buildInfo")
         OR
-        >>> db.command({"buildinfo": 1})
+        >>> db.command({"buildInfo": 1})
 
         For a command where the value matters, like ``{count:
         collection_name}`` we can do:

pymongo/synchronous/mongo_client.py

@@ -2303,7 +2303,7 @@ def server_info(self, session: Optional[client_session.ClientSession] = None) ->
         return cast(
             dict,
             self.admin.command(
-                "buildinfo", read_preference=ReadPreference.PRIMARY, session=session
+                "buildInfo", read_preference=ReadPreference.PRIMARY, session=session
             ),
         )