From 0e00ff0e38b175e6e4bcd9ceaf63226518bc16fd Mon Sep 17 00:00:00 2001
From: Sebastian Spreizer <spreizer@web.de>
Date: Tue, 10 Jan 2023 16:48:49 +0100
Subject: [PATCH 1/3] Add `userdict` in nest

---
 pynest/nest/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pynest/nest/__init__.py b/pynest/nest/__init__.py
index a54cec6ed1..90a1cdc62b 100644
--- a/pynest/nest/__init__.py
+++ b/pynest/nest/__init__.py
@@ -77,6 +77,8 @@ class NestModule(types.ModuleType):
     from . import logic                              # noqa
     from .ll_api import set_communicator
 
+    userdict = {}
+
     def __init__(self, name):
         super().__init__(name)
         # Copy over the original module attributes to preserve all interpreter-given

From 052987cbfbf10cb6c28fb3dabbccd5674a0a608b Mon Sep 17 00:00:00 2001
From: Sebastian Spreizer <spreizer@web.de>
Date: Wed, 11 Jan 2023 11:00:54 +0100
Subject: [PATCH 2/3] Relocate userdict

---
 pynest/nest/__init__.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pynest/nest/__init__.py b/pynest/nest/__init__.py
index 90a1cdc62b..4054a1645e 100644
--- a/pynest/nest/__init__.py
+++ b/pynest/nest/__init__.py
@@ -77,8 +77,6 @@ class NestModule(types.ModuleType):
     from . import logic                              # noqa
     from .ll_api import set_communicator
 
-    userdict = {}
-
     def __init__(self, name):
         super().__init__(name)
         # Copy over the original module attributes to preserve all interpreter-given
@@ -428,6 +426,8 @@ def __dir__(self):
         k for k, v in vars().items() if isinstance(v, KernelAttribute) and v._readonly
     )
 
+    userdict = {}
+
 
 def _setattr_error(self, attr, val):
     """

From 0ba7a8bad62ed10b9818e05b11fcb8526c9e66fd Mon Sep 17 00:00:00 2001
From: Sebastian Spreizer <spreizer@web.de>
Date: Thu, 12 Jan 2023 14:40:43 +0100
Subject: [PATCH 3/3] Add doucumentation

---
 pynest/nest/__init__.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pynest/nest/__init__.py b/pynest/nest/__init__.py
index 4054a1645e..47aca7862d 100644
--- a/pynest/nest/__init__.py
+++ b/pynest/nest/__init__.py
@@ -427,6 +427,11 @@ def __dir__(self):
     )
 
     userdict = {}
+    """
+    The variable userdict allows users to store custom data with the NEST kernel.
+
+    Example: nest.userdict["nodes"] = [1,2,3,4]
+    """
 
 
 def _setattr_error(self, attr, val):