diff --git a/setup.py b/setup.py
index c44eb9ee2..0943e7906 100644
--- a/setup.py
+++ b/setup.py
@@ -101,6 +101,7 @@
     'PyYAML>=6.0,<7',
     'pandas>=2.0.3,<3',
     'wandb>=0.15.5,<1',
+    'humanize>=4.7.0,<5',
 ]
 
 extra_deps['spark'] = [
diff --git a/simulation/core/__init__.py b/simulation/core/__init__.py
new file mode 100644
index 000000000..f3ed8325a
--- /dev/null
+++ b/simulation/core/__init__.py
@@ -0,0 +1,4 @@
+# Copyright 2023 MosaicML Streaming authors
+# SPDX-License-Identifier: Apache-2.0
+
+"""Core classes and functions for streaming simulation."""
diff --git a/simulation/interfaces/__init__.py b/simulation/interfaces/__init__.py
new file mode 100644
index 000000000..5c865acaf
--- /dev/null
+++ b/simulation/interfaces/__init__.py
@@ -0,0 +1,4 @@
+# Copyright 2023 MosaicML Streaming authors
+# SPDX-License-Identifier: Apache-2.0
+
+"""Interfaces for streaming simulation."""
diff --git a/simulation/launcher.py b/simulation/launcher.py
index 2109a20f4..9da15bd83 100644
--- a/simulation/launcher.py
+++ b/simulation/launcher.py
@@ -10,7 +10,5 @@
 def launch_simulation_ui():
     """Launch the simulation UI."""
     absolute_cwd_path = os.path.dirname(os.path.abspath(__file__))
-    sim_file_relative_path = 'interfaces/sim_ui.py'
-    absolute_sim_path = os.path.join(absolute_cwd_path, sim_file_relative_path)
-    print(absolute_sim_path)
+    absolute_sim_path = os.path.join(absolute_cwd_path, 'interfaces', 'sim_ui.py')
     subprocess.run(['streamlit', 'run', absolute_sim_path])
diff --git a/streaming/_version.py b/streaming/_version.py
index 50b578b8f..407dcdefe 100644
--- a/streaming/_version.py
+++ b/streaming/_version.py
@@ -3,4 +3,4 @@
 
 """The Streaming Version."""
 
-__version__ = '0.7.0'
+__version__ = '0.7.1'