diff --git a/.python-version b/.python-version
new file mode 100644
index 00000000..bd28b9c5
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.9
diff --git a/04_python_practice/02_Python_Intermediate/Error_Handling_in_python.ipynb b/04_python_practice/02_Python_Intermediate/Error_Handling_in_python.ipynb
index 44547713..48df8604 100644
--- a/04_python_practice/02_Python_Intermediate/Error_Handling_in_python.ipynb
+++ b/04_python_practice/02_Python_Intermediate/Error_Handling_in_python.ipynb
@@ -495,7 +495,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "id": "ee3feeb6",
    "metadata": {},
    "outputs": [],
@@ -565,7 +565,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "id": "459ba9f5",
    "metadata": {},
    "outputs": [
@@ -677,7 +677,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "de-week-1-python (3.9.6)",
    "language": "python",
    "name": "python3"
   },
@@ -691,7 +691,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.13"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,
diff --git a/main.py b/main.py
new file mode 100644
index 00000000..b1a0629b
--- /dev/null
+++ b/main.py
@@ -0,0 +1,6 @@
+def main():
+    print("Hello from de-week-1-python!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..d639509e
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,7 @@
+[project]
+name = "de-week-1-python"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.9"
+dependencies = []
diff --git a/uv.lock b/uv.lock
new file mode 100644
index 00000000..7e7f45b2
--- /dev/null
+++ b/uv.lock
@@ -0,0 +1,8 @@
+version = 1
+revision = 1
+requires-python = ">=3.9"
+
+[[package]]
+name = "de-week-1-python"
+version = "0.1.0"
+source = { virtual = "." }