diff --git a/.gitignore b/.gitignore
index f5e96db..0540009 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-venv
\ No newline at end of file
+__pycache__/
+venv/
\ No newline at end of file
diff --git a/dev-requirements.txt b/dev-requirements.txt
new file mode 100644
index 0000000..4f43f3d
--- /dev/null
+++ b/dev-requirements.txt
@@ -0,0 +1,2 @@
+pytest==7.0.1
+pytest-doc==0.0.1
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..ff7bfcd
--- /dev/null
+++ b/main.py
@@ -0,0 +1,6 @@
+from flask import Flask
+
+app = Flask(__name__)
+@app.route("/")
+def hello_world():
+    return "<p>Hello, world!</p>"
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..fb0dec5
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+Flask==2.0.3
\ No newline at end of file