Added app.py

.gitignore

@@ -0,0 +1 @@
+.idea/*

app.py

@@ -0,0 +1,12 @@
+from flask import Flask
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def hello_world():  # put application's code here
+    return 'Hello World!'
+
+
+if __name__ == '__main__':
+    app.run()