style: format code with autopep8

Format code with autopep8

This commit fixes the style issues introduced in 2f724d9 according to the output
from Autopep8.

Details: None

Author: deepsource-autofix[bot]

BMI Calculator/app.py

@@ -2,11 +2,13 @@
 
 app = Flask(__name__)
 
+
 def calculate_bmi(weight, height):
     height_in_meters = height / 100
     bmi = weight / (height_in_meters ** 2)
     return bmi
 
+
 def interpret_bmi(bmi):
     if bmi < 18.5:
         return "Underweight"
@@ -17,6 +19,7 @@ def interpret_bmi(bmi):
     else:
         return "Obese"
 
+
 @app.route("/", methods=["GET", "POST"])
 def index():
     if request.method == "POST":
@@ -30,5 +33,6 @@ def index():
 
     return render_template("index.html")
 
+
 if __name__ == "__main__":
     app.run(debug=True)