refactor and clean up code with pep8

Author: Zaytsev Dmitriy

projects/Todo_app/app.py

@@ -1,77 +1,67 @@
-from flask import Flask, render_template,url_for, request, redirect
+from flask import Flask, render_template, url_for, request, redirect
 from flask_sqlalchemy import SQLAlchemy
 from datetime import datetime
 
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
-app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///test.db"
+app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
 db = SQLAlchemy(app)
 
 
-
-
-
-
 class Todo(db.Model):
- id=db.Column(db.Integer, primary_key=True)
- content=db.Column(db.String(200),nullable=False)
- completed=db.Column(db.Integer,default=0)
- pub_date = db.Column(db.DateTime, nullable=False,
- default=datetime.utcnow)
- def __repr__(self):
- return '<Task %r>'%self.id
-
-
-
+ id = db.Column(db.Integer, primary_key=True)
+ content = db.Column(db.String(200), nullable=False)
+ completed = db.Column(db.Integer, default=0)
+ pub_date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
 
+ def __repr__(self):
+ return "<Task %r>" % self.id
 
 
-@app.route('/',methods=['POST','GET'])
+@app.route("/", methods=["POST", "GET"])
 def index():
- if request.method=="POST":
- task_content= request.form['task']
- new_task=Todo(content=task_content)
-
+ if request.method == "POST":
+ task_content = request.form["task"]
+ new_task = Todo(content=task_content)
  try:
- db.session.add(new_task) 
+ db.session.add(new_task)
  db.session.commit()
- return redirect('/')
+ return redirect("/")
  except:
- return 'There is an issue'
+ return "There is an issue"
  else:
- tasks=Todo.query.order_by(Todo.pub_date).all()
- return render_template('index.html',tasks=tasks)
+ tasks = Todo.query.order_by(Todo.pub_date).all()
+ return render_template("index.html", tasks=tasks)
+
 
-@app.route('/delete/<int:id>')
+@app.route("/delete/<int:id>")
 def delete(id):
- task=Todo.query.get_or_404(id)
+ task = Todo.query.get_or_404(id)
  try:
  db.session.delete(task)
  db.session.commit()
- return redirect('/')
+ return redirect("/")
  except:
  return "This is an Problem while deleting"
 
-@app.route('/update/<int:id>',methods=['POST','GET'])
+
+@app.route("/update/<int:id>", methods=["POST", "GET"])
 def update(id):
- task=Todo.query.get_or_404(id)
- if request.method=="POST":
- task.content= request.form['task']
- 
+ task = Todo.query.get_or_404(id)
+ if request.method == "POST":
+ task.content = request.form["task"]
 
  try:
- 
  db.session.commit()
- return redirect('/')
+ return redirect("/")
  except:
- return 'There is an issue'
+ return "There is an issue"
  else:
- tasks=Todo.query.order_by(Todo.pub_date).all()
- 
- return render_template('index.html', update_task=task,tasks=tasks)
+ tasks = Todo.query.order_by(Todo.pub_date).all()
 
+ return render_template("index.html", update_task=task, tasks=tasks)
 
 
+if __name__ == "__main__":
+ app.run(debug=True)
 
-if __name__=="__main__":
- app.run(debug=True)