old_contents: import datetime
  
  from pepper.app import DB
  
  
  class Team(DB.Model):
      __tablename__ = 'teams'
  
      id = DB.Column(DB.Integer, primary_key=True)
      tname = DB.Column(DB.String(255), unique=True)
      users = DB.relationship("User", back_populates="team")
      time_created = DB.Column(DB.DateTime)
  
      def __init__(self, name, creator):
          self.tname = name
          self.users = [creator]
          self.time_created = datetime.utcnow()
  
new_contents: from datetime import datetime
  
  from pepper.app import DB
  
  
  class Team(DB.Model):
      __tablename__ = 'teams'
  
      id = DB.Column(DB.Integer, primary_key=True)
      tname = DB.Column(DB.String(255), unique=True)
      users = DB.relationship("User", back_populates="team")
      time_created = DB.Column(DB.DateTime)
  
      def __init__(self, name, creator):
          self.tname = name
          self.users = [creator]
          self.time_created = datetime.utcnow()
  
subject: Fix datetime import