old_contents: from github2.core import GithubCommand, BaseData, Attribute, DateAttribute
  
  class Issue(BaseData):
      position = Attribute("The position of this issue in a list.")
      number = Attribute("The issue number (unique for project).")
      votes = Attribute("Number of votes for this issue.")
      body = Attribute("The full description for this issue.")
      title = Attribute("Issue title.")
      user = Attribute("The username of the user that created this issue.")
      state = Attribute("State of this issue. Can be ``open`` or ``closed``.")
      labels = Attribute("Labels associated with this issue.")
      created_at = DateAttribute("The date this issue was created.")
      closed_at = DateAttribute("The date this issue was closed.")
      updated_at = DateAttribute("The date when this issue was last updated.")
  
      def __repr__(self):
          return "<Issue: %s>" % self.title
  
  
  class Issues(GithubCommand):
      domain = "issues"
  
      def list(self, project, state="open"):
          """Get all issues for project' with state'.
  
          ``project`` is a string with the project owner username and repository
          name separated by ``/`` (e.g. ``ask/pygithub2``).
          ``state`` can be either ``open`` or ``closed``.
          """
          return self.get_values("list", project, state, filter="issues",
                                 datatype=Issue)
  
      def show(self, project, number):
          """Get all the data for issue by issue-number."""
          return self.get_value("show", project, str(number),
                                filter="issue", datatype=Issue)
  
      def open(self, project, title, body):
          """Open up a new issue."""
          issue_data = {"title": title, "body": body}
          return self.get_value("open", project, post_data=issue_data,
                                filter="issue", datatype=Issue)
  
      def close(self, project, number):
          return self.get_value("close", project, str(number), filter="issue",
                                datatype=Issue)
  
      def add_label(self, project, number, label):
          return self.make_request("label/add", project, label, str(number),
                                   filter="labels")
  
      def remove_label(self, project, number, label):
          return self.make_request("label/remove", project, label, str(number),
                                   filter="labels")
  
new_contents: from github2.core import GithubCommand, BaseData, Attribute, DateAttribute
  
  class Issue(BaseData):
      position = Attribute("The position of this issue in a list.")
      number = Attribute("The issue number (unique for project).")
      votes = Attribute("Number of votes for this issue.")
      body = Attribute("The full description for this issue.")
      title = Attribute("Issue title.")
      user = Attribute("The username of the user that created this issue.")
      state = Attribute("State of this issue. Can be ``open`` or ``closed``.")
      labels = Attribute("Labels associated with this issue.")
      created_at = DateAttribute("The date this issue was created.")
      closed_at = DateAttribute("The date this issue was closed.")
      updated_at = DateAttribute("The date when this issue was last updated.")
  
      def __repr__(self):
          return "<Issue: %s>" % self.title
  
  
  class Issues(GithubCommand):
      domain = "issues"
  
      def list(self, project, state="open"):
          """Get all issues for project' with state'.
  
          ``project`` is a string with the project owner username and repository
          name separated by ``/`` (e.g. ``ask/pygithub2``).
          ``state`` can be either ``open`` or ``closed``.
          """
          return self.get_values("list", project, state, filter="issues",
                                 datatype=Issue)
  
      def show(self, project, number):
          """Get all the data for issue by issue-number."""
          return self.get_value("show", project, str(number),
                                filter="issue", datatype=Issue)
  
      def open(self, project, title, body):
          """Open up a new issue."""
          issue_data = {"title": title, "body": body}
          return self.get_value("open", project, post_data=issue_data,
                                filter="issue", datatype=Issue)
  
      def close(self, project, number):
          return self.get_value("close", project, str(number), filter="issue",
                                datatype=Issue)
  
      def add_label(self, project, number, label):
          return self.make_request("label/add", project, label, str(number),
                                   filter="labels")
  
      def remove_label(self, project, number, label):
          return self.make_request("label/remove", project, label, str(number),
                                   filter="labels")
  
      def comment(self, project, number, comment):
          """Comment on an issue."""
          comment_data = {'comment': comment}
          return self.make_request("comment", project, str(number),
                                   post_data=comment_data,
                                   filter='comment')
  
subject: Add the ability to comment on issues.