Added a placeholder class.

{{cookiecutter.package_name}}/docs/source/reports.rst

@@ -23,4 +23,4 @@ Report       Description
 ============ ===
 
 .. _Coveralls: https://coveralls.io/github/{{ cookiecutter.github_username }}/{{ cookiecutter.package_name }}
-.. _Landscape: https://landscape.io/github/{{ cookiecutter.github_username }}/{{ cookiecutter.package_name }}/master
+.. _Landscape: https://landscape.io/github/{{ cookiecutter.github_username }}/{{ cookiecutter.package_name }}

{{cookiecutter.package_name}}/{{cookiecutter.package_name}}/placeholder.py

@@ -0,0 +1,62 @@
+# -*- coding: utf-8 -*-
+
+from abc import ABCMeta, abstractmethod
+
+"""
+Placeholder classes.
+
+Replace this module for the actual code.
+"""
+
+__author__ = '{{ cookiecutter.developer_name }}'
+__license__ = 'MIT'
+
+
+class AbstractPlaceholder(object):
+    """
+    Placeholde for an abstract class.
+    """
+    __metaclass__ = ABCMeta
+
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def method(self):
+        """
+        An abstract method.
+        """
+        raise NotImplementedError('The roll method must be implemented')
+
+
+class Placeholder(AbstractPlaceholder):
+    """
+    An extension of the abstract placeholder.
+    """
+
+    def __init__(self, data):
+        super(Placeholder, self).__init__()
+        self._field = data
+
+    def __str__(self):
+        return '%s' % self.field
+
+    def __repr__(self):
+        return '<class %s>(field=%r)' % \
+               (self.__class__.__name__, self.field)
+
+    @property
+    def field(self):
+        """
+        A field in the placeholder class.
+
+        :return: the field content
+        """
+        return self._field
+
+    @field.setter
+    def field(self, field):
+        self._field = field
+
+    def method(self):
+        pass