Object structure in place

tablib/core.py

@@ -6,14 +6,124 @@
 # / /_  / /_/ / _  /_/ /_  /_/ //  __// /_/ /  
 # \__/  \__,_/  /_.___/ /_.___/ \___/ \__,_/   
 
+
+import csv
+
+
+
 __version__ = '0.0.2'
 __build__ = '0x000002'
 __author__ = 'Kenneth Reitz'
 __license__ = 'MIT'
 __copyright__ = 'Copyright 2010 Kenneth Reitz'
 
+__all__ = ['Dataset', 'source']
 
-def cheese():
+
+
+class Dataset(object):
+	"""Amazing Tabular Dataset object. """
+
+	def __init__(self, *args, **kwargs):
+
+		self._data = [].append(args)
+
+		try:
+		    self.headers = kwargs['headers']
+		except KeyError, why:
+			self.headers = None
+
+			
+	def __len__(self):
+		return self.height
+
+
+	def __getitem__(self, key):
+		return self._data[key]
+
+
+	def __setitem__(self, key, value):
+		self.validate(value)
+		self._data[key] = value
+
+
+	def __delitem__(self, key):
+		del self._data[key]
+
+		
+	def __repr__(self):
+		return '<dataset object>' 
+
+
+	def validate(self, row=None, safety=False):
+		"""Assures size of every row in dataset is of proper proportions."""
+		if row:
+			is_valid = (len(row) == self.width) if self.width else True
+		else:
+			is_valid = all((len(x)== self.width for x in self._data))
+
+		if is_valid:
+			return True
+
+		else:
+			if not safety:
+				raise InvalidDimensions
+			return False
+	
+	def digest(self):
+		"""Retruns digest information of dataset in human-readable format."""
+		pass
+
+
+	@property
+	def height(self):
+		"""Returns the height of the Dataset."""
+		return len(self._data)
+
+
+	@property
+	def width(self):
+		"""Returns the width of the Dataset."""
+		
+		try:
+		    len(self._data[0])
+		except Exception, why:
+		    raise why
+			
+
+	@property
+	def json(self):
+		pass
+
+		
+	@property
+	def yaml(self):
+		pass
+
+
+	@property
+	def csv(self):
+		pass
+
+
+	@property
+	def xls(self):
+		pass
+
+
+	def add_row(self, index=None):
+		pass
+
+	def del_row(self):
+		pass
+
+	def save(self):
+		pass
+
+class InvalidDimensions(Exception):
+	"Invalid size"
+
+
+def source():
 	"""docstring for import"""
-	pass
-
+	pass