MemDB

An in-memory agnostic database for Python.

Change history

0.0.5

• The Dataset.to_str() method now has the limit parameter to define the number of lines that should be displayed.

• Added the Dataset.all() method to return all data, without applying any filters.

• Added the format parameter in the add_field() method. This parameter is passed to the method of the Schema class and is used by it to define a format for the new field created.

• Added date_format attribute to Dataset class. This attribute is used whenever values are entered in fields of type date or datetime to store the value in the intended format.

• Validation of values at insertion time. Fields of type date or datetime, when receiving a value of type str, check the string format. If it's a valid date, it converts to the date format defined in the field (as an field attribute of the Schema object) or defined in the date_format attribute of the dataset.

• Dataset now works as an iterator. Use foreach to loop through the lines.

• Dataset now has a date_out_format property where we define the format in which date-type fields should display their values when converted to string.

• Fixed the method that calculates the size of fields. Before I was calculating the size of the fields without considering the output formats when converting the fields to string.

0.0.4

• There was an attempt to make the Dataset schemaless. But usage has shown that there is no advantage to using schemaless dataset.

• Added private method Dataset.__set_schema() to set the schema in the dataset. If the method does not receive a schema, it takes care of instantiating one so that there is always a schema in the dataset.