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SQLite3 wrapper with a list-like interface

Project description

==========
sqlitelist
==========
sqlitelist is a SQLite3 wrapper with a python list-like interface. It comes with one purpose - to keep your data if it bigger than your RAM size.

.. code-block:: python
>>> from sqlitelist import open
>>> with open('db') as lst:
... lst.append('hello')
... lst.extend(['world', {}])
>>> print(len(lst))
>>> for item in lst:
>>> print(item)


===================================
There is some performance features
===================================

.. code-block:: python
>>> from sqlitelist import open
>>> with open('db', journal_mode='MEMORY', autocommit=False) as lst:
... for _ in range(1000):
... lst.extend(['some', 'data', {'key': 'value', 'another key': 1}])
... lst.commit()
>>> # Do not forget to commit your changes if autocommit is off.
>>> lst.flush() # For flush all your data without removing a database file.


========
Features
========
Values can be any pickable objects.
Support for slices (step and negative indices aren't supported [yet])

.. code-block:: python
>>> with open('db') as lst:
... print(lst[1:200])
... print(lst[:50])
... print(lst[50:])

Support for getting items by it's index

.. code-block:: python
>>> with open('db') as lst:
... lst[5]
... lst[-3]

Support for pop, append and extend methods

.. code-block:: python
>>> with open('db') as lst:
... lst.pop()
... lst.pop(50) # Pop the element in the 51th place

Support for delete (indices and slices with no negative values)

.. code-block:: python
>>> with open('db') as lst:
... del lst[0]
... del lst[-50]
... del lst[:50]
... del lst[50:]


Support for iteration (no multithreading support!)

.. code-block:: python
>>> with open('db') as lst:
... for item in lst:
... print(item)

Project details


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This version

0.1

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