Skip to main content

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


Release history Release notifications | RSS feed

This version

0.1

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

sqlitelist-0.1.tar.gz (4.2 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page