simple kv store

A simple in memory kv store in core lib python
Getting started · Run tests

Abstract

An in memory kv store in core lib python. Usable as an example for implementing a in memory kv store in python, where performance is not the main consideration. Transactions are implemented using a rudimentary state machine. the cli has been implemented using CMD.

Getting started

1. Installation

A recent python 3.8+ install is required. No dependencies to install.

The program can be started with:

python main.py

2. core Commands

1. SET a key value pair

   SET Key Value

2. GET a value related to a key.

   GET Key

3. UNSET (remove) a key value pair.

   UNSET Key

4. Return the count of values equal to a value.

   NUMEQUALTO Value

5. Begin a transaction.

   BEGIN

6. Commit a transaction, making it permanent. And exit the transaction.

   COMMIT

7. Revert a transaction, reverting back to the state at the beginning of the transaction. And exit the transaction.

   ROLLBACK

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3. helper commands

1. List commands

   ?

2. Help on specific command

   ? <command>

3. Return the total contents of the store

   LIST

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Tests

The tests can be started with:

python tests/tests.py

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