PyInMemStore

PyInMemStore is a lightweight, in-memory data store written in Python. It provides a simple way to store and manipulate data structures such as strings, lists, sets, and sorted sets. The store offers thread-safe operations and supports key expiry, similar to Redis.

Features

Basic data types: Strings, Lists, Sets, and Sorted Sets.
Thread-safe operations.
Key expiry functionality.
Dynamic method dispatching based on data type.
Easy extensibility for additional data types and operations.

How to install

pip install pyinmem

Data Types and Operations

String

set(key, value, ttl=None): Set a string value under a key. Optionally, specify a Time-To-Live (TTL) in seconds.
get(key): Retrieve the string value for a given key.

List

lpush(key, value): Push a value to the beginning of a list at a given key.
rpop(key): Pop a value from the end of a list at a given key.
llen(key): Get the length of the list at a given key.

Set

sadd(key, *values): Add one or more values to a set at a given key.
srem(key, *values): Remove one or more values from a set at a given key.
smembers(key): Get all the members of the set at a given key.
sis_member(key, value): Check if a value is a member of the set at a given key.

Sorted Set

zadd(key, scores): Add one or more member-score pairs to a sorted set at a given key.
zrange(key, start, stop): Get a range of members from a sorted set at a given key, sorted by score.
zscore(key, member): Get the score of a member in a sorted set at a given key.

Usage

from pyinmemstore import PyInMemStore

store = PyInMemStore(save_data=True)


store.set('hello', 'world')
print(store.get('hello'))


store.lpush('mylist', 'hello')
store.lpush('mylist', 'world')
print(store.rpop('mylist'))


store.sadd('myset', 'hello', 'world')
print(store.smembers('myset'))


store.zadd('my_sorted_set', {'Alice': 100, 'Bob': 90})
print(store.zrange('my_sorted_set', 0, -1))
print(store.zscore('my_sorted_set', 'Alice'))

hamidrabedi/pyinmem