# Standalone Memory (/memory/working-with-memories/standalone-memory)



## Code [#code]

```python title="standalone_memory.py"
from agno.db.postgres import PostgresDb
from agno.memory import MemoryManager, UserMemory
from rich.pretty import pprint

db_url = "postgresql+psycopg://ai:ai@localhost:5532/ai"

memory = MemoryManager(db=PostgresDb(db_url=db_url))

# Add a memory for the default user
memory.add_user_memory(
    memory=UserMemory(memory="The user's name is John Doe", topics=["name"]),
)
print("Memories:")
pprint(memory.get_user_memories())

# Add memories for Jane Doe
jane_doe_id = "jane_doe@example.com"
print(f"\nUser: {jane_doe_id}")
memory_id_1 = memory.add_user_memory(
    memory=UserMemory(memory="The user's name is Jane Doe", topics=["name"]),
    user_id=jane_doe_id,
)
memory_id_2 = memory.add_user_memory(
    memory=UserMemory(memory="She likes to play tennis", topics=["hobbies"]),
    user_id=jane_doe_id,
)
memories = memory.get_user_memories(user_id=jane_doe_id)
print("Memories:")
pprint(memories)

# Delete a memory
print("\nDeleting memory")
assert memory_id_2 is not None
memory.delete_user_memory(user_id=jane_doe_id, memory_id=memory_id_2)
print("Memory deleted\n")
memories = memory.get_user_memories(user_id=jane_doe_id)
print("Memories:")
pprint(memories)

# Replace a memory
print("\nReplacing memory")
assert memory_id_1 is not None
memory.replace_user_memory(
    memory_id=memory_id_1,
    memory=UserMemory(memory="The user's name is Jane Mary Doe", topics=["name"]),
    user_id=jane_doe_id,
)
print("Memory replaced")
memories = memory.get_user_memories(user_id=jane_doe_id)
print("Memories:")
pprint(memories)
```

## Usage [#usage]

<Steps>
    <Step title="Set up your virtual environment">
      <CodeBlockTabs defaultValue="Mac">
        <CodeBlockTabsList>
          <CodeBlockTabsTrigger value="Mac">
            Mac
          </CodeBlockTabsTrigger>

          <CodeBlockTabsTrigger value="Windows">
            Windows
          </CodeBlockTabsTrigger>
        </CodeBlockTabsList>

        <CodeBlockTab value="Mac">
          ```bash
          uv venv --python 3.12
          source .venv/bin/activate
          ```
        </CodeBlockTab>

        <CodeBlockTab value="Windows">
          ```bash
          uv venv --python 3.12
          .venv\Scripts\activate
          ```
        </CodeBlockTab>
      </CodeBlockTabs>
    </Step>

  <Step title="Install dependencies">
    ```bash
    uv pip install -U agno sqlalchemy 'psycopg[binary]'
    ```
  </Step>

    <Step title="Run PgVector">
      <CodeBlockTabs defaultValue="macOS / Linux">
        <CodeBlockTabsList>
          <CodeBlockTabsTrigger value="macOS / Linux">
            macOS / Linux
          </CodeBlockTabsTrigger>

          <CodeBlockTabsTrigger value="Windows">
            Windows
          </CodeBlockTabsTrigger>
        </CodeBlockTabsList>

        <CodeBlockTab value="macOS / Linux">
          ```bash
          docker run -d \
            -e POSTGRES_DB=ai \
            -e POSTGRES_USER=ai \
            -e POSTGRES_PASSWORD=ai \
            -e PGDATA=/var/lib/postgresql \
            -v pgvolume:/var/lib/postgresql \
            -p 5532:5432 \
            --name pgvector \
            agnohq/pgvector:18
          ```
        </CodeBlockTab>

        <CodeBlockTab value="Windows">
          ```powershell
          docker run -d `
            -e POSTGRES_DB=ai `
            -e POSTGRES_USER=ai `
            -e POSTGRES_PASSWORD=ai `
            -e PGDATA=/var/lib/postgresql `
            -v pgvolume:/var/lib/postgresql `
            -p 5532:5432 `
            --name pgvector `
            agnohq/pgvector:18
          ```
        </CodeBlockTab>
      </CodeBlockTabs>
    </Step>

  <Step title="Run Example">
    <CodeBlockTabs defaultValue="Mac/Linux">
      <CodeBlockTabsList>
        <CodeBlockTabsTrigger value="Mac/Linux">
          Mac/Linux
        </CodeBlockTabsTrigger>

        <CodeBlockTabsTrigger value="Windows">
          Windows
        </CodeBlockTabsTrigger>
      </CodeBlockTabsList>

      <CodeBlockTab value="Mac/Linux">
        ```bash
        python standalone_memory.py
        ```
      </CodeBlockTab>

      <CodeBlockTab value="Windows">
        ```bash
        python standalone_memory.py
        ```
      </CodeBlockTab>
    </CodeBlockTabs>
  </Step>
</Steps>