Drop sqlalchemy

src/hellocomputer/auth.py

@@ -1,8 +1,17 @@
 from starlette.requests import Request
+
 from .config import settings
 
 
 def get_user(request: Request) -> dict:
+    """_summary_
+
+    Args:
+        request (Request): _description_
+
+    Returns:
+        dict: _description_
+    """
     if settings.auth:
         return request.session.get("user")
     else:
@@ -10,6 +19,14 @@ def get_user(request: Request) -> dict:
 
 
 def get_user_email(request: Request) -> str:
+    """_summary_
+
+    Args:
+        request (Request): _description_
+
+    Returns:
+        str: _description_
+    """
     if settings.auth:
         return request.session.get("user").get("email")
     else:

src/hellocomputer/db/__init__.py

@@ -1,7 +1,8 @@
 from enum import StrEnum
 from pathlib import Path
 
-from sqlalchemy import create_engine, text
+import duckdb
+from sqlalchemy import create_engine
 
 
 class StorageEngines(StrEnum):
@@ -19,13 +20,11 @@ class DDB:
         bucket: str | None = None,
         **kwargs,
     ):
-        self.engine = create_engine(
-            "duckdb:///:memory:",
-            connect_args={
-                "preload_extensions": ["https", "spatial"],
-                "config": {"memory_limit": "300mb"},
-            },
-        )
+        self.db = duckdb.connect(":memory:")
+        # Assume extension autoloading
+        # self.db.sql("load httpfs")
+        # self.db.sql("load spatial")
+        self.storage_engine = storage_engine
         self.sheets = tuple()
         self.loaded = False
 
@@ -37,18 +36,12 @@ class DDB:
                     bucket is not None,
                 )
             ):
-                with self.engine.connect() as conn:
-                    conn.execute(
-                        text(
-                            f"""
+                self.db.sql(f"""
                     CREATE SECRET (
                     TYPE GCS,
                     KEY_ID '{gcs_access}',
                     SECRET '{gcs_secret}')
-                    """
-                        )
-                    )
-                    conn.execute(text("LOAD httpfs"))
+                    """)
 
                 self.path_prefix = f"gs://{bucket}"
             else:
@@ -65,6 +58,9 @@ class DDB:
                     "With local storage you need to provide the path keyword argument"
                 )
 
+    def query(self, sql, *args, **kwargs):
+        return self.db.query(sql, *args, **kwargs)
+
     @property
-    def db(self):
-        return self.engine.raw_connection()
+    def engine(self):
+        return create_engine("duckdb:///:memory:")

src/hellocomputer/db/sessions.py

@@ -71,10 +71,13 @@ class SessionDB(DDB):
 
         try:
             self.db.query(f"copy metadata to '{self.path_prefix}/metadata.csv'")
-        except duckdb.duckdb.IOException:
+        except duckdb.duckdb.IOException as e:
             # Create the folder
-            os.makedirs(self.path_prefix)
-            self.db.query(f"copy metadata to '{self.path_prefix}/metadata.csv'")
+            if self.storage_engine == StorageEngines.local:
+                os.makedirs(self.path_prefix)
+                self.db.query(f"copy metadata to '{self.path_prefix}/metadata.csv'")
+            else:
+                raise e
 
         for sheet in self.sheets:
             self.db.query(f"copy {sheet} to '{self.path_prefix}/{sheet}.csv'")
@@ -157,9 +160,6 @@ class SessionDB(DDB):
             + [self.table_schema(sheet) for sheet in self.sheets]
         )
 
-    def query(self, sql, *args, **kwargs):
-        return self.db.query(sql, *args, **kwargs)
-
     def query_prompt(self, user_prompt: str) -> str:
         query = (
             f"The following sentence is the description of a query that "

src/hellocomputer/models.py

@@ -1,8 +1,14 @@
 from enum import StrEnum
+from pathlib import Path
 
+from anyio import open_file
 from langchain_core.prompts import PromptTemplate
 from langchain_fireworks import Fireworks
 
+import hellocomputer
+
+PROMPT_DIR = Path(hellocomputer.__file__).parent / "prompts"
+
 
 class AvailableModels(StrEnum):
     llama3_70b = "accounts/fireworks/models/llama-v3-70b-instruct"
@@ -12,23 +18,19 @@ class AvailableModels(StrEnum):
     firefunction_2 = "accounts/fireworks/models/firefunction-v2"
 
 
-general_prompt = """
-You're a helpful assistant. Perform the following tasks:
+class Prompts:
+    @classmethod
+    async def getter(cls, name):
+        async with await open_file(PROMPT_DIR / f"{name}.md") as f:
+            return await f.read()
 
-----
-{query}
-----
-"""
+    @classmethod
+    async def general(cls):
+        return await cls.getter("general_prompt")
 
-sql_prompt = """
-You're a SQL expert. Write a query using the duckdb dialect. The goal of the query is the following:
-
-----
-{query}
-----
-
-Return only the sql statement without any additional text.
-"""
+    @classmethod
+    async def sql(cls):
+        return await cls.getter("sql_prompt")
 
 
 class Chat:
@@ -59,14 +61,14 @@ class Chat:
         )
 
     async def eval(self, task):
-        prompt = PromptTemplate.from_template(general_prompt)
+        prompt = PromptTemplate.from_template(await Prompts.general())
 
         response = await self.model.ainvoke(prompt.format(query=task))
         self.responses.append(response)
         return self
 
     async def sql_eval(self, question):
-        prompt = PromptTemplate.from_template(sql_prompt)
+        prompt = PromptTemplate.from_template(await Prompts.sql())
 
         response = await self.model.ainvoke(prompt.format(query=question))
         self.responses.append(response)

src/hellocomputer/prompts/README.md

@@ -0,0 +1 @@
+Storage for separate prompts

src/hellocomputer/prompts/general_prompt.md

@@ -0,0 +1,3 @@
+You're a helpful assistant. Perform the following tasks:
+
+* {query}

src/hellocomputer/prompts/sql_prompt.md

@@ -0,0 +1,5 @@
+You're a SQL expert. Write a query using the duckdb dialect. The goal of the query is the following:
+
+* {query}
+
+Return only the sql statement without any additional text.

src/hellocomputer/routers/sessions.py

@@ -8,8 +8,8 @@ from starlette.requests import Request
 from hellocomputer.db import StorageEngines
 from hellocomputer.db.users import OwnershipDB
 
-from ..config import settings
 from ..auth import get_user_email
+from ..config import settings
 
 # Scheme for the Authorization header
 

test/test_prompts.py

@@ -0,0 +1,15 @@
+import pytest
+from hellocomputer.models import Prompts
+from langchain.prompts import PromptTemplate
+
+
+@pytest.mark.asyncio
+async def test_get_general_prompt():
+    general: str = await Prompts.general()
+    assert general.startswith("You're a helpful assistant")
+
+
+@pytest.mark.asyncio
+async def test_general_templated():
+    prompt = PromptTemplate.from_template(await Prompts.general())
+    assert "Do as I say" in prompt.format(query="Do as I say")