---
title: "Discussion on \"Google ADK DatabaseSessionService: \"TypeError: fromisoformat: argument must be str\" on SQLite\" | Hashnode"
description: "Discussion on \"Google ADK DatabaseSessionService: \"TypeError: fromisoformat: argument must be str\" on SQLite\". get_session() fails when a SQLite session table holds float timestamps. Why it happens, how to reproduce it, and the version that handles it."
url: "https://hashnode.com/posts/google-adk-databasesessionservice-fromisoformat-argument-must-be-str/6af49264fcbd5f47dc594f36"
---

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# [Google ADK DatabaseSessionService: "TypeError: fromisoformat: argument must be str" on SQLite](https://memorysync.hashnode.dev/google-adk-databasesessionservice-fromisoformat-argument-must-be-str?utm_source=hashnode&utm_medium=feed)

get\_session() fails when a SQLite session table holds float timestamps. Why it happens, how to reproduce it, and the version that handles it.

15h ago · 6 min read · memorysync.hashnode.dev  
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Building MemorySync (memorysync.io) — persistent memory infrastructure for AI agents, Cursor, and Claude Code.

Building MemorySync (memorysync.io) — persistent memory infrastructure for AI agents, Cursor, and Claude Code.

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