fix: #2081 Redis SSL Connection Error with redis-py v7

[yju0808]

Fix Redis SSL Connection Error with redis-py

Summary

This PR fixes a TypeError that occurs when using RedisSession.from_url() with SSL-enabled Redis URLs (rediss://) and redis-py 7.x.

Problem

RedisSession.from_url() currently adds ssl=True to kwargs when detecting a rediss:// URL. This causes a TypeError because AbstractConnection.__init__() does not accept the ssl parameter.

Error:

TypeError: AbstractConnection.__init__() got an unexpected keyword argument 'ssl'

Changes

• Removed: The line that adds ssl=True to redis_kwargs when rediss:// is detected
• Removed: import of urlparse (no longer used)
• Reason: In redis-py 7.x, the rediss:// URL scheme automatically triggers SSL handling via parse_url(), making the explicit ssl=True parameter unnecessary and incompatible

Related Issue

Fixes #2081

[seratch]

To make things simpler, I'd like to change the minimal requreid version of redis client to ">=7". Can you apply the change as well?

[yju0808]

To make things simpler, I'd like to change the minimal requreid version of redis client to ">=7". Can you apply the change as well?

@seratch Updated!
I’ve updated the minimum required Redis version to >=7 as requested.

Changes included:
-Updated pyproject.toml: redis>=6.4.0 → redis>=7
-Regenerated uv.lock: resolved to redis==7.0.1

Let me know if anything else is needed!

[seratch]

Can you fix the mypy errors?

Run make mypy
  make mypy
  shell: /usr/bin/bash -e {0}
  env:
    UV_FROZEN: 1
    UV_CACHE_DIR: /home/runner/work/_temp/setup-uv-cache
uv run mypy . --exclude site
src/agents/extensions/memory/redis_session.py:258: error: Incompatible types in "await" (actual type "Awaitable[bool] | bool", expected type "Awaitable[Any]")  [misc]
tests/extensions/memory/test_redis_session.py:495: error: Incompatible types in "await" (actual type "Awaitable[bool] | bool", expected type "Awaitable[Any]")  [misc]
tests/extensions/memory/test_redis_session.py:502: error: Incompatible types in "await" (actual type "Awaitable[bool] | bool", expected type "Awaitable[Any]")  [misc]
tests/extensions/memory/test_redis_session.py:784: error: Incompatible types in "await" (actual type "Awaitable[bool] | bool", expected type "Awaitable[Any]")  [misc]
Found 4 errors in 2 files (checked 366 source files)
make: *** [Makefile:20: mypy] Error 1
Error: Process completed with exit code 2.

[yju0808]

@seratch Fixed!

I've resolved all mypy errors by adding # type: ignore[misc] comments to the Redis async ping() calls.

Changes included:
-Added type: ignore[misc] comments for ping() calls in redis_session.py
-Added the same ignores for corresponding assertions in test_redis_session.py

Root cause:
The redis-py library defines return types as Union[Awaitable[T], T] for sync/async compatibility, but mypy cannot infer that redis.asyncio.Redis always returns Awaitable[T] in async context.

Note:
The codebase already uses the same type: ignore[misc] pattern for other Redis async methods (e.g., lrange() and rpop()), so I followed the existing convention for consistency.