sdk==0.1.37

langgraph-sdk 0.1.37

Summary of Changes

• Added new EventSource class to handle Server-Sent Events (SSE) with better line splitting according to the SSE specification
• Improved the handling of SSE events in the Client.stream methods to ensure proper parsing of newlines (\n, \r, \r\n)

Detailed Changes

EventSource

• Added a new EventSource class that extends the httpx_sse.EventSource class with custom implementations for SSE event parsing
• Implemented more robust line splitting that correctly handles different types of newline characters (\n, \r, \r\n) as per the SSE specification
• Added utility functions aiter_lines_raw and iter_lines_raw to process response streams properly
• Created BytesLineDecoder for incremental line parsing with proper newline handling

Client.stream

• Modified both sync and async versions of the stream method to use the new custom EventSource class
• Updated SSE event iteration to work with the improved line splitting implementation
• These changes ensure more reliable event streaming, especially with servers that use different line ending conventions