Fix SyntaxError: f-string: unmatched '{' error #1259
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I have fixed the error in return f"b:{json.dumps({ "toolCallId": chunk.toolCallId, "toolName": chunk.toolName })}\n"
SyntaxError: f-string: unmatched '{'
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WalkthroughThe pull request introduces minor stylistic changes to the Changes
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WalkthroughThe update addresses a SyntaxError in the Changes
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| elif chunk.type == "tool-result": | ||
| return f"a:{json.dumps({ "toolCallId": chunk.tool_call_id, "result": chunk.result })}\n" | ||
| return f'a:{json.dumps({ "toolCallId": chunk.tool_call_id, "result": chunk.result })}\n' |
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🛠️ Refactor suggestion
Apply consistent f-string handling and consider refactoring
This line needs the same fix as the others. Additionally, given the similar pattern across all three changes, consider extracting this into a helper method.
Immediate fix:
- return f'a:{json.dumps({ "toolCallId": chunk.tool_call_id, "result": chunk.result })}\n'
+ data = {"toolCallId": chunk.tool_call_id, "result": chunk.result}
+ return f'a:{json.dumps(data)}\n'Consider this broader refactoring to reduce duplication:
def _encode_tool_data(self, prefix: str, data: dict) -> str:
return f'{prefix}:{json.dumps(data)}\n'Then use it like:
# Example usage:
return self._encode_tool_data('b', {
"toolCallId": chunk.tool_call_id,
"toolName": chunk.tool_name
})| elif chunk.type == "tool-call-delta": | ||
| return f"c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n" | ||
| return f'c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n' |
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🛠️ Refactor suggestion
Apply consistent f-string handling
Similar to the previous case, this line would benefit from separating the JSON structure from the f-string interpolation.
Apply this change for consistency:
- return f'c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n'
+ data = {"toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta}
+ return f'c:{json.dumps(data)}\n'📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| return f'c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n' | |
| data = {"toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta} | |
| return f'c:{json.dumps(data)}\n' |
| @@ -15,11 +15,11 @@ def encode_chunk(self, chunk: AssistantStreamChunk) -> str: | |||
| if chunk.type == "text-delta": | |||
| return f"0:{json.dumps(chunk.text_delta)}\n" | |||
| elif chunk.type == "tool-call-begin": | |||
| return f"b:{json.dumps({ "toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name })}\n" | |||
| return f'b:{json.dumps({ "toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name })}\n' | |||
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🛠️ Refactor suggestion
Fix potential f-string parsing issues
While changing quotes helps, the current implementation might still be prone to f-string parsing issues due to nested curly braces. A more robust approach would be to separate the JSON creation from the f-string interpolation.
Here's a clearer and more maintainable solution:
- return f'b:{json.dumps({ "toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name })}\n'
+ data = {"toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name}
+ return f'b:{json.dumps(data)}\n'📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| return f'b:{json.dumps({ "toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name })}\n' | |
| data = {"toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name} | |
| return f'b:{json.dumps(data)}\n' |
| return f'b:{json.dumps({ "toolCallId": chunk.tool_call_id, "toolName": chunk.tool_name })}\n' | ||
| elif chunk.type == "tool-call-delta": | ||
| return f"c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n" | ||
| return f'c:{json.dumps({ "toolCallId": chunk.tool_call_id, "argsTextDelta": chunk.args_text_delta })}\n' | ||
| elif chunk.type == "tool-result": | ||
| return f"a:{json.dumps({ "toolCallId": chunk.tool_call_id, "result": chunk.result })}\n" | ||
| return f'a:{json.dumps({ "toolCallId": chunk.tool_call_id, "result": chunk.result })}\n' |
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💡 Codebase verification
Tests needed for data stream serialization
The codebase lacks test coverage for the data stream serialization functionality. You should add unit tests to verify:
- Text delta encoding (
type == "text-delta") - Tool call begin encoding (
type == "tool-call-begin") - Tool call delta encoding (
type == "tool-call-delta") - Tool result encoding (
type == "tool-result") - Special character handling in all JSON fields
- Proper newline handling in the encoded output
- Media type return value
- Async stream encoding
🔗 Analysis chain
Verify the changes with unit tests
While the syntax fixes look correct, please ensure these changes are covered by unit tests, especially testing with various types of tool names, IDs, and results that might contain special characters.
Let's check for existing tests:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Look for test files related to data_stream
fd -e py test_data_stream
Length of output: 27
Script:
#!/bin/bash
# Let's try a broader search for test files in the python/assistant-stream directory
fd -e py test python/assistant-stream
# Also search for imports of data_stream to see test coverage
rg "from assistant_stream.serialization.data_stream" -A 5
Length of output: 715
Script:
#!/bin/bash
# Let's search for test files in a different way and look for any tests related to serialization
rg -l "test.*serialization" python/assistant-stream/tests
# Also check if there are any test files directly in the package directory
fd -e py . python/assistant-stream/tests
# Let's also look at the actual implementation to understand the test requirements better
cat python/assistant-stream/src/assistant_stream/serialization/data_stream.py
Length of output: 1854
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Thank you so much, this is great! |
🔍 Review Summary
Purpose:
encode_chunkmethod to prevent runtime errors.Changes:
data_stream.pyfor accurate JSON data formatting.Impact:
Original Description
No existing description found