Debugging at funtion level

[Majdoddin]

User description

This PR is based on the observation that ChatGPT is not able to do the computation necessary to calculate the output of the whole code for a given input (in web interface mode, it often resorts to generating and running a script).
Therefore three enhancements:

1. In the "Iterate on Public Tests" phase, keep a log of the call stack while running the code, and if the code output doesn't match the test output, the LLM should first analyse the log (in YAML):

• Check formatting of final output.
• For each function call check the parameters are valid,
• and check if function output is correct,
• and given an incorrect function output or a raised exception, what is its cause.
  Based on the analysis, the LLM should then generated the corrected code.

2. In "Initial Code Solution" phase, the LLM first generates a code structure, with function signatures, and comments according to the generated algorithm. In the next step, the LLM generates the function bodies and adds imports.
3. In the "Generate Additional AI Tests", the LLM generates test inputs to cover various challenging cases, sorted by difficulty. The test outputs are not generated, because, as discussed earlier, the LLM is not able to compute them. Special provision is needed to generate very long inputs necessary to test the runtime. This stage is not implemented yet.

The vision is to enable the LLM to connect to the debugger and run debugging sessions, with breakpoints, watches, ...

Comparison

I ran branch main and this PR on the same problem (see the attached logs). Both initially generated incorrect code, but the PR was able to successfully debug the code after 2 attempts (in total 9 LLM inferences), while the main could not get the correct code, even after 26 LLM inferences.
Delete Two Elements - 60 - main.log
Delete Two Elements - 60 - PR.log

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Type

enhancement, bug_fix

---

Description

• Implemented new stages for code structure generation and function body generation.
• Added debugging mechanism with function call logging and YAML serialization.
• Enhanced solution selection and possible solutions generation with additional YAML keys.
• Modified AI test generation to focus on input generation.
• Updated configuration files with new prompts for debugging, code fixing, and more.
• Changed file logging mode from overwrite to append.

---

Changes walkthrough

	Relevant files
Enhancement	7 files coding_competitor.py Integrate New Stages for Code Generation and Debugging      alpha_codium/gen/coding_competitor.py Added new stages for code structure generation and function body generation. Replaced initial code generation and public test evaluation with new stages. Added execution of public tests after code generation. +17/-14  debug.py Implement Debugging Mechanism with Function Call Logging  alpha_codium/gen/stages/debug.py Implemented a debugging mechanism with function call logging. Added YAML serialization for debugging information. Integrated custom input and output handling for debugging purposes. +98/-0    run_code_structure_generation.py Implement Code Structure Generation Stage                                alpha_codium/gen/stages/run_code_structure_generation.py Implemented code structure generation stage. Added error handling for retries. +37/-0    run_function_body_generation.py Implement Function Body Generation Stage                                  alpha_codium/gen/stages/run_function_body_generation.py Implemented function body generation stage. Added error handling for retries. +37/-0    run_generate_ai_test.py Modify AI Test Generation to Only Include Inputs                  alpha_codium/gen/stages/run_generate_ai_test.py Modified AI test generation to only include inputs. Adjusted YAML key handling for test generation. +1/-1      run_generate_possible_solutions.py Enhance Possible Solutions Generation Process                        alpha_codium/gen/stages/run_generate_possible_solutions.py Enhanced possible solutions generation with additional YAML keys. Added logic to optionally remove brute force solutions. +3/-2      run_public_tests.py Implement New Stage for Running Public Tests                          alpha_codium/gen/stages/run_public_tests.py Implemented a new stage for running public tests. Integrated debugging and code fixing within the test execution. +88/-0
Bug_fix	1 files run_choose_best_solution.py Enhance Solution Selection Process                                              alpha_codium/gen/stages/run_choose_best_solution.py Enhanced solution selection with additional YAML keys. Fixed comparison logic for identifying the best solution. +11/-4
Configuration changes	11 files __init__.py Change File Logging Mode to Append                                              alpha_codium/log/init.py Changed file logging mode from overwrite to append. +1/-1      code_contests_prompts_choose_best_solution.toml Update Prompts for Choosing Best Solution                                alpha_codium/settings/code_contests_prompts_choose_best_solution.toml Updated prompts for choosing the best solution. Added guidelines for output formatting and selection criteria. +14/-25  code_contests_prompts_debug.toml Add New Prompts for Debugging Stage                                            alpha_codium/settings/code_contests_prompts_debug.toml Added new prompts for debugging stage. Included guidelines for output formatting and error analysis. +126/-0  code_contests_prompts_fix_code.toml Add New Prompts for Code Fixing Stage                                        alpha_codium/settings/code_contests_prompts_fix_code.toml Added new prompts for code fixing stage. Specified guidelines for code correction based on debug analysis. +66/-0    code_contests_prompts_generate_ai_tests.toml Modify AI Test Generation Prompts to Focus on Inputs          alpha_codium/settings/code_contests_prompts_generate_ai_tests.toml Modified AI test generation prompts to focus on input generation. Updated guidelines for test case creation. +6/-13    code_contests_prompts_generate_code_structure.toml Add Prompts for Generating Code Structure                                alpha_codium/settings/code_contests_prompts_generate_code_structure.toml Added prompts for generating code structure. Specified guidelines for structuring code based on the algorithm. +74/-0    code_contests_prompts_generate_function_body.toml Add Prompts for Generating Function Bodies                              alpha_codium/settings/code_contests_prompts_generate_function_body.toml Added prompts for generating function bodies. Specified guidelines for implementing function logic based on the structure. +81/-0    code_contests_prompts_generate_possible_solutions.toml Update Prompts for Generating Possible Solutions                  alpha_codium/settings/code_contests_prompts_generate_possible_solutions.toml Updated prompts for generating possible solutions. Added guidelines for solution creation and complexity analysis. +21/-13  code_contests_prompts_reflect.toml Update Prompts for Problem Reflection                                        alpha_codium/settings/code_contests_prompts_reflect.toml Updated prompts for problem reflection. Specified guidelines for describing problem understanding and example analysis. +5/-4      code_contests_prompts_test_ai_inputs.toml Add New Prompts for Testing AI Inputs                                        alpha_codium/settings/code_contests_prompts_test_ai_inputs.toml Added new prompts for testing AI inputs. Specified guidelines for input validation and error analysis. +84/-0    configuration.toml Update General Configuration Settings                                        alpha_codium/settings/configuration.toml Updated model configuration and verbosity level. Adjusted settings for possible solutions and AI test generation. +3/-3

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PR feedback
⏱️ Estimated effort to review [1-5]	4, because the PR introduces significant changes across multiple files, including new features and modifications to existing logic. The complexity of the changes, especially those related to debugging and code generation, requires careful review to ensure correctness and adherence to project standards.
🧪 Relevant tests	No
🔍 Possible issues	The compare_titles function in maj/another_sorting_problem.py uses a custom comparator but does not return an integer (-1, 0, 1) as expected by Python's sorting functions when using cmp_to_key. This could lead to incorrect sorting behavior. The exec_code function in alpha_codium/gen/stages/debug.py modifies the built-in input and print functions but does not restore them, which could affect other parts of the code that rely on these functions. The use of pass at the end of the try block in alpha_codium/gen/coding_competitor.py is unnecessary and could be removed for clarity. The run_public_tests function in alpha_codium/gen/stages/run_public_tests.py has a success variable that is set but never used, which could be an oversight or unnecessary code. In several configuration files (e.g., alpha_codium/settings/code_contests_prompts_generate_ai_tests.toml), the frequency_penalty parameter is added, but its impact on the behavior of the AI models used should be carefully considered to ensure it aligns with the intended use cases.
🔒 Security concerns	No

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PR Code Suggestions

	Suggestions
enhancement	Use asynchronous versions of imported functions in an asynchronous context.   Consider using asynchronous versions of the imported functions to improve the efficiency of your asynchronous run method. alpha_codium/gen/coding_competitor.py [11-17] -from alpha_codium.gen.stages.run_public_tests import run_public_tests -from alpha_codium.gen.stages.run_code_structure_generation import run_code_structure_generation -from alpha_codium.gen.stages.run_function_body_generation import run_function_body_generation +from alpha_codium.gen.stages.run_public_tests_async import run_public_tests_async +from alpha_codium.gen.stages.run_code_structure_generation_async import run_code_structure_generation_async +from alpha_codium.gen.stages.run_function_body_generation_async import run_function_body_generation_async Add error handling for syntax errors in dynamic code execution.               Implement error handling for the exec statement to catch and log syntax errors in the provided code. alpha_codium/gen/stages/debug.py [63] -exec(code, candidate_module.__dict__) +try: + exec(code, candidate_module.__dict__) +except SyntaxError as e: + logger.error(f"Syntax error in provided code: {e}") + raise Simplify character comparison logic in sorting function.                      Instead of manually comparing characters in compare_titles, consider using the cmp_to_key function from the functools module to simplify the sorting logic. maj/another_sorting_problem.py [28-35] -for i in range(len(title1)): - if i % 2 == 0: # Odd position (0-indexed) - if title1[i] != title2[i]: - return ord(title1[i]) - ord(title2[i]) - else: # Even position (0-indexed) - if title1[i] != title2[i]: - return ord(title2[i]) - ord(title1[i]) -return 0 +# Assuming the improved logic is implemented in a separate function +return cmp_to_key(your_new_comparison_function)(title1, title2) Improve clarity and conciseness of guidance on choosing the best solution.    Consider rephrasing the guidance to emphasize the importance of insight and simplicity in the solution. The current phrasing "Don't just pick the most efficient solution. The main consideration is that the solution has the most insightfull key observation and can fully solve the problem in a simple and robust manner." could be made more concise and clear. alpha_codium/settings/code_contests_prompts_choose_best_solution.toml [32] -Don't just pick the most efficient solution. The main consideration is that the solution has the most insightfull key observation and can fully solve the problem in a simple and robust manner. +Prioritize solutions with insightful observations and simplicity, ensuring they fully and robustly solve the problem. Enhance guidelines for commenting on function purposes and interactions.      The guideline "Skip the function bodies, just comment which part of algorithm it implements, which other generated functions it calls, and what it returns." could be enhanced by specifying that comments should also briefly mention any significant assumptions or preconditions for each function. alpha_codium/settings/code_contests_prompts_generate_code_structure.toml [33] -Skip the function bodies, just comment which part of algorithm it implements, which other generated functions it calls, and what it returns. +Skip the function bodies, but include comments detailing the part of the algorithm implemented, any other generated functions it calls, what it returns, and any significant assumptions or preconditions. Add a default value for the explanation field in the InputOutput class. Consider adding a default value for the explanation field in the InputOutput class to ensure consistency and avoid potential errors when examples are missing explanations. alpha_codium/settings/code_contests_prompts_reflect.toml [29] -explanation: str = Field(description="Short explanation why the examples are in correct format.") +explanation: str = Field(default="", description="Short explanation why the examples are in correct format.") Add a description for the frequency_penalty parameter.           Add a description for the frequency_penalty parameter to clarify its purpose and impact on the code contest prompt solving process. alpha_codium/settings/code_contests_prompts_solve.toml [3] -frequency_penalty = 0.1 +frequency_penalty = 0.1 # Adjusts the likelihood of the AI generating repetitive information.
maintainability	Improve variable naming for better readability.                               Use a more descriptive variable name instead of f for the partial function to improve code readability. alpha_codium/gen/stages/run_choose_best_solution.py [22] -f = functools.partial(self._run, problem=problem, prompt=choose_prompt()) +choose_best_solution_partial = functools.partial(self._run, problem=problem, prompt=choose_prompt()) Remove unnecessary pass statement or replace it with meaningful logic.        Replace the pass statement with meaningful error handling or remove it if it's unnecessary. alpha_codium/gen/stages/run_public_tests.py [72] -pass +# Error handling or other logic here
clarity	Clarify instructions for reporting issues not directly related to function calls or output formatting. In the section that outlines the debugging task, it would be beneficial to clarify the expectations around the analysis of the call stack and the output. Specifically, the instruction "If you think the false output has other cause, like false algorithm, or that a function comments are false, say it." could be expanded to guide the user on how to report such findings effectively. alpha_codium/settings/code_contests_prompts_debug.toml [33] -If you think the false output has other cause, like false algorithm, or that a function comments are false, say it. +If you identify other causes for incorrect output, such as errors in the algorithm or inaccuracies in function comments, please provide a detailed explanation. Improve the clarity and correctness of instructions for generating AI tests.  The instruction "All the inputs should be valid, explicit, and can be directly inputted to the code. Double check them, and validate if they strictly match the problem description ans rules." contains a typo and could be more clearly worded. Consider revising for clarity and correctness. alpha_codium/settings/code_contests_prompts_generate_ai_tests.toml [30] -All the inputs should be valid, explicit, and can be directly inputted to the code. Double check them, and validate if they strictly match the problem description ans rules. +Ensure all inputs are valid, explicit, and directly usable by the code. Double-check to confirm they strictly adhere to the problem description and rules.
best practice	Emphasize the importance of handling edge cases in function implementations.  The guideline "Double-check each function. It should implement the part of algorithm in its comments, and generalize to any valid parameters, and not just the provided examples." could be improved by explicitly mentioning the importance of considering edge cases and ensuring the function handles them appropriately. alpha_codium/settings/code_contests_prompts_generate_function_body.toml [34] -Double-check each function. It should implement the part of algorithm in its comments, and generalize to any valid parameters, and not just the provided examples. +Carefully review each function to ensure it implements the algorithm as described in its comments, generalizes to any valid parameters, and correctly handles edge cases. Align frequency_penalty values for consistency across configurations. Ensure consistency in the configuration by aligning the frequency_penalty values across different TOML files if the intent is to maintain similar behavior in solving direct and regular code contest prompts. alpha_codium/settings/code_contests_prompts_solve_direct.toml [3] -frequency_penalty = 0.1 +frequency_penalty = 0.1 # Ensure this value aligns with similar configurations in other TOML files for consistency. Use environment variables for model and cache directory configurations.       Consider using environment variables or a configuration management system to dynamically set the model and private_dataset_cache_dir paths to facilitate easier switching between models and managing cache directories across different environments. alpha_codium/settings/configuration.toml [2-8] -model="gpt-4-0125-preview" -private_dataset_cache_dir="~/ai/alphacodium" +model=env.get("MODEL", "gpt-4-0125-preview") # Use environment variable or default +private_dataset_cache_dir=env.get("CACHE_DIR", "~/ai/alphacodium") # Use environment variable or default
bug	Correct typo in the remove_brute_force_solutions setting.        Correct the typo in the remove_brute_force_solutions setting to ensure the configuration is correctly applied and brute force solutions are appropriately managed according to the intended settings. alpha_codium/settings/configuration.toml [28] -remove_brute_force_solutions=false +remove_brute_force_solutions=false # Corrected typo from "remove_bruce_force_solutions"

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[mrT23]

@Majdoddin this looks like a cool endeavor

Is the code you propose ready for other people (me) to play with it a bit?
(the PR is currently in draft mode)

[Majdoddin]

@mrT23 I really appreciate your interest.
Sure, the code is ready to try.

The reason for draft mode is that
1- The stages "generate additional AI tests" and "Iterate on AI tests" are out of band. TODO:
-- The generated AI tests should have just input, because the LLM is not able to compute the output.
-- Running the code against AI tests should employ the function level debugging.
2- I added a quick module to run the generated code. It works, but better to integrate it with alpha_codium/code_contests/eval/

[Majdoddin]

Now it catches syntax errors and errors in imports of the generated code. Can be merged.

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PR Review

⏱️ Estimated effort to review [1-5]	4, because the PR introduces significant changes across multiple files, including new functionalities, changes to existing processes, and the addition of debugging capabilities. The complexity and breadth of these changes necessitate a thorough review to ensure correctness, performance, and alignment with the project's architecture and coding standards.
🧪 Relevant tests	No
🔍 Possible issues	Possible Bug: The implementation of run_public_tests in run_public_tests.py relies on a retry mechanism with a fixed number of iterations (max_iter). This could lead to non-deterministic behavior and potentially infinite loops if the underlying issue causing a test to fail is not resolved within the allowed attempts.
	Performance Concern: The debugging and function call logging mechanism introduced in debug.py could significantly impact performance, especially for complex codebases or when processing a large number of function calls. The overhead of logging every function call and its details might not be suitable for all environments.
	Code Quality: There are several instances where comments are used to disable code blocks (e.g., # # generate ai tests (only inputs) in coding_competitor.py). This approach can lead to confusion and maintenance challenges. It would be better to remove unused code or clarify its purpose if it's meant to be re-enabled later.
	Consistency Issue: The change from 'w' to 'a' in the file mode for logging setup in __init__.py of the log module could lead to logs being appended indefinitely, potentially causing issues with log file management and disk space usage.
🔒 Security concerns	No

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PR Code Suggestions

Category	Suggestions
Best practice	Use more descriptive variable names and avoid shadowing built-in functions. Consider using a more descriptive variable name than iter to avoid confusion with built-in functions and improve code readability. Additionally, ensure that the loop variable does not shadow the built-in iter function. alpha_codium/gen/stages/run_public_tests.py [47] -for iter in range(max_iter): +for attempt in range(max_iter):
	Use is None for None checks to follow Pythonic practices. Instead of using output == None, it's more Pythonic to use output is None to check for None values. This change enhances readability and follows Python's recommended practices. alpha_codium/gen/stages/run_public_tests.py [55] -if output == None or (output.strip() != outp.strip()): +if output is None or (output.strip() != outp.strip()):
	Encourage the use of modular design principles in code structure. Add a guideline to encourage the use of modular design principles when dividing the code into sub-functions, to enhance code readability and maintainability. alpha_codium/settings/code_contests_prompts_generate_code_structure.toml [31] -You must divide the generated code into small sub-functions, with meaningful names, parameters and functionality. +Divide the generated code into small sub-functions, applying modular design principles. Ensure each function has a clear purpose, meaningful names, and well-defined parameters.
	Adjust the default verbosity level to balance feedback and information overload. Consider setting the verbosity_level to 1 by default to balance between providing enough feedback for debugging and avoiding overwhelming users with too much information. alpha_codium/settings/configuration.toml [8] -verbosity_level=2 # 0,1,2 +verbosity_level=1 # 0,1,2
Enhancement	Enhance the custom print function to handle sep correctly. To ensure that the custom print function correctly handles multiple arguments and keyword arguments, consider using sep from kwargs or defaulting to ' ' if not provided. This change ensures that the custom print function behaves more like the built-in print. alpha_codium/gen/stages/debug.py [86] -captured_outputs.append(' '.join(map(str, args)) + end) +sep = kwargs.get('sep', ' ') +captured_outputs.append(sep.join(map(str, args)) + end)
	Prevent indefinite log file growth by using a rotating file handler. Consider using a rotating file handler or setting a file size limit for the log file to prevent it from growing indefinitely. This can be achieved by using RotatingFileHandler from the logging module instead of FileHandler. alpha_codium/log/init.py [25] -fileHandler = logging.FileHandler(logger_path, mode='a')#w +fileHandler = logging.handlers.RotatingFileHandler(logger_path, maxBytes=10485760, backupCount=5, mode='a')
	Encourage exploring efficient algorithms before resorting to brute force solutions. Consider rephrasing the guideline about brute force solutions to encourage exploring more efficient algorithms before resorting to brute force. This can foster a deeper understanding of the problem and promote the development of more sophisticated solutions. alpha_codium/settings/code_contests_prompts_generate_possible_solutions.toml [33] -- Give an efficient brute force solution, if you do not find a better algorithm. +- Explore efficient algorithms first. If none are found, then consider a brute force solution as a last resort.
	Add a guideline to ensure the diversity of the generated tests. Add a guideline to ensure the diversity of the generated tests, emphasizing the importance of covering a wide range of scenarios, including edge cases and typical use cases. alpha_codium/settings/code_contests_prompts_generate_ai_tests.toml [27] -Try to cover cases that are not covered by the original tests, or are challenging for this implementation. Also include a test for large inputs. +Ensure the diversity of the generated tests by covering a wide range of scenarios, including edge cases, typical use cases, and large inputs.
Clarification	Clarify guidelines on providing feedback for the chosen solution. Clarify the guideline about not changing the selected solution to specify that while the chosen solution should not be altered, constructive feedback on how to improve or optimize the solution is encouraged. alpha_codium/settings/code_contests_prompts_choose_best_solution.toml [33] -Do not change the selected solution. +Do not change the selected solution. However, providing constructive feedback on potential improvements or optimizations is encouraged.

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✨ Improve tool usage guide:

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Overview:
The improve tool scans the PR code changes, and automatically generates suggestions for improving the PR code. The tool can be triggered automatically every time a new PR is opened, or can be invoked manually by commenting on a PR.
When commenting, to edit configurations related to the improve tool (pr_code_suggestions section), use the following template:

/improve --pr_code_suggestions.some_config1=... --pr_code_suggestions.some_config2=...

With a configuration file, use the following template:

[pr_code_suggestions]
some_config1=...
some_config2=...

Enabling\disabling automation When you first install the app, the default mode for the improve tool is: pr_commands = ["/improve --pr_code_suggestions.summarize=true", ...] meaning the improve tool will run automatically on every PR, with summarization enabled. Delete this line to disable the tool from running automatically.

Utilizing extra instructions Extra instructions are very important for the improve tool, since they enable to guide the model to suggestions that are more relevant to the specific needs of the project. Be specific, clear, and concise in the instructions. With extra instructions, you are the prompter. Specify relevant aspects that you want the model to focus on. Examples for extra instructions: [pr_code_suggestions] # /improve # extra_instructions=""" Emphasize the following aspects: - Does the code logic cover relevant edge cases? - Is the code logic clear and easy to understand? - Is the code logic efficient? ... """ Use triple quotes to write multi-line instructions. Use bullet points to make the instructions more readable.

A note on code suggestions quality While the current AI for code is getting better and better (GPT-4), it's not flawless. Not all the suggestions will be perfect, and a user should not accept all of them automatically. Suggestions are not meant to be simplistic. Instead, they aim to give deep feedback and raise questions, ideas and thoughts to the user, who can then use his judgment, experience, and understanding of the code base. Recommended to use the 'extra_instructions' field to guide the model to suggestions that are more relevant to the specific needs of the project, or use the custom suggestions 💎 tool With large PRs, best quality will be obtained by using 'improve --extended' mode.

More PR-Agent commands To invoke the PR-Agent, add a comment using one of the following commands: /review: Request a review of your Pull Request. /describe: Update the PR title and description based on the contents of the PR. /improve [--extended]: Suggest code improvements. Extended mode provides a higher quality feedback. /ask <QUESTION>: Ask a question about the PR. /update_changelog: Update the changelog based on the PR's contents. /add_docs 💎: Generate docstring for new components introduced in the PR. /generate_labels 💎: Generate labels for the PR based on the PR's contents. /analyze 💎: Automatically analyzes the PR, and presents changes walkthrough for each component. See the tools guide for more details. To list the possible configuration parameters, add a /config comment.

See the improve usage page for a more comprehensive guide on using this tool.