Update token_handler.py

[DedyKredo]

Type

enhancement, bug_fix

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Description

• Introduced error handling in _get_system_user_tokens to gracefully manage failures, returning -1 in case of exceptions.
• Minor fix to ensure count_tokens method adheres to Python file standards by including a newline at the end.

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Changes walkthrough

	Relevant files
Enhancement	token_handler.py Enhance Token Handling and Error Management                            pr_agent/algo/token_handler.py Added error handling to _get_system_user_tokens method to return -1 on exception. Ensured count_tokens method now properly includes a newline at the end of the file. +10/-7

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[codiumai-pr-agent-pro]

PR Description updated to latest commit (a461c2a)

• Copy walkthrough table to "Files Changed" Tab

[codiumai-pr-agent-pro]

PR Review

⏱️ Estimated effort to review [1-5]	2, because the changes are straightforward and localized to a single file with a clear purpose. The modifications include adding a try-except block for error handling and ensuring compliance with Python file standards by adding a newline at the end of the file. The logic within the modified methods remains largely unchanged, simplifying the review process.
🏅 Score	85
🧪 Relevant tests	No
🔍 Possible issues	Error Handling Generality: The exception handling in _get_system_user_tokens uses a bare except, which might catch more exceptions than intended, potentially masking different kinds of errors. It's generally recommended to catch specific exceptions or at least log the caught exception.
	Return Value on Error: Returning -1 to indicate an error in _get_system_user_tokens might not be clear to all function callers without reading the function's documentation. Consider raising a custom exception or using a more Pythonic approach to signal errors.
🔒 Security concerns	No

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[codiumai-pr-agent-pro]

PR Code Suggestions

Category	Suggestions
Best practice	Specify exception types in the try-except block. It's recommended to specify the exception type you are catching in the try-except block to avoid catching unexpected exceptions, which can make debugging harder. If you're unsure about the specific exceptions that Environment or encoder.encode might raise, you can start with catching Exception as a more explicit catch-all, and then refine it as you understand the specific exceptions that can occur. pr_agent/algo/token_handler.py [52-60] try: environment = Environment(undefined=StrictUndefined) system_prompt = environment.from_string(system).render(vars) user_prompt = environment.from_string(user).render(vars) system_prompt_tokens = len(encoder.encode(system_prompt)) user_prompt_tokens = len(encoder.encode(user_prompt)) return system_prompt_tokens + user_prompt_tokens -except: +except Exception: return -1
Possible issue	Review the necessity of the disallowed_special=() parameter in encoder.encode. The encoder.encode method is called with a new parameter disallowed_special=() which might be an intentional feature. However, if this change in behavior is not intentional, consider removing this parameter to maintain the original behavior of the encode method. If this parameter is essential for your use case, it's recommended to document the reason for its inclusion to maintain code clarity. pr_agent/algo/token_handler.py [72] -return len(self.encoder.encode(patch, disallowed_special=())) +return len(self.encoder.encode(patch))

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[DedyKredo]

/help

[codiumai-pr-agent-pro]

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[codiumai-pr-agent-pro]

Changelog updates:

markdown

2024-03-14

Enhanced

• Introduced error handling in _get_system_user_tokens to gracefully manage failures.
• Ensured count_tokens method adheres to Python file standards by including a newline at the end.

to commit the new content to the CHANGELOG.md file, please type:
'/update_changelog --pr_update_changelog.push_changelog_changes=true'

[codiumai-pr-agent-pro]

PR Documentation

Here is a list of the files that were modified in the PR, with docstring for each altered code component:

token_handler.py                                                                                                                                _get_system_user_tokens (method) [+9/-6]                                                                                                        Component signature: def _get_system_user_tokens(self, pr, encoder, vars: dict, system, user): Docstring: """ Calculates the number of tokens in the system and user strings. Args: - pr: The pull request object. - encoder: An object of the encoding_for_model class from the tiktoken module. - vars: A dictionary of variables. - system: The system string. - user: The user string. Returns: The sum of the number of tokens in the system and user strings. """

[codiumai-pr-agent-pro]

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file	Changed components
token_handler.py	Test Docs Improve Similar   _get_system_user_tokens (method of TokenHandler)   +9/-6

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