debug: Flake8 duplicate issue test

[vansh-deepsource]

No description provided.

[deepsource-development]

DeepSource Code Review

We reviewed changes in 9d1323c...7247452 on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade   Focus Area: Reliability

Security   Reliability   Complexity   Hygiene

Feedback

Test fixtures treated as "real code"

• Most findings — undefined names, unused imports, empty functions, assert usage — are all in the synthetic flake8 sample file that’s intentionally “bad” to trigger E122.
• If this file is only for linter tests, it might be worth separating or annotating it so tooling and reviewers don’t treat these as product bugs.

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
Python		Apr 2, 2026 5:46p.m.	Review ↗
Secrets		Apr 2, 2026 5:46p.m.	Review ↗

[deepsource-development]

Method without `self` usage should be a `@staticmethod`

The method concrete_method does not reference self, meaning it does not depend on instance state. This causes Python to create bound method wrappers for each instance, leading to unnecessary overhead. Decorating it with @staticmethod removes the need for instance binding.

Add @staticmethod decorator above concrete_method to prevent binding and optimize memory and computation usage.

[deepsource-development]

Empty function body without explanation causes confusion

The my_function on line 30 is left empty without any implementation or comment, leading to unclear intent and potential confusion about whether it is unfinished or intentionally empty. This ambiguity makes maintenance and further development harder.
Add a comment explaining the empty body intention, a docstring, or raise a NotImplementedError to clarify the function's state and expected behavior.

[deepsource-development]

Empty function body without explanatory comment or exception

The function another_function is declared but contains no code or comment explaining its emptiness. This can confuse maintainers about whether it was overlooked, incomplete, or intentionally left blank. Leaving functions empty without explanation may lead to misunderstanding or overlooked functionality.

Add a comment explaining why the function is left empty or raise NotImplementedError if the function is meant to be implemented later. Alternatively, provide a docstring to clarify the intent behind the empty body.

[deepsource-development]

Undefined `some_value` causes runtime error

The variable some_value is referenced in the condition but is not defined anywhere in the snippet. This will cause a NameError at runtime, stopping the program execution unexpectedly.

Define or import some_value before use to ensure it exists when evaluated in the condition.

[deepsource-development]

Undefined `other_value` causes runtime NameError

The variable other_value is referenced in the expression but is not defined in the accessible scope, causing a runtime NameError when this line executes. This stops program execution and indicates a missing declaration or import.

Define other_value before use or correct the variable name to a properly initialized symbol in the current scope to fix the error.

[deepsource-development]

Undefined `BaseClassThree` causes runtime NameError

The code references BaseClassThree, which is neither defined nor imported in the snippet, leading to a critical runtime NameError when executed. This prevents the program from running correctly as Python cannot find the definition of BaseClassThree.

Define BaseClassThree or import it from the correct module to resolve the issue and ensure the code runs without errors.

[deepsource-development]

Undefined name `Mixin` causes runtime NameError

The symbol Mixin on line 254 is referenced but not defined or imported anywhere in the visible code, which will cause a NameError at runtime when Python cannot resolve it. This interrupts program execution and can cause crashes.

Define the Mixin symbol or ensure it is correctly imported from its module or file before usage to resolve this error.

[deepsource-development]

Undefined name causes runtime NameError

The name Base is used in the code snippet without being defined or imported anywhere, which causes a runtime NameError. This interrupts program execution when the undefined name is accessed.

Define or import Base before its usage to ensure it is recognized by the interpreter and to prevent runtime failures.

[deepsource-development]

Undefined `result` variable causes runtime error

The result variable appears in the condition result == expected inside the assertion without any prior definition or assignment. This will cause the program to raise a NameError, halting execution. Ensure all variables are defined before use to prevent runtime failures.

Define or import the result variable appropriately before the assertion line to fix the error and ensure the code runs correctly.

[deepsource-development]

Undefined `error` causes runtime NameError

The variable error is referenced without a prior definition or import, which will cause a NameError when the code runs, disrupting the program flow. Referencing undefined variables like error often stems from typos or missing imports.

Define or import the error variable properly before usage or correct any misspellings to ensure it exists in the current scope.

[deepsource-development]

Empty function body causes confusion or unhandled cases

The function another_function is defined with an empty body and no docstring or comment explaining its purpose. This causes confusion for maintainers and may lead to unhandled behavior or errors during execution.

Add a comment explaining why the function is intentionally empty, provide a docstring with explanation, or raise an appropriate exception like NotImplementedError to clarify intent and handle unimplemented functionality.

[deepsource-development]

Empty function body causes confusion or unclear intent

An empty function body with no comment or docstring obscures the function's purpose or intended usage, causing confusion for maintainers or users. It is unclear whether the function is a placeholder, deprecated, or mistakenly incomplete.

Add a clarifying comment or docstring explaining why the function is empty, or raise NotImplementedError to indicate expected implementation later or unsupported functionality.

[deepsource-development]

Undefined `url` usage causes runtime NameError

The variable url is referenced but not defined anywhere in the visible code, which causes a runtime NameError when accessed. This prevents the code from executing correctly or completing its intended operation.
Define or import the variable url before its usage to ensure it is valid and accessible during execution, preventing runtime errors.

[deepsource-development]

Undefined `some_value` causes runtime error

The code assigns long_condition with a condition involving some_value, which is not defined anywhere in the snippet. This leads to a runtime error because Python cannot resolve the name some_value.

Define some_value before usage or import it if it's from another module to ensure the variable is recognized when evaluating long_condition.

[deepsource-development]

Undefined `other_value` causes runtime NameError

The variable other_value is referenced in the condition but is not declared or imported anywhere in the visible scope, which results in a NameError at runtime. This breaks program execution and prevents normal flow.

Define or import other_value before its usage, fixing any possible typos to ensure correct resolution and program stability.

[deepsource-development]

Assigned lambda expression hinders debugging by showing ``

Assigning a lambda expression to the variable transform causes debugging tools and error tracebacks to display <lambda> instead of a meaningful function name. This obscures the call stack and hinders understanding of error locations.

Replace the lambda expression with a named function definition to improve traceability and debugging clarity.

[deepsource-development]

`assert` use in app code disables checks in optimized runs

The assert statement on line 264 is used inside application logic, which will be removed when Python runs in optimized mode, bypassing critical sanity checks. This risks allowing faulty or insecure conditions without error detection.

Replace assert with explicit if checks raising exceptions like AssertionError to ensure validation runs regardless of optimization flags.

[deepsource-development]

Use of undefined variable causes runtime error

The variable result in the assert statement is not defined or imported in the surrounding code snippet, leading to a runtime NameError. This prevents the code from running correctly since Python requires all variables to be defined before use.
Define or import the variable result properly before referencing it in assertions or other expressions to avoid runtime failures.

[deepsource-development]

Undefined `error` causes runtime NameError

The variable error is referenced without prior definition or import, which will cause the code to raise a NameError at runtime, interrupting normal execution and potentially causing system crashes or malfunctions.

Define or correctly import the error variable before its usage to ensure it exists in the current scope and prevent runtime exceptions.

[deepsource-development]

Local `value` shadows outer scope variable causing confusion

The function parameter value in validate shadows any variable named value from outer scopes, causing the outer variable to be inaccessible within this scope. This can lead to confusion and bugs where the intended variable is not used.

Rename the function parameter or encapsulate outer variables in functions to avoid shadowing and improve code clarity.