PyGCA

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Mental Calculation

PyGCA is a Python library designed to detect and analyze operator usage in Python codebases. It supports a variety of operators, including arithmetic, bitwise, comparison, identity, logical, and membership operators. The library offers actionable suggestions for performance improvements, detailed reports on operator misuse, and customizable settings to fit different project needs.

Key Features

• Multi-operator detection:
  • Arithmetic (+, -, *, /, etc.)
  • Bitwise (&, |, ^, etc.)
  • Comparison (==, !=, >, etc.)
  • Identity (is, is not)
  • Logical (and, or, not)
  • Membership (in, not in)
• Actionable suggestions for performance improvements
• Detailed reporting on operator misuse
• Customizable settings for different project needs

[!TIP] To better understand the functional areas of each operator category and where they overlap, the following diagram visually represents the scope of PyGCA:

      +----------------------------+
      |        Logical Operators   |
      |                            |
      |                            |      +---------------------------+
      | +---------+    +---------+ |      |                           |
      | | Bitwise |--> |Comparison |      |   Arithmetic Operators    |
      | +---------+    +---------+ |      |                           |
      |                            |      +---------------------------+
      +----------------------------+  
                                   |
                            +------+---------------------+
                            | Identity & Membership Ops  |
                            +----------------------------+

Go to Installation

1. Clone the repository:

   git clone https://github.com/clintaire/PyGCA.git
   cd PyGCA

2. Install dependencies:

   pip install -r requirements.txt

Usage

Run the Operator Analysis

You can analyze any Python script for operator usage with a simple command:

   python3 -m bot.operator_analysis path/to/your_script.py

Here’s a basic Python script with various operators that PyGCA can analyze:

    def analyze_example(a, b):
    # Arithmetic operators
    sum_result = a + b
    diff = a - b
    
    # Logical operators
    if a and b:
        return True
    elif a or b:
        return False

    # Bitwise operators
    result = a & b
    return result

Run PyGCA and Inspect Output / Basically to inspect the code above

   python3 -m bot.operator_analysis analyze_example.py

Sample Output:

   ["Arithmetic Addition detected at line 4", "Logical AND detected at line 7", "Bitwise AND detected at line 12"]

The following truth table demonstrates logical operator results and their detection by PyGCA:

Expression	Expected Result	Detected Issue
True and False	False	No issue
False or True	True	No issue
True and False	Data	No issue
not True	False	No issue
a and not b	Depends on vars	No issue
a & b (bitwise AND)	Depends on bits	Misuse 🔴 Alert!

Note

You can modify PyGCA’s behavior to handle special cases or focus on specific operator categories. To run only the arithmetic or comparison checks, you can adjust configuration files or pass custom flags during execution

To only check for Arithmetic Operators

   python3 -m bot.operator_analysis --check-arithmetic path/to/script.py

• When running PyGCA on a larger codebase or a real-world project, it’s important to use modular analysis and profiling techniques to measure performance impact. Here’s how to profile the performance:

   import time
   from bot.arithmetic.arithmetic_checker import ArithmeticOperatorChecker
   from bot.utils import set_parents
   import ast

   # Load large source code
   source_code = """
   def large_function():
    x = 1
   """ * 10000  # Replicate a small function 10,000 times

   # Time the performance
   start_time = time.time()
   tree = ast.parse(source_code)
   set_parents(tree)
   checker = ArithmeticOperatorChecker()
   checker.visit(tree)
   end_time = time.time()

   print(f"Analysis completed in {end_time - start_time} seconds")

Running the above 🔝 code will allow you to test PyGCA on large scripts, and the output will help measure its efficiency.

Testing

To ensure everything is working, you can run PyGCA’s test suite using pytest. This will validate the detection algorithms against various test cases:

   PYTHONPATH=. pytest tests/

Upon successful execution, the terminal output should ⇙ appear as below:

Contributing

I welcome contributions! If you'd like to contribute to PyGCA, follow these steps:

1. Fork the repository.
2. Create a new branch for your feature or bugfix, replacing my-new-feature with a descriptive name: git checkout -b my-feature-name
3. Make your changes and commit them: git commit -am 'Add new feature'
4. Push the branch: git push origin my-feature-name
5. Create a new Pull Request.

Make sure to run the tests with pytest and ensure everything is working before submitting your PR.

For more details, see the Contributing Guide.

How to Follow

Join the community and stay updated with the latest changes to PyGCA by following the repository on GitHub:

• Watch the repository to get notifications for updates.
• Star the repository if you find it useful.
• Follow Clint Airé for updates on PyGCA and other projects.

Credits

• Image Credit: Wikipedia

LICENSE

Copyright 2024-Present Clint Airé.

The PyGCA repository is released under the MIT license.