Metadata-Version: 2.1
Name: recursion-visualiser
Version: 1.0.0
Summary: A small python package to visualise recursive function on Python. It draws recursion tree
Home-page: https://github.com/sarangbishal/Recursion-Tree-Visualizer
Author: Bishal Sarangkoti
Author-email: sarangbishal@gmail.com
License: UNKNOWN
Description: # Recursion Visualiser  
        Recursion visualiser is a python tool that draws recursion tree for recursive function with very less code changes.  
          
          ## Installation  
        The only dependency for recursion visualiser is Graphviz which you can download from [here](https://www.graphviz.org/download/)  
          
        - Download  [graphviz binary](https://www.graphviz.org/download/)  
        - Add graphviz bin to path manually or by adding the following line on your script. Change the installation directory according to your installation path  
          
        ```  
        # Set it to bin folder of graphviz  
        os.environ["PATH"] += os.pathsep +  'C:/Program Files (x86)/Graphviz2.38/bin/'  
        ```  
        
          
        The easiest way to  install ```recursion-visualiser``` package is from [pypi](https://pypi.org/project/recursion-visualiser/)
        ```
        pip install recursion-visualiser
        ```
        The preferred way to import the class from the package is as:
        ```python
        from visualiser.visualiser import Visualiser as vs
        ```
        ## Example  
        ### 1.  Fibonacci  
        Let's draw the recursion tree for fibonacci number.  
        Here is how the simple code looks like  
        ```python  
        def fib(n):  
            if n <= 1: 
                return n 
            return fib(n - 1) + fib(n - 2)  
        
        print(fib(6))  
        ```  
          
        Now we want to draw the recursion tree for this function. It is as simple as adding a decorator  
        ```python  
        # Author: Bishal Sarang
        
        # Import Visualiser class from module visualiser
        from visualiser.visualiser import Visualiser as vs
        
        # Add decorator
        # Decorator accepts arguments: ignore_args and show_argument_name
        @vs()
        def fib(n):
            if n <= 1:
                return n
            return fib(n=n - 1) + fib(n=n - 2)
        
        
        def main():
            # Call function
            print(fib(n=6))
            # Save recursion tree to a file
            vs.make_animation("fibonacci.gif", delay=2)
        
        
        if __name__ == "__main__":
            main()
        ```  
        Here are the changes required:  
         
         - Add decorator Visualiser which accepts optional arguments `ignore_args`, `show_argument_name`  and 'show_return_value'   
         - Change every function calls to pass as keyword arguments.  
         - Make_animation
          
         The output image are saved as "fibonacci.gif" and "fibonacci.png"
         
        Here is how the recursion tree looks like:  
        Animation:
        ![enter image description here](https://github.com/sarangbishal/Recursion-Visualizer/blob/master/examples/fibonacci.gif)  
          
        ![enter image description here](https://github.com/sarangbishal/Recursion-Visualizer/blob/master/examples/fibonacci.png)  
        
        ## 2. Make sum  
        This is taken from one of my answers on quora where I had to manually  draw recursion tree. Using Visualiser with very less changes I was able to draw the following tree. You can compare the tree [here](https://qr.ae/TltTCV)  
        ![enter image description here](https://github.com/sarangbishal/Recursion-Visualizer/blob/master/examples/make_sum.png)  
          
          
          
        ## TODO:  
         - [x] Minimal working version  
         - [x] Upload package to pypi  
         - [x] Support animation
         - [ ] Refactor  
         - [ ] Handle base cases  
         - [ ] Make more beautiful trees
Platform: UNKNOWN
Classifier: Programming Language :: Python :: 3
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Requires-Python: >=3.6
Description-Content-Type: text/markdown
