Python Script Execution Simulator

Pseudo Code for Solving a Python Run

Objective

Create pseudo code to simulate the essential steps for executing a Python script.

Key Steps

1. Read the Python script file: Read the code content from a specified Python file.
2. Compile/Interpret the Code: Ensure the code is syntactically correct.
3. Execute the Code: Run the code to produce output.
4. Capture Output: Store or display the result of the code execution.
5. Handle Errors: Catch and handle any errors during execution.
6. Report Execution Status: Communicate the success or failure of the script execution.

Pseudo Code

BEGIN
    // Step 1: Read the Python script file
    FUNCTION readFile(filePath)
        OPEN file at filePath
        READ all content of the file
        RETURN fileContent
    END FUNCTION

    // Step 2: Compile/Interpret the Code
    FUNCTION compileCode(code)
        TRY
            COMPILE code
            RETURN True
        CATCH compilationError
            OUTPUT "Compilation error: " + compilationError.message
            RETURN False
    END FUNCTION

    // Step 3: Execute the Code
    FUNCTION executeCode(code)
        TRY
            EXECUTE code
            RETURN codeOutput
        CATCH executionError
            OUTPUT "Execution error: " + executionError.message
            RETURN executionError
    END FUNCTION

    // Step 4: Capture Output
    FUNCTION captureOutput(output)
        IF output instanceOf Error
            RETURN "Error captured: " + output.message
        ELSE
            RETURN "Execution succeeded with output: " + output
    END FUNCTION

    // Step 5: Handle Errors is embedded in compile and execute steps

    // Step 6: Report Execution Status
    FUNCTION reportStatus(status)
        OUTPUT status
    END FUNCTION

    // Main program logic
    scriptPath = "path/to/python/script.py"
    scriptContent = readFile(scriptPath)

    IF scriptContent is NOT EMPTY
        isCompiled = compileCode(scriptContent)
        IF isCompiled
            executionResult = executeCode(scriptContent)
            statusMessage = captureOutput(executionResult)
        ELSE
            statusMessage = "Compilation failed. Execution aborted."
        END IF
        reportStatus(statusMessage)
    ELSE
        reportStatus("Cannot read the script file.")
    END IF

END

Explanation

1. readFile(filePath): Opens the specified Python file and reads its contents.
2. compileCode(code): Checks for syntax errors in the code and returns true if the code compiles correctly, or an error message if it does not.
3. executeCode(code): Runs the Python code, capturing and returning any result or error produced.
4. captureOutput(output): Determines if the output is an error or a success message and formats accordingly.
5. reportStatus(status): Outputs the final status message indicating the result of the attempted execution.

This structured, high-level plan can serve as a foundation for implementing a Python script runner, providing clarity on the necessary steps and error-handling mechanisms.