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Tests the ability to open and read a PowerPoint (.pptx) file using the python-pptx library, validating file existence, size, and basic slide iteration.

Purpose

This function serves as a diagnostic tool to verify that PowerPoint files can be successfully opened and processed. It checks file existence, reports file size, attempts to open the presentation with python-pptx, counts slides, and tests iteration through the first two slides. It provides detailed console output with success/failure indicators and returns a boolean indicating whether the file was successfully processed.

Source Code

def test_pptx_file(file_path):
    """Test opening a PowerPoint file"""
    print(f"\n{'='*80}")
    print(f"Testing PowerPoint: {Path(file_path).name}")
    print(f"{'='*80}")
    
    try:
        import pptx
        file_path_obj = Path(file_path)
        
        # Check if file exists
        if not file_path_obj.exists():
            print(f"❌ File does not exist!")
            return False
            
        # Check file size
        file_size = file_path_obj.stat().st_size
        print(f"✓ File exists, size: {file_size:,} bytes ({file_size/1024/1024:.2f} MB)")
        
        # Try to open with python-pptx
        print(f"Attempting to open with python-pptx...")
        prs = pptx.Presentation(str(file_path))
        print(f"✓ Successfully opened with python-pptx")
        print(f"  - Number of slides: {len(prs.slides)}")
        
        # Try to extract some text
        slide_count = 0
        for slide in prs.slides:
            slide_count += 1
            if slide_count > 2:  # Just test first 2 slides
                break
        print(f"✓ Can iterate through slides")
        return True
        
    except Exception as e:
        print(f"❌ Error: {type(e).__name__}: {e}")
        print(f"\nFull traceback:")
        traceback.print_exc()
        return False

Parameters

Parameter Details

file_path: String or path-like object representing the file system path to the PowerPoint (.pptx) file to be tested. Can be absolute or relative path. The file should exist and be a valid PowerPoint presentation format.

Return Value

Returns a boolean value: True if the PowerPoint file exists, can be opened successfully with python-pptx, and slides can be iterated; False if any error occurs during the process (file not found, corrupted file, or any exception during processing).

Dependencies

• pptx
• pathlib
• traceback

Required Imports

from pathlib import Path
import traceback
import pptx

Usage Example

from pathlib import Path
import traceback
import pptx

def test_pptx_file(file_path):
    """Test opening a PowerPoint file"""
    print(f"\n{'='*80}")
    print(f"Testing PowerPoint: {Path(file_path).name}")
    print(f"{'='*80}")
    
    try:
        import pptx
        file_path_obj = Path(file_path)
        
        if not file_path_obj.exists():
            print(f"❌ File does not exist!")
            return False
            
        file_size = file_path_obj.stat().st_size
        print(f"✓ File exists, size: {file_size:,} bytes ({file_size/1024/1024:.2f} MB)")
        
        print(f"Attempting to open with python-pptx...")
        prs = pptx.Presentation(str(file_path))
        print(f"✓ Successfully opened with python-pptx")
        print(f"  - Number of slides: {len(prs.slides)}")
        
        slide_count = 0
        for slide in prs.slides:
            slide_count += 1
            if slide_count > 2:
                break
        print(f"✓ Can iterate through slides")
        return True
        
    except Exception as e:
        print(f"❌ Error: {type(e).__name__}: {e}")
        print(f"\nFull traceback:")
        traceback.print_exc()
        return False

# Example usage
result = test_pptx_file('presentation.pptx')
if result:
    print('PowerPoint file is valid and readable')
else:
    print('Failed to process PowerPoint file')

Best Practices

• Ensure the python-pptx library is installed before calling this function
• Provide valid file paths (absolute or relative) to existing PowerPoint files
• The function only tests the first 2 slides for performance reasons; modify the limit if deeper validation is needed
• Check the return value to determine if the file was successfully processed
• Console output provides detailed diagnostic information useful for debugging
• The function handles exceptions gracefully and prints full tracebacks for debugging
• File path is converted to string when passed to pptx.Presentation() for compatibility

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