如何批量处理目录中所有XML文件以去除空白行？

Got it, let's adjust your code to handle every XML file in your target directory smoothly! Here's a step-by-step breakdown and the revised working code:

Step 1: Fix Basics & Define Paths Cleanly #

First, make sure you import the os module (your original code uses it but doesn’t include the import). We’ll also separate input/output directories into variables for easier maintenance, and ensure the output directory exists (so you don’t get errors if it’s missing).

Step 2: Loop Through All Target Files #

Instead of hardcoding a single filename, we’ll loop through every file in your input directory. We’ll add a check to only process .xml files too—this avoids accidentally handling any non-XML files that might end up in the folder.

Revised Full Code #

import os

# Define your input and output directories (easy to modify later)
input_dir = r'C:\Users\Max12\Desktop\xml\pdfminer\UiPath\output'
output_dir = r'C:\Users\Max12\Desktop\xml\pdfminer\UiPath\out'

# Create output directory if it doesn't exist (no manual setup needed!)
os.makedirs(output_dir, exist_ok=True)

# Loop through each file in the input directory
for filename in os.listdir(input_dir):
    # Only process XML files to avoid unwanted files
    if filename.endswith('.xml'):
        # Build full paths for input and output files
        input_file_path = os.path.join(input_dir, filename)
        output_file_path = os.path.join(output_dir, filename)
        
        # Apply your blank-line-removal logic to each file
        with open(input_file_path, 'r') as infile, open(output_file_path, 'w') as outfile:
            for line in infile:
                # Skip empty lines (after stripping whitespace)
                if not line.strip():
                    continue
                outfile.write(line)

print("All XML files processed successfully!")

What This Does #

• Imports os: Required for directory and file path operations.
• Auto-creates Output Folder: os.makedirs(..., exist_ok=True) ensures the output directory exists—no need to manually create it beforehand.
• Preserves Original Filenames: Each cleaned file keeps its original name in the output folder (so 0.xml becomes out/0.xml, 1.xml becomes out/1.xml, etc.), which matches your goal of 4 cleaned XML files.
• Safely Filters Files: The .endswith('.xml') check ensures we only process the files you care about.
• Reuses Your Working Logic: The blank-line-removal code you already wrote is applied to every file individually.

内容的提问来源于stack exchange，提问作者Max FH