Revit文件版本检测代码在Mac/Windows正常，Linux下失效求助

Got it, let's figure out why your Revit version detector isn't working on Linux. The core issue comes from how you're handling the binary RVT file content—let's break this down and fix it step by step:

• Copying the entire binary RVT file to a .txt is unnecessary and can introduce subtle cross-platform file handling quirks.
• Converting binary content to UTF-8 (even with errors='ignore') can mangle the ASCII-based "Format: XXXX" string you're targeting, since RVT files are packed binaries with non-UTF-8 data that gets corrupted during conversion.
• Your character filtering step (if char.isalpha()...) might be stripping or altering parts of the version string before you can search for it.

Here's a revised code version that works reliably on Linux (and still functions on Windows/Mac):

import os
import re

rvt_file = 'revit_file_2020.rvt'

if rvt_file.lower().endswith('.rvt'):
    # Read the RVT file directly as binary (no need for unnecessary copying!)
    with open(rvt_file, 'rb') as f:
        content = f.read()
    
    # Search for the "Format: XXXX" pattern directly in raw binary
    # The string is stored as ASCII in RVT files, so we use byte-based regex
    direct_match = re.search(rb'Format: (\d{4})', content)
    
    if direct_match:
        rvt_version = direct_match.group(1).decode('ascii')
        print(f"Revit Version: {rvt_version}")
    else:
        # Fallback: Check around the "build" marker like your original code
        build_match = re.search(rb'build', content, re.IGNORECASE)
        if build_match:
            # Extract a window around the build match to search for Format:
            start = max(0, build_match.start() - 60)
            end = build_match.end() + 40
            content_window = content[start:end]
            fallback_match = re.search(rb'Format: (\d{4})', content_window, re.IGNORECASE)
            
            if fallback_match:
                rvt_version = fallback_match.group(1).decode('ascii')
                print(f"Revit Version: {rvt_version}")
            else:
                print("not found")
        else:
            print("not found")
else:
    print("Please send a revit file instead.")

Key improvements: #

1. No more redundant file copying: We read the original RVT file directly as binary, cutting out unnecessary I/O and cross-platform file handling risks.
2. Binary-level searching: Instead of converting to UTF-8, we work with raw bytes. The "Format: XXXX" string is stored as ASCII in RVT files, so we can search for the byte pattern rb'Format: (\d{4})' directly without corruption.
3. Simplified regex logic: We use a single regex to capture the 4-digit version number immediately, avoiding messy string slicing and character filtering that could break the target string.
4. Robust fallback: If the direct "Format:" search fails, we still check around the "build" marker (like your original code) but do it all in binary to maintain data integrity.

This approach should integrate smoothly with your Linux-hosted Discord server and work consistently across all operating systems.

内容的提问来源于stack exchange，提问作者John Provost