Pyarmor试用版代码超限及pyminifier编码问题无付费求解

Alright, let's break down your two problems and walk through free, practical solutions for each—no paid tools required.

Fixing Pyarmor Trial Version's Code Object Size Limit #

The trial version of Pyarmor caps individual code objects (like modules or large functions) at 32768 bytes, which is tripping up your 1000-line script. Here's how to work around it without paying:

• Split your code into smaller modules: Instead of keeping everything in one big file, split logic into separate files. For example, move helper functions to a utils.py, configuration constants to config.py, and leave only the core execution flow in your main script. Pyarmor processes each module independently, so each smaller file's code object will stay under the size limit.
• Trim redundant code: Strip out all comments, unused docstrings, empty lines, and extra whitespace. Even small cuts can reduce your code's size enough to fit the limit. You can automate this with a quick script:

  with open("your_main_code.py", "r", encoding="utf-8") as f:
      lines = f.readlines()
  
  cleaned_lines = []
  for line in lines:
      stripped_line = line.strip()
      # Skip single-line comments and empty lines
      if not stripped_line or stripped_line.startswith("#"):
          continue
      # Skip standalone docstrings (adjust if your code uses multi-line ones)
      if (stripped_line.startswith('"""') or stripped_line.startswith("'''")) and stripped_line.endswith(stripped_line[0:3]):
          continue
      cleaned_lines.append(line)
  
  with open("trimmed_code.py", "w", encoding="utf-8") as f:
      f.writelines(cleaned_lines)
  

• Break large functions into smaller ones: If you have a single function spanning hundreds of lines, split it into focused, smaller functions. Each smaller function will have its own smaller code object, avoiding the Pyarmor limit entirely.

Fixing pyminifier's 'charmap' Decode Error #

This error pops up because pyminifier defaults to your system's native encoding (e.g., cp1252 on Windows) to read files, but your code contains bytes that don't map to that encoding (like 0x90). Here are free fixes:

• Use a wrapper script to force UTF-8 encoding: Pyminifier doesn't always let you specify encoding via command line, so wrap it in a script that handles encoding correctly:

  import pyminifier
  import sys
  
  def minify_with_utf8(input_path, output_path):
      # Read the file with UTF-8, replacing unrecognized bytes instead of crashing
      with open(input_path, 'r', encoding='utf-8', errors='replace') as f:
          raw_code = f.read()
  
      # Apply minification (tweak options based on your needs)
      minified_code = pyminifier.minify(
          raw_code,
          remove_annotations=True,
          remove_docstrings=True,
          rename_variables=True,
          preserve_lines=False
      )
  
      # Write the result back in UTF-8
      with open(output_path, 'w', encoding='utf-8') as f:
          f.write(minified_code)
  
  if __name__ == "__main__":
      if len(sys.argv) != 3:
          print("Usage: python minify_wrapper.py [input_file.py] [output_file.py]")
          sys.exit(1)
      minify_with_utf8(sys.argv[1], sys.argv[2])
  

  Run it with python minify_wrapper.py your_code.py minified_code.py—this skips the encoding mismatch issue entirely.
• Convert your code file to UTF-8: Use a text editor like VS Code or Notepad++ to re-save your file in UTF-8 (without BOM). In VS Code, click the encoding label in the bottom-right corner, select "Save with Encoding", then pick "UTF-8". This removes incompatible encoding bytes that are causing the error.
• Remove stray problematic bytes: If 0x90 is a random stray character (from copying/pasting), you can delete it with a simple script:

  with open("your_code.py", "rb") as f:
      byte_content = f.read()
  
  # Replace the problematic byte with nothing (or a space if needed)
  cleaned_content = byte_content.replace(b'\x90', b'')
  
  with open("fixed_code.py", "wb") as f:
      f.write(cleaned_content)
  

内容的提问来源于stack exchange，提问作者Mars Bros