pycnite_bytecode_offset_to_line_number_mapping.py

1import sys
2from pycnite import mapping
3
4def print_line_mapping(pyc_path):
5    # Map bytecode offsets to line numbers in the source file.
6    # This is a common task for debuggers and coverage tools.
7    line_map = mapping.get_line_mapping(pyc_path)
8    
9    print(f"Line mapping for {pyc_path}:")
10    for offset, line in sorted(line_map.items()):
11        print(f"  Offset {offset:4} -> Line {line}")
12
13if __name__ == "__main__":
14    if len(sys.argv) < 2:
15        print("Usage: python quickstart.py <path_to_pyc_file>")
16    else:
17        print_line_mapping(sys.argv[1])