import subprocess

class PyExtractor:
    def __init__(self, config):
        self.config = config

    def read_file(self, input_filename):
        with open(input_filename, 'r') as file:
            return file.readlines()
            
    def extract_paths(self, path):
        output = self.read_file(path)
        
        if len(output) == 0:
            err = err.decode()
            raise ValueError(err)
        hash_to_string_dict = {}
        result = []
        for i, line in enumerate(output):
            parts = line.rstrip().split(' ')
            method_name = parts[0]
            current_result_line_parts = [method_name]
            contexts = parts[1:]
            for context in contexts[:self.config.MAX_CONTEXTS]:
                context_parts = context.split(',')
                context_word1 = context_parts[0]
                context_path = context_parts[1]
                context_word2 = context_parts[2]
                hashed_path = str(context_path)
                hash_to_string_dict[hashed_path] = context_path
                current_result_line_parts += ['%s,%s,%s' % (context_word1, hashed_path, context_word2)]
            space_padding = ' ' * (self.config.MAX_CONTEXTS - len(contexts))
            result_line = ' '.join(current_result_line_parts) + space_padding
            result.append(result_line)
        return result, hash_to_string_dict