82 lines
2.9 KiB
Python
82 lines
2.9 KiB
Python
''''This script was used to replace the final index of tokenizer.json and vocab.json
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with "<|endoftext|>" token. Also reassociate the corresponding merges'''
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import json
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tokenizer_path = 'tokenizer.json'
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model_config_path = 'config.json'
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vocab_path = 'vocab.json'
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with open(vocab_path, "r") as f:
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vocab_data = json.load(f)
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with open(tokenizer_path, "r") as f:
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tokenizer_data = json.load(f)
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with open(model_config_path, "r") as f:
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model_config = json.load(f)
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model_vocab_size = model_config['vocab_size']
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tokenizer_vocab = tokenizer_data['model']['vocab']
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mergeslength = len(tokenizer_data['model']['merges'])
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#readjust added_tokens 'id' to model_vocab_size - 1
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tokenizer_data['added_tokens'][-1]['id'] = model_vocab_size - 1
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final_index = model_vocab_size - 1
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eos = '<|endoftext|>'
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#retrieve the key of final index
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old_key_final_index_tokenizer = list(tokenizer_data['model']['vocab'].keys())[final_index]
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old_key_final_index_vocab = list(vocab_data.keys())[final_index]
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old_key_final_index_vocab_min2 = list(vocab_data.keys())[final_index - 1]
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old_key_final_index_tokenizer_merges = tokenizer_data['model']['merges'][mergeslength - 1]
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print(f"old_key_final_index_tokenizer = {old_key_final_index_tokenizer}")
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print(f"old_key_final_index_vocab = {old_key_final_index_vocab}")
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print(f"old_key_final_index_vocab_min2 = {old_key_final_index_vocab_min2}")
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print(f"old_key_final_index_tokenizer_merges = {old_key_final_index_tokenizer_merges}")
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#replace old key with new key
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tokenizer_data['model']['vocab']['<|endoftext|>'] = tokenizer_data['model']['vocab'][old_key_final_index_tokenizer]
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vocab_data[eos] = vocab_data[old_key_final_index_vocab]
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#replace the final merges idx with vocab_data - 1
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tokenizer_data['model']['merges'] = tokenizer_data['model']['merges'][: mergeslength - 1]
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#delete old key
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del tokenizer_data['model']['vocab'][old_key_final_index_tokenizer]
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del vocab_data[old_key_final_index_vocab]
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#check updated key
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old_key_final_index_tokenizer = list(tokenizer_data['model']['vocab'].keys())[final_index]
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old_key_final_index_vocab = list(vocab_data.keys())[final_index]
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old_key_final_index_tokenizer_merges = tokenizer_data['model']['merges'][mergeslength - 2]
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print(len(tokenizer_data['model']['merges']))
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print()
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print(f"updated old_key_final_index_tokenizer = {old_key_final_index_tokenizer}")
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print(f"updated old_key_final_index_vocab = {old_key_final_index_vocab}")
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print(f"updated old_key_final_index_tokenizer_merges = {old_key_final_index_tokenizer_merges}")
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with open(tokenizer_path, "w")as f:
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json.dump(tokenizer_data, f)
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with open(vocab_path, "w")as f:
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json.dump(vocab_data, f)
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with open('merges.txt') as f:
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lines = f.readlines()
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with open("merges.txt", "w") as f:
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for i in range(len(lines) - 1):
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f.write(lines[i])
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with open('merges.txt') as f:
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newlines = f.readlines()
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print(f"newlines[len(newlines) - 1] = {newlines[len(newlines) - 1]}")
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