C:\Users\hp\PycharmProjects\PythonProject\.venv\Scripts\python.exe "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py" 2025-05-31 20:17:28.407283: I tensorflow/core/util/port.cc:153] oneDNN custom operations are on. You may see slightly different numerical results due to floating-point round-off errors from different computation orders. To turn them off, set the environment variable `TF_ENABLE_ONEDNN_OPTS=0`. 2025-05-31 20:17:29.081651: I tensorflow/core/util/port.cc:153] oneDNN custom operations are on. You may see slightly different numerical results due to floating-point round-off errors from different computation orders. To turn them off, set the environment variable `TF_ENABLE_ONEDNN_OPTS=0`. WARNING:tensorflow:From D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py:19: The name tf.disable_v2_behavior is deprecated. Please use tf.compat.v1.disable_v2_behavior instead. WARNING:tensorflow:From C:\Users\hp\PycharmProjects\PythonProject\.venv\Lib\site-packages\tensorflow\python\compat\v2_compat.py:98: disable_resource_variables (from tensorflow.python.ops.resource_variables_toggle) is deprecated and will be removed in a future version. Instructions for updating: non-resource variables are not supported in the long term Traceback (most recent call last): File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 384, in <module> main(None) # 直接调用主函数 ^^^^^^^^^^ File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 351, in main train() File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 148, in train train_feeder = DataIterator(data_dir='./data/train/') ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 62, in __init__ self.labels = [int(file_name[len(data_dir):].split(os.sep)[0]) for file_name in self.image_names] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ValueError: invalid literal for int() with base 10: '6.png' train Begin training ./data/train/03755 进程已结束,退出代码为 1

时间: 2025-06-01 07:19:56 浏览: 23
### 解决 TensorFlow DataIterator 中因文件名格式导致的 ValueError 错误 在 TensorFlow 数据迭代器中,`ValueError: invalid literal for int() with base 10` 的错误通常发生在尝试将文件名转换为整数标签时。这种问题可能源于文件命名规则不符合预期,或者数据预处理逻辑未正确分离文件名和标签[^2]。 以下是一个完整的解决方案,确保能够正确解析文件名并避免无效转换。 --- #### 文件名解析逻辑 假设文件名格式为 `'文字_标签.png'`,例如 `'去_9.png'`,其中 `'9'` 是标签部分。需要通过字符串操作提取标签,并将其转换为整数。 ```python import os def extract_label(file_name): # 假设文件名为 '文字_标签.png' 格式 try: label_part = file_name.split('_')[-1].split('.')[0] # 提取标签部分 return int(label_part) # 转换为整数 except ValueError: raise ValueError(f"无法从文件名 {file_name} 中提取有效的整数标签") ``` 此函数通过 `split('_')` 和 `split('.')` 分离文件名中的标签部分,并尝试将其转换为整数。如果文件名格式不匹配或包含非数字字符,则会抛出异常[^3]。 --- #### 构建数据集 使用 TensorFlow 的 `tf.data.Dataset` 构建数据管道,确保文件路径和标签一一对应。 ```python import tensorflow as tf # 定义数据目录 data_dir = './data/train/' # 获取所有文件名 image_names = [f for f in os.listdir(data_dir) if f.endswith('.png')] # 提取标签并构建数据集 labels = [extract_label(f) for f in image_names] filenames = [os.path.join(data_dir, f) for f in image_names] # 创建 TensorFlow 数据集 dataset = tf.data.Dataset.from_tensor_slices((filenames, labels)) # 加载图像函数 def load_image(filename, label): image = tf.io.read_file(filename) image = tf.image.decode_png(image, channels=3) image = tf.image.resize(image, [224, 224]) # 调整大小 image = image / 255.0 # 归一化 return image, label # 映射加载函数 dataset = dataset.map(load_image) ``` 在此代码中: - `extract_label` 函数用于从文件名中提取标签。 - `tf.data.Dataset.from_tensor_slices` 将文件路径和标签组合为数据集。 - `load_image` 函数负责加载、解码和预处理图像[^4]。 --- #### 异常处理 为了增强代码的健壮性,可以在数据加载阶段添加异常处理逻辑,确保程序不会因单个文件的错误而崩溃。 ```python valid_filenames = [] valid_labels = [] for f in image_names: try: label = extract_label(f) valid_filenames.append(os.path.join(data_dir, f)) valid_labels.append(label) except ValueError: print(f"警告:文件 {f} 的标签格式无效,已跳过") # 使用有效数据构建数据集 dataset = tf.data.Dataset.from_tensor_slices((valid_filenames, valid_labels)) ``` 此代码段会过滤掉所有无法正确解析标签的文件,并打印警告信息[^5]。 --- #### 总结 通过上述方法,可以有效解决 `ValueError: invalid literal for int() with base 10` 的问题。关键在于: 1. 确保文件名格式符合预期。 2. 在数据预处理阶段正确分离文件名和标签。 3. 添加异常处理逻辑以增强代码的鲁棒性。 ---
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C:\Users\hp\PycharmProjects\PythonProject\.venv\Scripts\python.exe "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py" 2025-05-31 20:05:14.516144: I tensorflow/core/util/port.cc:153] oneDNN custom operations are on. You may see slightly different numerical results due to floating-point round-off errors from different computation orders. To turn them off, set the environment variable TF_ENABLE_ONEDNN_OPTS=0. 2025-05-31 20:05:15.196581: I tensorflow/core/util/port.cc:153] oneDNN custom operations are on. You may see slightly different numerical results due to floating-point round-off errors from different computation orders. To turn them off, set the environment variable TF_ENABLE_ONEDNN_OPTS=0. train Begin training ./data/train/03755 WARNING:tensorflow:From D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py:19: The name tf.disable_v2_behavior is deprecated. Please use tf.compat.v1.disable_v2_behavior instead. WARNING:tensorflow:From C:\Users\hp\PycharmProjects\PythonProject\.venv\Lib\site-packages\tensorflow\python\compat\v2_compat.py:98: disable_resource_variables (from tensorflow.python.ops.resource_variables_toggle) is deprecated and will be removed in a future version. Instructions for updating: non-resource variables are not supported in the long term Traceback (most recent call last): File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 384, in <module> main(None) # 直接调用主函数 ^^^^^^^^^^ File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 351, in main train() File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 148, in train train_feeder = DataIterator(data_dir='./data/train/') ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\PyCharm 2025.1.1.1\PythonProject\ChineseWrite\chinese_rec.py", line 62, in __init__ self.labels = [int(file_name[len(data_dir):].split(os.sep)[0]) for file_name in self.image_names] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ValueError: invalid literal for int() with base 10: '去_9.png'

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运行显示C:\Users\Administrator\PyCharmMiscProject\.venv\Scripts\python.exe "D:/PyCharm/PyCharm Community Edition 2025.1.1.1/plugins/python-ce/helpers/pycharm/_jb_trialtest_runner.py" --path C:\Users\Administrator\PyCharmMiscProject\flask_project\tests.py Testing started at 15:55 ... Launching trial with arguments --reporter=teamcity C:\Users\Administrator\PyCharmMiscProject\flask_project\tests.py in C:\Users\Administrator\PyCharmMiscProject\flask_project C:\Users\Administrator\AppData\Local\Programs\Python\Python313\Lib\unittest\case.py:597: RuntimeWarning: TestResult has no addDuration method =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D06BBA40>) tests.UserApiTestCase.test_01_create_user =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D22B7380>) tests.UserApiTestCase.test_02_get_users =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330680>) tests.UserApiTestCase.test_03_get_single_user =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D23307C0>) tests.UserApiTestCase.test_04_update_user =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330940>) tests.UserApiTestCase.test_05_delete_user =============================================================================== [ERROR] Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330B40>) tests.UserApiTestCase.test_06_invalid_create ------------------------------------------------------------------------------- Ran 6 tests in 0.014s FAILED (errors=6) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D06BBA40>) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D22B7380>) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330680>) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D23307C0>) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330940>) Error Traceback (most recent call last): Failure: builtins.tuple: (<class 'AttributeError'>, AttributeError("'UserApiTestCase' object has no attribute 'app'"), <traceback object at 0x00000204D2330B40>) 进程已结束,退出代码为 1 ,怎么解决这个问题

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