首页 > 解决方案 > Python:类型错误'float'对象不可迭代

问题描述

我的代码是:

for ep in range(10):
    for x, y in tqdm(train_iterator.gen_batches(batch_size=64, 
                                           data_type="train")):
        x_embed = embedder(tokenizer(str_lower(x)))
        y_onehot = onehotter(classes_vocab(y))
        cls.train_on_batch(x_embed, y_onehot)

结果:

<ipython-input-30-3f8c38399ce9> in <module>()
      2     for x, y in tqdm(train_iterator.gen_batches(batch_size=64, 
      3                                            data_type="train")):
----> 4         x_embed = embedder(tokenizer(str_lower(x)))
      5         y_onehot = onehotter(classes_vocab(y))
      6         cls.train_on_batch(x_embed, y_onehot)

1 frames
/usr/local/lib/python3.6/dist-packages/deeppavlov/models/preprocessors/str_lower.py in str_lower(batch)
     31         return batch.lower()
     32     else:
---> 33         return list(map(str_lower, batch))

TypeError: 'float' object is not iterable

我试图将其更改为 ep = int [float] 但这也不起作用。

标签: pythonfor-loopfloating-pointiterable

解决方案


str_lower()将字符串作为参数或可迭代类型并调用.lower()它。但是在您的代码x中是浮点类型。因此,无论何时作为参数调用它都会返回此错误list()x

>>> list(3.14)
Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    list(3.14)
TypeError: 'float' object is not iterable

所以你要么想要:

  • 确保x是一个字符串
  • 不打电话str_lower(x)

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