Question

我编写了一个函数，用于从Twitter数据集中的推文中删除主题标签。我正在尝试使用map函数在pandas数据框中的推文上运行它。但我不断收到此错误：“ TypeError：预期的字符串或类似字节的对象”

我已经搜索了错误消息，并在这里查看了很多类似的问题，但是到目前为止，仍然没有任何效果。是否需要将tweet对象转换为其他类型？

def remove_hashtags(tweet):
    no_hashtags = []
    if len(re.findall("(#[^#\s]+)", tweet)) > 0:
        tweet = re.sub("(#[^#\s]+)", "", tweet)
    no_hashtags.append(tweet)
    return no_hashtags[0]

text_all_removed = text_no_links.map(remove_hashtags)

TypeError                                 Traceback (most recent call last)
<ipython-input-143-84c94835f61a> in <module>
----> 1 text_all_removed = text_no_links.map(remove_hashtags)

~/venv/lib/python3.6/site-packages/pandas/core/series.py in map(self, arg, na_action)
   3380         """
   3381         new_values = super(Series, self)._map_values(
-> 3382             arg, na_action=na_action)
   3383         return self._constructor(new_values,
   3384                                  index=self.index).__finalize__(self)

~/venv/lib/python3.6/site-packages/pandas/core/base.py in _map_values(self, mapper, na_action)
   1216 
   1217         # mapper is a function
-> 1218         new_values = map_f(values, mapper)
   1219 
   1220         return new_values

pandas/_libs/lib.pyx in pandas._libs.lib.map_infer()

<ipython-input-142-5e6df146cb08> in remove_hashtags(tweet)
      3 def remove_hashtags(tweet):
      4     no_hashtags = []
----> 5     if len(re.findall("(#[^#\s]+)", tweet)) > 0:
      6         tweet = re.sub("(#[^#\s]+)", "", tweet)
      7     no_hashtags.append(tweet)

~/venv/lib64/python3.6/re.py in findall(pattern, string, flags)
    220 
    221     Empty matches are included in the result."""
--> 222     return _compile(pattern, flags).findall(string)
    223 
    224 def finditer(pattern, string, flags=0):

TypeError: expected string or bytes-like object

text_no_links.head（）的输出


0    [ #bbcqt Remoaners on about post Brexit racial...
1    [@sarahwollaston Shut up, you like all remoane...
2    [ what have the Brextremists ever done for us ...
3                     [ Remoaner in bizarre outburst ]
4    [ Anyone who disagrees with brexit is called n...
Name: text, dtype: object

Twitter数据和python-TypeError：预期的字符串或类似字节的对象

0 个答案: