Python float' 对象没有属性 'lower'
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float' object has no attribute 'lower'
提问by
I'm facing this error and I'm really not able to find the reason for it.
Can somebody please point out the reason for it ?
我正面临这个错误，我真的找不到原因。
有人可以指出原因吗？
for i in tweet_raw.comments:
mns_proc.append(processComUni(i))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-416-439073b420d1> in <module>()
1 for i in tweet_raw.comments:
----> 2 tweet_processed.append(processtwt(i))
3
<ipython-input-414-4e1b8a8fb285> in processtwt(tweet)
4 #Convert to lower case
5 #tweet = re.sub('RT[\s]+','',tweet)
----> 6 tweet = tweet.lower()
7 #Convert www.* or https?://* to URL
8 #tweet = re.sub('((www\.[\s]+)|(https?://[^\s]+))','',tweet)
AttributeError: 'float' object has no attribute 'lower'
A second similar error that facing is this :
面临的第二个类似错误是：
for i in tweet_raw.comments:
tweet_proc.append(processtwt(i))
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-423-439073b420d1> in <module>()
1 for i in tweet_raw.comments:
----> 2 tweet_proc.append(processtwt(i))
3
<ipython-input-421-38fab2ef704e> in processComUni(tweet)
11 tweet=re.sub(('[http]+s?://[^\s<>"]+|www\.[^\s<>"]+'),'', tweet)
12 #Convert @username to AT_USER
---> 13 tweet = re.sub('@[^\s]+',' ',tweet)
14 #Remove additional white spaces
15 tweet = re.sub('[\s]+', ' ', tweet)
C:\Users\m1027201\AppData\Local\Continuum\Anaconda\lib\re.pyc in sub(pattern, repl, string, count, flags)
149 a callable, it's passed the match object and must return
150 a replacement string to be used."""
--> 151 return _compile(pattern, flags).sub(repl, string, count)
152
153 def subn(pattern, repl, string, count=0, flags=0):
TypeError: expected string or buffer
Shall I check whether of not a particluar tweet is tring before passing it to processtwt() function ? For this error I dont even know which line its failing at.
在将特定推文传递给 processtwt() 函数之前，我是否应该检查它是否不是特定推文？对于这个错误，我什至不知道它在哪一行失败。
回答by d-coder
My answer will be broader than shalini answer. If you want to check if the object is of type strthen I suggest you check typeof object by using isinstance()as shown below. This is more pythonic way.
我的答案将比 shalini 的答案更广泛。如果您想检查对象是否属于类型，str那么我建议您type使用isinstance()如下所示的方法检查对象。这是更pythonic的方式。
tweet = "stackoverflow"
## best way of doing it
if isinstance(tweet,(str,)):
print tweet
## other way of doing it
if type(tweet) is str:
print tweet
## This is one more way to do it
if type(tweet) == str:
print tweet
All the above works fine to check the type of object is string or not.
以上所有方法都可以很好地检查对象的类型是否为字符串。
回答by SIRI RAAVI
Just try using this: tweet = str(tweet).lower()
试试用这个： tweet = str(tweet).lower()
Lately I've been facing many of these errors and converting them to string before applying lower() always worked for me. Thanks!
最近，我遇到了许多这样的错误，并在应用lower() 之前将它们转换为字符串总是对我有用。谢谢！
