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我正在尝试使用 Python 3 中的正则表达式从文本文件中的 wiki 标题转储中提取英文标题。wiki 转储还包含其他语言的标题和一些符号。下面是我的代码:
with open('/Users/some/directory/title.txt', 'rb')as f:
text=f.read()
letters_only = re.sub(b"[^a-zA-Z]", " ", text)
words = letters_only.lower().split()
print(words)
但是我得到一个错误:
TypeError: sequence item 1: expected a bytes-like object, str found
行:letters_only = re.sub(b[^a-zA-Z]", "", text)
但是,我正在使用 b''
将输出作为字节类型,下面是文本文件的示例:
Destroy-Oh-Boy!!
!!Que_Corra_La_Voz!!
!!_(chess)
!!_(disambiguation)
!'O!Kung
!'O!Kung_language
!'O-!khung_language
!337$P34K
!=
!?
!?!
!?Revolution!?
!?_(chess)
!A_Luchar!
!Action_Pact!
!Action_pact!
!Adios_Amigos!
!Alabadle!
!Alarma!
!Alarma!_(album)
!Alarma!_(disambiguation)
!Alarma!_(magazine)
!Alarma!_Records
!Alarma!_magazine
!Alfaro_Vive,_Carajo!
!All-Time_Quarterback!
!All-Time_Quarterback!_(EP)
!All-Time_Quarterback!_(album)
!Alla_tu!
!Amigos!
!Amigos!_(Arrested_Development_episode)
!Arriba!_La_Pachanga
!Ask_a_Mexican!
!Atame!
!Ay,_Carmela!_(film)
!Ay,_caramba!
!BANG!
!Bang!
!Bang!_TV
!Basta_Ya!
!Bastardos!
!Bastardos!_(album)
!Bastardos_en_Vivo!
!Bienvenido,_Mr._Marshall!
!Ciauetistico!
!Ciautistico!
!DOCTYPE
!Dame!_!Dame!_!Dame!
!Decapitacion!
!Dos!
!Explora!_Science_Center_and_Children's_Museum
!F
!Forward,_Russia!
!Forward_Russia!
!Ga!ne_language
!Ga!nge_language
!Gã!ne
!Gã!ne_language
!Gã!nge_language
!HERO
!Happy_Birthday_Guadaloupe!
!Happy_Birthday_Guadalupe!
!Hello_Friends
我在网上搜索过,但没有成功。任何帮助将不胜感激。
最佳答案
问题出在您提供的 repl
参数上,它不是 bytes
对象:
letters_only = re.sub(b"[^a-zA-Z]", " ", b'Hello2World')
# TypeError: sequence item 1: expected a bytes-like object, str found
相反,提供 repl
作为字节实例 b""
:
letters_only = re.sub(b"[^a-zA-Z]", b" ", b'Hello2World')
print(letters_only)
b'Hello World'
注意:如果你不是在寻找byte
,不要用b
作为字面量前缀,也不要用rb
打开文件> 序列。
关于python - 发现 TypeError : sequence item 1: expected a bytes-like object, str,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39818425/
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