Write a Python program to remove words from a string of length between 1 and a given number. Sample Solution: Python Code: importre text="The quick brown fox jumps over the lazy dog."# remove words between 1 and 3shortword=re.compile(r'\W*\b\w{1,3}\b')print(shortword.sub('',...
(word): for letter in word: if letter in invalid_chars: return False return Truedef clean_text(text): text = text.split(' ') # Convert text to a list of words text_clean = '' for word in text: if if_clean(word): text_clean = text_clean+' '+word return text_clean[1:]# ...
Write a Python program to remove duplicate words from a given list of strings. Sample Solution: Python Code: # Define a function 'unique_list' that removes duplicates from a listdefunique_list(l):# Create an empty list 'temp' to store unique elementstemp=[]# Iterate through the elements ...
Thestrip()method is useful when dealing with user input as it gets rid of surrounding spaces in the string. This means it doesn’t just remove spaces, it also removes tabs and new line characters, which are all characters we don’t usually want in user-provided strings. There are two mo...
students.remove("Bob") # 移除首个匹配项 popped_student = students.pop() # 删除并返回最后一个元素 del students[3] # 删除指定位置的元素 students.clear() # 清空整个列表 # 修改元素 students[1] = "Bobby" # 替换指定位置的元素2.1.2 字典(Dictionary) ...
importnltkfromnltk.tokenizeimportword_tokenize text="Hello, World! This is a sample text."# 分词tokens=word_tokenize(text)# 删除标点符号words=[wordforwordintokensifword.isalpha()]# 删除停用词stopwords=nltk.corpus.stopwords.words("english")filtered_words=[wordforwordinwordsifwordnotinstopwords]# ...
You can use thereplace()method to remove all the whitespace characters from the string, including from between words. Declare the string variable: s=' Hello World From DigitalOcean \t\n\r\tHi There ' Copy Use thereplace()method to replace spaces with an empty string: ...
276 If chars is given and not None, remove characters in chars instead. 277 278 """ 279 return s.rstrip(chars) 280 281 282 # Split a string into a list of space/tab-separated words 283 def split(s, sep=None, maxsplit=-1): 284 """split(s [,sep [,maxsplit]]) -> list of ...
for c in string.punctuation: s=s.replace(c,"") return s print"sets :",timeit.Timer('f(s)', 'from __main__ import s,test_set as f').timeit(1000000) print"regex :",timeit.Timer('f(s)', 'from __main__ import s,test_re as f').timeit(1000000) ...
13、f-string格式化字符串 四、列表 1、列表访问 2、列表新增操作 3、pop、del和remove删除元素 3、列表切片、合并 4、列表for循环操作 5、列表in和not in 6、列表多重赋值操作 7、列表相关方法 8、列表空判断 9、列表的最大值、最小值和总和