wss=WhitespaceSplit()bpt=BertPreTokenizer()# Pre-tokenize the textprint('Whitespace Pre-Tokenizer:')print_pretokenized_str(wss.pre_tokenize_str(text))#Whitespace Pre-Tokenizer:#"this","sentence's","content","includes:","characters,","spaces,",#"and","punctuation.",print('\n\nBERT Pre-T...
import string print(string.ascii_lowercase) 执行结果: abcdefghijklmnopqrstuvwxyz #ascii_uppercase:生成所有大写字母。 import string print(string.ascii_uppercase) 执行结果: ABCDEFGHIJKLMNOPQRSTUVWXYZ #digits:生成所有数字。 import string print(string.digits) 执行结果: 0123456789 #punctuation:生成所有标点符...
In the first example, your string includes a single quote as part of the text. To delimit the literal, you use double quotes. In the second example, you do the opposite.Escape Sequences in String LiteralsSometimes, you want Python to interpret a character or sequence of characters within a...
first element is a string of a word in the words list, and the second element is an integer representing the frequency of the word in the list. '''freq_dict =dict()forwordinwords:ifwordnotinfreq_dict: freq_dict[word] =1else: freq_dict[word] +=1corpus = [(word, freq_dict[word]...
Returns: corpus (list[tuple(str, int)]): A list of tuples where the first element is a string of a word in the words list, and the second element is an integer representing the frequency of the word in the list. ''' freq_dict = dict() for word in words: if word not in freq...
In this unit, you use the most common string methods in Python to manipulate strings, from simple transformations to more advanced search-and-replace operations.
Lastly, a pretty common use case for escape sequences that you might encounter in Python isANSI escape codes, which control the formatting and display of text in your terminal. For example, the following string literal contains cryptic codes that will make the wordreallyappear in red and underl...
s = 'I want %(count)d copies of %(word)s' % hash # %d for int, %s for string # 'I want 42 copies of garfield' 1. 2. 3. 4. 5. Del “del” 运算符表示删除。对于一些简单的情况,它可以删除一个变量的定义,仿佛该变量没有被定义过一样。Del 可以用于列表元素或者列表的片段来删除列表...
Write a Python function that takes a list of words and return the longest word and the length of the longest one. Sample Output: Longest word: Exercises Length of the longest word: 9 Click me to see the sample solution9. Remove nth character from a string....
The variable raw contains a string with 1,176,831 characters. (We can see that it is a string, using type(raw).) This is the raw content of the book, including many details we are not interested in, such as whitespace, line breaks(换行), and blank lines. Notice the \r and \n ...