PYTHON：在文本文件中搜索一个单词，其中包含单词之间的空格

Question

我不知道如何在文本文件中搜索书名，因为书名之间有空格。

这是我试图搜索的文本文件：

#Listing showing sample book details 
#AUTHOR, TITLE, FORMAT, PUBLISHER, COST?, STOCK, GENRE
P.G. Wodehouse, Right Ho Jeeves, hb, Penguin, 10.99, 5, fiction
A. Pais, Subtle is the Lord, pb, OUP, 12.99, 2, biography
A. Calaprice, The Quotable Einstein, pb, PUP, 7.99, 6, science
M. Faraday, The Chemical History of a Candle, pb, Cherokee, 5.99, 1, science
C. Smith, Energy and Empire, hb, CUP, 60, 1, science
J. Herschel, Popular Lectures, hb, CUP, 25, 1, science
C.S. Lewis, The Screwtape Letters, pb, Fount, 6.99, 16, religion
J.R.R. Tolkein, The Hobbit, pb, Harper Collins, 7.99, 12, fiction
C.S. Lewis, The Four Loves, pb, Fount, 6.99, 7, religion
E. Heisenberg, Inner Exile, hb, Birkhauser, 24.95, 1, biography
G.G. Stokes, Natural Theology, hb, Black, 30, 1, religion

我的代码：

desc = input('Enter the title of the book you would like to search for: ')
for bookrecord in book_list:
    if desc in bookrecord:
        print('Book found')        
    else:
        print('Book not found')
        break

有人知道怎么做吗？

Answer 1

您可以使用拆分功能删除空格：

handle = open("book list.txt")#Open a file handle of the given file
            
for lines in handle:#A variable 'lines' that will iterate through all the variables in the file
    words = lines.split(,)#splits the file text into separate words and removes extra spaces.(the comma tells it to split where there are commas)
        
desc = input('Enter the title of the book you would like to search for: ')
        
for bookrecord in words:
    if desc in bookrecord:
        print('Book found')
else:
    print('Book not found')
         break

在运行之前修复代码中的缩进，否则会报错。

Answer 2

如果你的文件是 csv 那么：

import pandas as pd

inp = input("Enter the books name: ")

bk = pd.read_csv('book_list.csv')#enter your file name
for row in bk.iterrows():
    if inp in row:
        print("Book found")
    else:
        print("Book not found")

注意：这仅在您的文件是 csv 时才有效

Answer 3

您可以将文件读入 python 列表，这样每次您想从文件中查找单个书名或作者时，都不必一次又一次地重新加载文件。

with open("file", "r") as file:
    data = file.readlines()

如果文件很大，这会使您的代码更快！现在，您可以简单地找到您想要查找的内容：

text_to_find = "C. Smith"

for idx, line in enumerate(data):
    if text_to_find in line:
        print(f"{text_to_find} FOUND AT {idx} LINE")

注意f-string的使用！

Answer 4

给你：

def writeData(data):
    
    with open('file.txt', 'a') as w:
        w.write(data)

def searchData(title):
    data = ''
    title_list = []
    with open('file.txt') as r:
        data = r.read()
    
    title_list = data.split(', ')[1::6]
    print(title_list)
    
    stock = data.split(', ')[5::6]

    print(stock)
    
    if title in title_list:
        print('Book Found')

    else:
        print('Book Not Found')


writeData('P.G. Wodehouse, Right Ho Jeeves, hb, Penguin, 10.99, 5, fiction')
writeData('A. Pais, Subtle is the Lord, pb, OUP, 12.99, 2, biography')

searchData('Right Ho Jeeves')