关键字搜索并导出到Python中输出.txt文件中的doc(Keyword Search and exporting to output doc in .txt file in Python)

 我试图编写一个python函数来读取文本文件的每一行，并搜索关键字：如果关键字在行中，我试图将行导出到新的文本文档中。 这本质上会创建一种过滤文本行的方式。 这是我到目前为止： 
 
#trying to filter and print a line that contains a keyword in a csv or txt 

file
import subprocess
import csv

def findandsearch(word):
    textfile=open('textHCPC17_CONTR_ANWEB.txt', 'r+')
    #openign the selected text file
    outputfile=input('CMSOUTPUT.txt')
    #classifying an ouput file
    word=s'education' #designating a keyword
    for line in textfile:
        textfile.readline()
        if word in textfile: #creating if clause
            print('this is a match') #printing that this is match 
            outputfile.write(word) #I want to write the selected line of the text in the output file
            textfile.close() #closing the original file
            print(word) #I want to print the results
            return #ending function
 
 任何帮助将不胜感激，因为我没有遇到语法错误，但我的输出文件是空白的。 

I'm trying to write a python function that reads each individual line of a text file and searches for a keyword: if the keyword is in the line I'm trying to make export the line into a new text document. This would essentially create a way to filter lines of text. Here is what I have so far:
 
#trying to filter and print a line that contains a keyword in a csv or txt 

file
import subprocess
import csv

def findandsearch(word):
    textfile=open('textHCPC17_CONTR_ANWEB.txt', 'r+')
    #openign the selected text file
    outputfile=input('CMSOUTPUT.txt')
    #classifying an ouput file
    word=s'education' #designating a keyword
    for line in textfile:
        textfile.readline()
        if word in textfile: #creating if clause
            print('this is a match') #printing that this is match 
            outputfile.write(word) #I want to write the selected line of the text in the output file
            textfile.close() #closing the original file
            print(word) #I want to print the results
            return #ending function
 
Any help would be appreciated as I am not running into syntax error but my output file is blank.

原文：https://stackoverflow.com/questions/45378168