尝试在单独的文本文件中查找单词

Question

So I'm currently trying to figure out how to find a word in a separate text file. I'm using Python3 and I'm trying to make a server and client thread and the client is supposed to input a word. The server then is supposed to find the word in the list given to me that's in a txt file. How would I go about searching for the word in the file. Do I import it with a header or is there a different approach I should use?

Answer 1

You can try something like this:

with open(r"C:\Path\to\file.txt", 'r') as file:
    content = file.read()
if ("my word" in content):
    print("Your string is in the file")
else:
    print("String not found")

Explaination

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The open built-in function is used like this:

file = open(r"C:\\Your\path\{file_name}.{file_extension}", mode_for_opening_the_file)

The default mode is 'r' , which means you are going to read the file.

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You can handle a file in more ways, the two most used of which are:

1. The with keyword
2. The simple assignation of the file object to a variable

First example:

with open(r"MyFile.json", 'r') as file:
    print(file.read())

Second example:

file = open(r"MyFile.json", 'w+')
file.write("Hello World")
file.close() # The with method automatically close the file, saving all the changes

Some more information

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If you want more information about opening files with python, check this:

• Reading and Writing files
• Write to an existing file
• Reading text files