如何在python中读取文本文件的任意行？

Question

I am working on a word guessing game and I have created a text file with each line being a word (it's 1000 lines).

I don't want to get the whole text file into memory. I just want to read a random line of the text file and put it into a string.

I did a quick search and everybody was reading the whole file into memory and getting a random line from there but I want to read a random line in form of a string.

Answer 1

if you know the exact total line numbers of your .txt file (1000 lines as you said) so use below code (with Pythons built-in linecache.getline() ), and if not , first get the total numbers to not get error.

 import linecache 
 filename = "words.txt" 

 line = linecache.getline(filename, 123)     # 123 is a random line number 
 print(line)