Replace text element of one part in a for loop in Python

Question

My goal is to change the word in the sentence and write to a text file.

I created a text file:

filename = "/Users/Adam/Desktop/data.txt" text = open(filename, 'r') lines = text.readlines() 

I have this sample sentence: "I have a RED cat"

I want to change the "RED" color name and write (add) each sentence to the data.txt file.

 colours={red, blue, yellow, green, etc..} 

How can I take it into a loop, replace only this part and write each file to my txt file?

EDITED - perch request:

For example, I start my text here, what is a paragraph, so I want this tab or the space in front of it in a TXT file too ....... asfgas sagsaasgsagasgsagsaaggaggggg

And I continue my script when I come to "I have a RED cat"

And after that my text continues.

EDIT2:

 #!/usr/bin/python #!/bin/sh # -*- coding: utf-8 -*- from bs4 import BeautifulSoup from selenium import webdriver import urllib2 import subprocess import unicodecsv as csv import os import sys import io array = ["https://www.flightradar24.com/data/airports/gdn/departures", "https://www.flightradar24.com/data/airports/ktw/departures", "https://www.flightradar24.com/data/airports/krk/departures", "https://www.flightradar24.com/data/airports/wmi/departures", "https://www.flightradar24.com/data/airports/poz/departures", "https://www.flightradar24.com/data/airports/waw/departures", "https://www.flightradar24.com/data/airports/wro/departures", "https://www.flightradar24.com/data/airports/otp/departures", "https://www.flightradar24.com/data/airports/clj/departures", "https://www.flightradar24.com/data/airports/tsr/departures", "https://www.flightradar24.com/data/airports/bts/departures", "https://www.flightradar24.com/data/airports/lju/departures", "https://www.flightradar24.com/data/airports/alc/departures", "https://www.flightradar24.com/data/airports/bcn/departures", "https://www.flightradar24.com/data/airports/bio/departures", "https://www.flightradar24.com/data/airports/fue/departures", "https://www.flightradar24.com/data/airports/gro/departures", "https://www.flightradar24.com/data/airports/grx/departures", "https://www.flightradar24.com/data/airports/ibz/departures", "https://www.flightradar24.com/data/airports/xry/departures", "https://www.flightradar24.com/data/airports/ace/departures", "https://www.flightradar24.com/data/airports/mad/departures", "https://www.flightradar24.com/data/airports/agp/departures", "https://www.flightradar24.com/data/airports/pmi/departures", "https://www.flightradar24.com/data/airports/mah/departures", "https://www.flightradar24.com/data/airports/mjv/departures", "https://www.flightradar24.com/data/airports/reu/departures", "https://www.flightradar24.com/data/airports/sdr/departures", "https://www.flightradar24.com/data/airports/scq/departures", "https://www.flightradar24.com/data/airports/svq/departures", "https://www.flightradar24.com/data/airports/tfs/departures", "https://www.flightradar24.com/data/airports/tfn/departures", "https://www.flightradar24.com/data/airports/vlc/departures", "https://www.flightradar24.com/data/airports/zaz/departures", "https://www.flightradar24.com/data/airports/abz/departures", "https://www.flightradar24.com/data/airports/bfs/departures", "https://www.flightradar24.com/data/airports/bhd/departures", "https://www.flightradar24.com/data/airports/bhx/departures", "https://www.flightradar24.com/data/airports/brs/departures", "https://www.flightradar24.com/data/airports/cwl/departures", "https://www.flightradar24.com/data/airports/ema/departures", "https://www.flightradar24.com/data/airports/edi/departures", "https://www.flightradar24.com/data/airports/gla/departures", "https://www.flightradar24.com/data/airports/pik/departures", "https://www.flightradar24.com/data/airports/huy/departures", "https://www.flightradar24.com/data/airports/jer/departures", "https://www.flightradar24.com/data/airports/lba/departures", "https://www.flightradar24.com/data/airports/lpl/departures", "https://www.flightradar24.com/data/airports/ltn/departures", "https://www.flightradar24.com/data/airports/lhr/departures", "https://www.flightradar24.com/data/airports/lcy/departures", "https://www.flightradar24.com/data/airports/bqh/departures", "https://www.flightradar24.com/data/airports/stn/departures", "https://www.flightradar24.com/data/airports/lgw/departures", "https://www.flightradar24.com/data/airports/man/departures", "https://www.flightradar24.com/data/airports/sou/departures", "https://www.flightradar24.com/data/airports/ncl/departures", "https://www.flightradar24.com/data/airports/vie/departures", "https://www.flightradar24.com/data/airports/brq/departures", "https://www.flightradar24.com/data/airports/prg/departures", "https://www.flightradar24.com/data/airports/bud/departures", "https://www.flightradar24.com/data/airports/deb/departures", "https://www.flightradar24.com/data/airports/boj/departures", "https://www.flightradar24.com/data/airports/sof/departures", "https://www.flightradar24.com/data/airports/var/departures", "https://www.flightradar24.com/data/airports/ork/departures", "https://www.flightradar24.com/data/airports/dub/departures", "https://www.flightradar24.com/data/airports/noc/departures", "https://www.flightradar24.com/data/airports/kir/departures", "https://www.flightradar24.com/data/airports/snn/departures", "https://www.flightradar24.com/data/airports/mla/departures"] string = ("browser = webdriver.Firefox() datatable=[] browser.get('%s') WebDriverWait(browser, 5).until(lambda s: s.execute_script("return jQuery.active==0")) browser.find_element_by_xpath('//button[contains(text(), "Load earlier flights")]').click() time.sleep(5) html = browser.page_source soup=BeautifulSoup(html,"html.parser") \n") file="/Users/Adam/Desktop/data.txt" with open(file, "w") as f: for i in array: f.write(string % i) f.close() 

Answer 1

So, we can do something like below:

 array = ["red", "blue", "yellow", "green"] string = ("I have got a %s cat.\n") file="file.txt" with open(file, "w") as f: for i in array: f.write(string % i) 

---

To answer your above question in the comments. Yes, this will work if you have a few paragraphs:

 array = ["red", "blue", "yellow", "green"] string = ("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque at hendrerit enim, ut sodales arcu. Donec vel purus vel orci consequat ultrices et vitae metus. Donec auctor, elit placerat porttitor accumsan, diam massa faucibus justo, eu egestas eros leo a nibh. Aliquam erat volutpat. Curabitur elementum at ante quis auctor. Pellentesque egestas massa id dolor bibendum, a aliquet dui fermentum. In hac habitasse platea dictumst. Nunc luctus mollis ligula, vel condimentum enim semper ac.\n\nI have got a %s cat.\n\nIn risus velit, gravida ac nisl a, rutrum pulvinar mi. In et enim vel ex vehicula ultrices. Donec facilisis pellentesque ultricies. Cras ultrices nec ipsum tincidunt cursus. Integer et libero rhoncus, malesuada orci a, pellentesque mi. Quisque vitae fringilla sapien. Proin sit amet erat erat. Vivamus id condimentum ligula. Donec lobortis tincidunt egestas. In convallis rutrum laoreet.\n\nSed ligula sem, mollis ac varius ac, laoreet et arcu. Integer id enim sollicitudin, eleifend nisi vitae, sagittis massa. Etiam eleifend rhoncus varius. Vestibulum condimentum nibh arcu, nec egestas dolor convallis eu. Sed gravida metus elit, vitae dictum augue vestibulum at. Aenean facilisis ipsum vel tincidunt facilisis. In interdum vitae mauris at malesuada.\n\n\n") file="file.txt" with open(file, "w") as f: for i in array: f.write(string % i) 

---

On the side of the note, believe it or not, we can condense it all to one line:

 open("file.txt", "w").write("\n".join("I have got a %s cat." % i for i in ["red", "blue", "yellow", "green"])+"\n") 

Python is sometimes wonderful.

Answer 2

 filename = "/data.txt" text = open(filename, 'w') colours=['red', 'blue', 'yellow', 'green'] for c in colours: line = "I have got a %s cat\n" % c text.write(line) text.close() 

Answer 3

Add the following code to the script

 text.close() text = open(filename, 'a') line = "I have got a %s cat\n" colours= ['red', 'blue', 'yellow', 'green'] for colour in colours: text.write(line %color) text.close() 

PS Never forget to close your files.