Python Twitter Bot: Automatically Post Tweets

In this article I’m gonna explain how to create a Python Twitter bot which automates your browser and posts tweets automatically using the Selenium tool. This method doesn’t rely on any Twitter or third party API and rather posts tweets on your behalf directly using browser automation from scratch.

What will our Python Twitter bot do?

We are going to create a simple bot whose job is to pick a text block from a list of texts that we provide and then post a tweet containing a new text once everyday. The bot will launch the browser by itself, navigate to the Twitter homepage and then post the tweet from the web interface.

Tools to be Used

For creating this simple bot we only need a web browser, a webdriver to control the browser, a library to run that webdriver, and the mighty Python to glue it all together. If you are interested you might want to look into the Python Automation Tools article to learn about some of the most commonly used tools in Python automation.

Kicking off with creating our Python Twitter bot!

The first thing you’ll need to create a Python Twitter bot of course is to ensure that you have a Twitter account. We are going to need the username and password details of that account and we will assume the values to be EMAIL and PASSWORD respectively in the rest of this article.

Logging into our Twitter account

The first task we want to do with our Python Twitter bot is to log in to our account. You have to keep in mind that the web browser session that we will spawn using our Python program will run in an isolated mode, kind of like the incognito mode where each session is independent and the cookies or other information is not stored by the browser. This means every time you run the program you will have to log in again.

Let’s start with installing the two needed libraries: Selenium and PyAutoGUI

pip install selenium pyautogui

We are going to use Firefox and its webdriver known as geckodriver for this tutorial. You are free to use Chrome or any other browser and download the corresponding webdriver (eg Chromedriver). You can download the appropriate geckodriver binary for your Firefox version and operating system from this page.

After downloading and extracting the geckodriver binary put it in the same folder where you are going to keep your code for this Python twitter bot. Now let’s get to coding. I’ll share the entire code with you and then explain how I went about writing it.

import os
import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import pyautogui


def find_by_text(driver, text):
    return driver.find_element_by_xpath("//*[contains(text(), '%s')]" % text)


def find_form_ele(driver, text):
    uele = driver.find_element_by_xpath("//*[contains(text(), '%s')]" % text)
    uele = uele.find_element_by_xpath("..")
    return uele.find_element_by_xpath("./following-sibling::div/div/input")


def run():
    print("Started")
    usr_pwd = os.environ.get("PWD") or input("password: ")
    cur_dir = os.getcwd()
    geckopath = os.path.join(cur_dir, "geckodriver")
    driver = webdriver.Firefox(executable_path=geckopath)
    driver.get("https://twitter.com")
    time.sleep(5)
    uele = find_form_ele(driver, "Phone, email, or username")
    uele.send_keys("EMAIL")
    uele = find_form_ele(driver, "Password")
    uele.send_keys(usr_pwd)
    time.sleep(1)
    uele.submit()
    time.sleep(3)
    fele = driver.find_element_by_css_selector(".notranslate > div:nth-child(1) > div:nth-child(1)")
    fele = fele.find_element_by_xpath("./div")
    fele.click()
    time.sleep(1)
    pyautogui.write("""
“Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live”
-- John Woods 
    """)
    pyautogui.press(['tab'] * 6)
    pyautogui.press('enter')
    time.sleep(6)
    fele.submit()
    driver.quit()


if __name__ == "__main__":
    run()

The first thing we do is import the webdriver package from selenium library. The entry point of code is in the run function. First we obtain the password from either the environment variable or ask user for the input. Then we initialize the driver by creating a Firefox webdriver object: driver = webdriver.Firefox(executable_path=geckopath)

The first thing we want our browser automater to do is visit https://twitter.com: driver.get("https://twitter.com")

Then we look for the element in browser’s DOM containing the text “Phone, email, or username” as the corresponding element is situated adjacent to the username field which we need to fill. The username input field is a sibling of the parent of the aforementioned field and we have created a function which will find us the input field based on the adjacent element. After locating the element we automate sending key presses to the browser and enter the email: uele.send_keys(usr_pwd)

Similarly we locate the password field and fill the password. Following that we submit the associated log in form. We also put in random sleeps at a few places. Once the log in form is filled and submitted we’ll be redirected to the Twitter home page where we can post our tweet. We find the relevant element responsible for accepting the user input to post a tweet using these lines:

fele = driver.find_element_by_css_selector(".notranslate > div:nth-child(1) > div:nth-child(1)")
fele = fele.find_element_by_xpath("./div")

After locating the right element we click on it to get it on focus and be able to write in it. Here you will note that Twitter doesn’t make it easy to write in the form. Reason being that the box isn’t an input field but some complex JS element. Therefore we use another library called PyAutoGUI to enter our tweet as Selenium will otherwise complain that the input field isn’t visible. We type in the tweet using this statement: pyautogui.write(""" “Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live” -- John Woods """)

After that we locate the “Submit” button by navigating across the menu buttons by pressing TAB button six times. We follow it by pressing the ENTER button. And that’s it, our tweet is sent!

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