Crawling Questions Through Selenium

import selenium
from selenium import webdriver

def init_driver():
    driver = webdriver.chrome('C:/Users/Who/chromedriver.exe')
    driver.wait = WebDriverWait(driver, 5)
    return driver

Traceback (most recent call last):
  File "C:\Users\Who\Documents\atom\c", line 154, in <module>
    driver= init_driver()
  File "C:\Users\Who\Documents\atom\c", line 15, in init_driver
    driver = webdriver.chrome('C:/Users/Who/chromedriver.exe')
TypeError: 'module' object is not callable
[Finished in 0.902s]