How to properly use By class in selenium with python

Question

I've written a code to test a page in python with selenium. The code works but now I'm trying to rewrite it better.
I have created a locators.py file as described in the following documentation: selenium python binding - page objects.
For simple locators this is straightforward. This is what I've done so far:

from selenium.webdriver.common.by import By

class PhotoHomePageLocators(object):
"""A class for photographer home page locators. All photographer interface home page locators should come here"""
add_new_project_btn = (By.CLASS_NAME, 'addProject')
view_all_projects_btn = (By.CLASS_NAME, 'viewAllProjects')


class NameCoverPageLocators(object):
"""A class for name and cover home page locators. All name and cover page locators should come here"""
project_name_txt_box = (By.XPATH, '//*[@id="rform_pt2_0"]')
client_name_txt_box = (By.XPATH, '//*[@id="rform_pt2_1"]')
client_email_txt_box = (By.XPATH, '//*[@id="rform_pt2_2"]')

but I have the following line in my code which I'm uncertain how to write so it fits the above syntax:

driver.find_element_by_class_name('coverUpload').find_element_by_class_name('pButton').click()

I'm locating a class within a class, there are several pButton classes in the page, but only one inside the coverUpload class.

Answer 1

You should be able to arrange the line you are asking about as follows:

someName = driver.find_element_by_class_name('coverUpload')
ButtonName = someName.find_element_by_class_name('pButton')
ButtonName.click()

Answer 2

instead of 2 class search maybe you can use relative Xpath if That element is unique.

elem = driver.find_element(By.XPATH, '//*[@class="coverUpload"]//*[@class="pButton"]')
elem.click()