Looping through multiple pages with changing url

[Qaruri]

Hi, I am new to web scraping and have just managed to write my first working script. However it is only able to extract data from the first page. I have not been able to apply solutions offered online successfully. Will be might glad if someone can assist me write a complete scrip that extracts data from all pages. below is my current working script

from urllib.request import urlopen as uReq
from bs4 import BeautifulSoup as soup

my_url = 'https://www.merchantcircle.com/search?q=self-storage&qn='

#opens connection, grabbing the page
uClient = uReq(my_url)
page_html = uClient.read()
uClient.close()

#page parser
page_soup = soup(page_html, "html.parser")

businesses = page_soup.findAll("div",{"class":"hInfo vcard"})


filename = "storage.csv"
f = open(filename, "w")

#headers = "brand, product_name, price, shipping\n"
headers = "biz_name, biz_address, biz_phone_num\n"

f.write(headers)

for business in businesses:
		

	#grabs business name
	biz_name = business.h2.a.text.strip()

	#grabs business address
	address = business.find("a",{"class":"directions"})
	biz_address = address.text.strip()	


	#grabs phone number
	phone_num = business.find("a",{"class":"phone digits tel"})
	biz_phone_num = phone_num.text.strip()



	print("biz_name: " + biz_name)
	print("biz_address: " + biz_address)
	print("biz_phone_num: " + biz_phone_num)

	f.write(biz_name + "," + biz_address.replace(",", "|") + "," + biz_phone_num + "\n")

f.close()