How can I loop scraping data for multiple pages in a website using python and beautifulsoup4

I am trying to scrape data from the PGA.com website to get a table of all of the golf courses in the United States. In my CSV table I want to include the Name of the golf course ,Address ,Ownership ,Website , Phone number. With this data I would like to geocode it and place into a map and have a local copy on my computer

I utilized Python and Beautiful Soup4 to extract my data. I have reached as far to extract the data and import it into a CSV but I am now having a problem of scraping data from multiple pages on the PGA website. I want to extract ALL THE GOLF COURSES but my script is limited only to one page I want to loop it in away that it will capture all data for golf courses from all pages found in the PGA site. There are about 18000 gold courses and 900 pages to capture data

Attached below is my script. I need help on creating code that will capture ALL data from the PGA website and not just one site but multiple. In this manner it will provide me with all the data of gold courses in the United States.

Here is my script below:

import csv
import requests 
from bs4 import BeautifulSoup
url = "http://www.pga.com/golf-courses/search?searchbox=Course+Name&searchbox_zip=ZIP&distance=50&price_range=0&course_type=both&has_events=0"

r = requests.get(url)

soup = BeautifulSoup(r.content)

g_data1=soup.find_all("div",{"class":"views-field-nothing-1"})
g_data2=soup.find_all("div",{"class":"views-field-nothing"})

courses_list=[]

for item in g_data2:
     try:
          name=item.contents[1].find_all("div",{"class":"views-field-title"})[0].text
     except:
          name=''
     try:
          address1=item.contents[1].find_all("div",{"class":"views-field-address"})[0].text
     except:
          address1=''
     try:
          address2=item.contents[1].find_all("div",{"class":"views-field-city-state-zip"})[0].text
     except:
          address2=''
     try:
          website=item.contents[1].find_all("div",{"class":"views-field-website"})[0].text
     except:
          website=''   
     try:
          Phonenumber=item.contents[1].find_all("div",{"class":"views-field-work-phone"})[0].text
     except:
          Phonenumber=''      

     course=[name,address1,address2,website,Phonenumber]
     courses_list.append(course)

     with open ('filename5.csv','wb') as file:
          writer=csv.writer(file)
          for row in courses_list:
               writer.writerow(row)    

#for item in g_data1:
     #try:
          #print item.contents[1].find_all("div",{"class":"views-field-counter"})[0].text
     #except:
          #pass  
     #try:
          #print item.contents[1].find_all("div",{"class":"views-field-course-type"})[0].text
     #except:
          #pass

#for item in g_data2:
   #try:
      #print item.contents[1].find_all("div",{"class":"views-field-title"})[0].text
   #except:
      #pass
   #try:
      #print item.contents[1].find_all("div",{"class":"views-field-address"})[0].text
   #except:
      #pass
   #try:
      #print item.contents[1].find_all("div",{"class":"views-field-city-state-zip"})[0].text
   #except:
      #pass

This script only captures 20 at a time and I want to capture all in one script which account for 18000 golf courses and 900 pages to scrape form.