Appending Scraped Data to Dataframe - Python, Selenium -


i'm learning webscraping , working on eat24 (yelp's website). i'm able scrape basic data yelp, unable pretty simple: append data dataframe. here code, i've notated should simple follow along.

from selenium import webdriver import time import pandas pd selenium.webdriver.support.ui import webdriverwait selenium.webdriver.common.keys import keys  driver = webdriver.chrome()  #go eat24, type in zip code 10007, choose pickup , click search  driver.get("https://new-york.eat24hours.com/restaurants/index.php") search_area = driver.find_element_by_name("address_auto_complete") search_area.send_keys("10007") pickup_element = driver.find_element_by_xpath("//[@id='search_form']/div/table/tbody/tr/td[2]") pickup_element.click() search_button = driver.find_element_by_xpath("//*[@id='search_form']/div/table/tbody/tr/td[3]/button") search_button.click()   #scroll , down on page load more of 'infinity' list  in range(0,3):     driver.execute_script("window.scrollto(0,  document.body.scrollheight);")     driver.execute_script("window.scrollto(0,0);")     time.sleep(1)  #find menu urls  menu_urls = [page.get_attribute('href') page in  driver.find_elements_by_xpath('//*[@title="view menu"]')]  df = pd.dataframe(columns=['name', 'menuitems'])  #collect menu items/prices/name each url url in menu_urls:     driver.get(url)     menu_items = driver.find_elements_by_class_name("cpa")     menu_items = [x.text x in menu_items]     menu_prices = driver.find_elements_by_class_name('item_price')     menu_prices = [x.text x in menu_prices]     name = driver.find_element_by_id('restaurant_name')     menuitems = dict(zip(menu_items, menu_prices))     df['name'] = name     df['menuitems'] = menuitems  df.to_csv('test.csv', index=false)

the problem @ end. isn't adding menuitems + name successive rows in dataframe. have tried using .loc , other functions got messy removed attempts. appreciated!!

edit: error "valueerror: length of values not match length of index" when loop attempts add second set of menuitems/restaurant name dataframe

i figured out simple solution, not sure why didn't think of before. added "row" count goes 1 on each iteration, , used .loc place data in "row"th row

row = 0 url in menu_urls:     row +=1     driver.get(url)     menu_items = driver.find_elements_by_class_name("cpa")     menu_items = [x.text x in menu_items]     menu_prices = driver.find_elements_by_class_name('item_price')     menu_prices = [x.text x in menu_prices]     name = driver.find_element_by_id('restaurant_name').text     menuitems = [dict(zip(menu_items, menu_prices))]     df.loc[row, 'name'] = name     df.loc[row, 'menuitems'] = menuitems     print df

Comments

Post a Comment

Popular posts from this blog

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

javascript - Z-index in d3.js -

i have map , when hover effect on region of map below yellow line , circle, last ones disappear. how can solve problem? http://jsfiddle.net/ot21n9qx/ var arc = g.append("path") .style("fill", "none") .style("stroke", "yellow") .style("stroke-width", 2) .attr("d", "m" + pathorigin[0] + "," + pathorigin[1] + " q" + svgpoint[0] + "," + pathorigin[1] + " " + svgpoint[0] + "," + svgpoint[1]); var circlesize = d3.scale.linear() .domain([0, 0.5, 1]) .range([4, 10, 4]); svg not have z order draws objects in order created. need create path , circle after create highlight regions. here forked fiddle: http://jsfiddle.net/o00fzgaf/1/
Read more