def mars_hs(browser):
url = 'https://astrogeology.usgs.gov/search/results?q=hemisphere+enhanced&k1=target&v1=Mars'
webpage = aux.getParsedWebpage(browser, url)
# get all unique links to the photo pages first
page_links_list = []
page_links = soup.find_all(webpage, 'a', class_='itemLink product-item')
[page_links_list.append(page.get('href')) for page in page_links]
page_links_list = list(set(page_links_list))
image_list = []
# iterate through links and pull URL for full size images
for link in page_links_list:
url = f'https://astrogeology.usgs.gov{link}'
webpage = aux.getParsedWebpage(browser, url)
# get image title
title = soup.find(webpage, 'h2', class_='title').get_text()
# get full size image link
downloads_section = soup.find(webpage, 'div', class_='downloads')
image_link = soup.find(downloads_section, 'a').get('href')
# add title and full-size image url to dict
image_list.append({'title':title, 'image_url':image_link})
return image_list
def jpl_image(browser):
# Scrape the URL and return
url = 'https://www.jpl.nasa.gov/spaceimages/?search=&category=Mars'
webpage = aux.getParsedWebpage(browser, url)
# get and construct url for largest size of featured image available
featured_url = soup.find(webpage, 'a', class_='button fancybox').get('data-fancybox-href')
featured_url = "https://www.jpl.nasa.gov/spaceimages/images/largesize/PIA11591_hires.jpg"
return featured_url
def mars_weather_tweet(browser):
url = 'https://twitter.com/marswxreport?lang=en'
webpage = aux.getParsedWebpage(browser, url)
std_tweet_class = 'TweetTextSize TweetTextSize--normal js-tweet-text tweet-text'
# pull text of most recent tweet about the weather
first_tweet = soup.find_all(webpage, 'p', class_= std_tweet_class)[0].get_text()
return first_tweet
def mars_news2(browser):
url = 'https://mars.nasa.gov/news/?page=0&per_page=40&order=publish_date+desc%2Ccreated_at+desc&search=&category=19%2C165%2C184%2C204&blank_scope=Latest'
webpage = aux.getParsedWebpage(browser, url)
# pull the most recent headlines + info from the website
text_grouped = soup.find_all(webpage, 'div', class_='article_teaser_body')
# Scrape the first article title and teaser paragraph text; return them
first_paragraph = aux.getParsedTextList(text_grouped)[0]
return first_paragraph
def mars_facts(browser):
url = 'https://space-facts.com/mars/'
webpage = aux.getParsedWebpage(browser, url)
# create dict to hold facts
fact_dict = {}
# get all rows in the facts table and parse into dict
facts_all = soup.find(webpage,
'table',
class_='tablepress tablepress-id-p-mars').find_all('tr')
for fact in facts_all:
fact_dict[soup.find(fact, 'strong').get_text()] = (soup.find(fact, class_='column-2').get_text())
# convert to Dataframe and to HTML table
fact_df = pd.DataFrame.from_dict(fact_dict, orient='index')
fact_df.rename(columns={0:'Facts about Mars'}, inplace=True)
fact_html = pd.DataFrame.to_html(fact_df)
return fact_html
def scrape():
# Import dependencies
from bs4 import BeautifulSoup as soup
from splinter import Browser
import pandas as pd
import aux_func as aux
# initialize splinter browser
browser = Browser('chrome',
**{"executable_path": "/usr/local/bin/chromedriver"},
headless=False)
# Scrape NASA Mars site for headlines, dates, and content preview
url = 'https://mars.nasa.gov/news/'
webpage = aux.getParsedWebpage(browser, url)
# Scrapes most recent headlines, date, and text in order
headlines_grouped = soup.find_all(webpage, 'h3', class_=None)
dates_grouped = soup.find_all(webpage, 'div', class_='list_date')
text_grouped = soup.find_all(webpage, 'div', class_='article_teaser_body')
# Iterates and generates list of all items
zip_headlines = list(
zip(aux.getParsedTextList(headlines_grouped),
aux.getParsedTextList(dates_grouped),
aux.getParsedTextList(text_grouped)))
# Generate Dataframe from raw data
headline_df = pd.DataFrame(zip_headlines)
headline_df.rename(columns={
0: 'headline',
1: 'date',
2: 'text'
},
inplace=True)
headline_df
# Scrape JPL Mars website for most recent image
# For some reason this pulls an image of Neptune
url = 'https://www.jpl.nasa.gov/spaceimages/?search=&category=Mars'
webpage = aux.getParsedWebpage(browser, url)
# Get title and description
featured_title = soup.find(webpage, 'h1',
class_='media_feature_title').get_text()
featured_description = soup.find(
webpage, 'a', class_='button fancybox').get('data-description')
#
featured_url = soup.find(
webpage, 'a', class_='button fancybox').get('data-fancybox-href')
featured_url = f'https://www.jpl.nasa.gov{featured_url}'
print(featured_title)
print(featured_description)
print(featured_url)
#Mars Twitter Parse
#Hardcoded a single tweet for now for testing (not all tweets are weather reports, causes errors)
url = 'https://twitter.com/MarsWxReport/status/1038219633726316544'
webpage = aux.getParsedWebpage(browser, url)
#std_tweet_class = 'TweetTextSize TweetTextSize--normal js-tweet-text tweet-text'
std_tweet_class = 'TweetTextSize TweetTextSize--jumbo js-tweet-text tweet-text'
# pull text of most recent tweet about the weather
mars_weather = soup.find_all(webpage, 'p',
class_=std_tweet_class)[0].get_text()
# create split string to pull apart and add to dataframe
mars_weather_split = recent_weather.split(',')
# create dictionary to turn into a dataframe
weather_dict = {
'mars_date': f'{mars_weather.split("(")[0]}',
'earth_date': f'{mars_weather.split("(")[1].split(")")[0]}',
'temp_high': f'{mars_weather_split[1].split(" ")[2]}',
'temp_low': f'{mars_weather_split[2].split(" ")[2]}',
'pressure': f'{mars_weather_split[3].split(" ")[3]}',
'daylight': f'{mars_weather_split[4].split(" ")[2]}'
}
weather_df = pd.DataFrame.from_dict(weather_dict, orient='index')
weather_df = weather_df.rename(columns={0: 'Most Recent Weather on Mars'})
weather_df
# Mars Facts
url = 'https://space-facts.com/mars/'
webpage = aux.getParsedWebpage(browser, url)
# dictionary to hold facts
facts_dict = {}
# get rows in facts table, parse into dictionary
facts_all = soup.find(
webpage, 'table',
class_='tablepress tablepress-id-mars').find_all('tr')
for fact in facts_all:
facts_dict[soup.find(fact, 'strong').get_text()] = (soup.find(
fact, class_='column-2').get_text())
# convert fact_dict to DF and HTML
facts_df = pd.DataFrame.from_dict(facts_dict, orient='index')
facts_df.rename(columns={0: 'Facts about Mars'}, inplace=True)
facts_html = pd.DataFrame.to_html(facts_df)
facts_df
# Mars Hemispheres
url = 'https://astrogeology.usgs.gov/search/results?q=hemisphere+enhanced&k1=target&v1=Mars'
webpage = aux.getParsedWebpage(browser, url)
base_url = 'https://astrogeology.usgs.gov/'
# get all unique links to photo pages
page_links_list = []
page_links = soup.find_all(webpage, 'a', class_='itemLink product-item')
[page_links_list.append(page.get('href')) for page in page_links]
page_links_list = list(set(page_links_list))
image_list = []
# iterate through links and pull image URLs
for link in page_links_list:
url = f'https://astrogeology.usgs.gov{link}'
webpage = aux.getParsedWebpage(browser, url)
# get image title
title = soup.find(webpage, 'h2', class_='title').get_text()
# get full size image link
downloads_section = soup.find(webpage, 'div', class_='downloads')
image_link = soup.find(downloads_section, 'a').get('href')
# add title and full-size image url to dict
image_list.append({'title': title, 'image_url': image_link})
# create DF
image_df = pd.DataFrame(image_list, columns=['title', 'image_url'])
image_df
# Return dictionary
scrape_dict = {
'headlines': zipped_headlines,
'featured_img_url': featured_url,
'weather': weather_html,
'facts': fact_html,
'image_urls': image_list
}
return scrape_results_dict
def scrape():
"""
Returns a dictionary with images and data on Mars. Contains the
following information in the following formats:
- Recent headlines (List)
- Featured image URL (string)
- Most recent weather (HTML Table)
- Facts (HTML Table)
- Image URLs for Hemisphere Pictures (List of Dict)
"""
# ------------------------------------------------------------
# Step 1: Import all required modules and initialize all tools
# ------------------------------------------------------------
from bs4 import BeautifulSoup as soup
from splinter import Browser
import pandas as pd
import aux_func as aux
# initialize splinter browser
browser = Browser('chrome',
**{"executable_path": "/usr/local/bin/chromedriver"},
headless=False)
# ------------------------------------------------------------
# Step 2: Scrape Nasa Mars News website for recent headlines
# with headlines, dates, and content preview
# ------------------------------------------------------------
url = aux.hidden_urls[0]
try:
webpage = aux.getParsedWebpage(browser, url)
# pull the most recent headlines + info from the website
headlines = soup.find_all(webpage, 'h3', class_=None)
dates = soup.find_all(webpage, 'div', class_='list_date')
text = soup.find_all(webpage, 'div', class_='article_teaser_body')
# iterate through and generate lists of all individual items
zipped_headlines = list(
zip(aux.getParsedTextList(headlines), aux.getParsedTextList(dates),
aux.getParsedTextList(text)))
# generate a readable dataframe
headline_df = pd.DataFrame(zipped_headlines)
headline_df.rename(columns={
0: 'headline',
1: 'date',
2: 'text'
},
inplace=True)
headline_html = pd.DataFrame.to_html(headline_df)
except:
print(error)
# ------------------------------------------------------------
# Step 3: Scrape Nasa Mars News website for featured image
# ------------------------------------------------------------
try:
url = aux.hidden_urls[1]
webpage = aux.getParsedWebpage(browser, url)
# get title and description
featured_title = soup.find(webpage, 'h1',
class_='media_feature_title').get_text()
featured_description = soup.find(
webpage, 'a', class_='button fancybox').get('data-description')
# get and construct url for largest size of featured image available
featured_url = soup.find(
webpage, 'a', class_='button fancybox').get('data-fancybox-href')
featured_filename = featured_url.split('/')[4].split('_')[0]
featured_url = f'https://www.jpl.nasa.gov/spaceimages/images/largesize/{featured_filename}_hires.jpg'
except:
print(error)
# ------------------------------------------------------------
# Step 4: Scrape Mars Twitter for the most recent weather
# update
# ------------------------------------------------------------
try:
url = aux.hidden_urls[2]
webpage = aux.getParsedWebpage(browser, url)
std_tweet_class = 'TweetTextSize TweetTextSize--normal js-tweet-text tweet-text'
# pull text of most recent tweet about the weather
recent_weather = soup.find_all(webpage, 'p',
class_=std_tweet_class)[0].get_text()
# create split string to pull apart and add to dataframe
recent_weather_split = recent_weather.split(',')
recent_weather_split = [i.split(' ') for i in recent_weather_split][2:]
# create dictionary to turn into a dataframe
weather_dict = {
'mars_date': f'{recent_weather.split("(")[0]}',
'earth_date': f'{recent_weather.split("(")[1].split(")")[0]}',
'cur_weather': f'{recent_weather_split[0][1]}',
'temp_high': f'{recent_weather_split[1][2]}',
'temp_low': f'{recent_weather_split[2][2]}',
'pressure':
f'{recent_weather_split[3][3]} {recent_weather_split[3][4]}',
'daylight': f'{recent_weather_split[4][2]}'
}
weather_df = pd.DataFrame.from_dict(weather_dict, orient='index')
weather_df = weather_df.rename(
columns={0: 'Most Recent Weather on Mars'})
weather_html = pd.DataFrame.to_html(weather_df)
except:
print(error)
# ------------------------------------------------------------
# Step 5: Scrape Space Facts website for data on Mars
# ------------------------------------------------------------
try:
url = aux.hidden_urls[3]
webpage = aux.getParsedWebpage(browser, url)
# create dict to hold facts
fact_dict = {}
# get all rows in the facts table and parse into dict
facts_all = soup.find(
webpage, 'table',
class_='tablepress tablepress-id-mars').find_all('tr')
for fact in facts_all:
fact_dict[soup.find(fact, 'strong').get_text()] = (soup.find(
fact, class_='column-2').get_text())
# convert to Dataframe and to HTML table
fact_df = pd.DataFrame.from_dict(fact_dict, orient='index')
fact_df.rename(columns={0: 'Facts about Mars'}, inplace=True)
fact_html = pd.DataFrame.to_html(fact_df)
except:
print(error)
# ------------------------------------------------------------
# Step 6: Scrape images and titles from Astrogeology site
# ------------------------------------------------------------
try:
url = aux.hidden_urls[4]
webpage = aux.getParsedWebpage(browser, url)
# store the base link for the page
base_url = 'https://astrogeology.usgs.gov/'
# get all unique links to the photo pages first
page_links_list = []
page_links = soup.find_all(webpage,
'a',
class_='itemLink product-item')
[page_links_list.append(page.get('href')) for page in page_links]
page_links_list = list(set(page_links_list))
image_list = []
# iterate through links and pull URL for full size images
for link in page_links_list:
url = f'https://astrogeology.usgs.gov{link}'
webpage = aux.getParsedWebpage(browser, url)
# get image title
title = soup.find(webpage, 'h2', class_='title').get_text()
# get full size image link
downloads_section = soup.find(webpage, 'div', class_='downloads')
image_link = soup.find(downloads_section, 'a').get('href')
# add title and full-size image url to dict
image_list.append({'title': title, 'image_url': image_link})
except:
print(error)
# ------------------------------------------------------------
# Step 7: Stick everything into a dictionary and return it
# ------------------------------------------------------------
scrape_results_dict = {
'headlines': zipped_headlines,
'featured_img_url': featured_url,
'weather': weather_html,
'facts': fact_html,
'image_urls': image_list
}
return scrape_results_dict
