code-boxx/0-PY-WEB-SCRAPER.MD

## 0-PY-WEB-SCRAPER.MD

      
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              0-PY-WEB-SCRAPER.MD
            
          
    PYTHON WEB SCRAPER EXAMPLE

https://code-boxx.com/python-web-scraper/
NOTES


Run unpack.bat (Windows) unpack.sh (Linux/Mac). This will automatically:

Create 2 folders - static and templates.
Move S1_dummy.html into templates.
Save the sample image below as static/box.png
Create a virtual environment - virtualenv venv
Activate the virtual environment - venv\scripts\activate (Windows) venv/bin/activate (Mac/Linux)
Install the required modules pip install flask requests beautifulsoup4
Start the server python S1_http.py


Access http://localhost in your web browser, make sure the dummy HTTP server is running.
Open another command line terminal.

Activate the virtual environment - venv\scripts\activate (Windows) venv/bin/activate (Mac/Linux)
Run python S2_scrape.py, it should extract information from the dummy HTML page.


IMAGES


LICENSE

Copyright by Code Boxx
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.****

  
## S1_dummy.html
<!DOCTYPE html>
<html>
  <head>
    <title>Dummy Product Page</title>
    <meta charset="utf-8">
    <style>
    * {
      font-family: Arial, Helvetica, sans-serif;
      box-sizing: border-box;
    }
    #product {
      width: 300px;
      padding: 15px;
      border: 1px solid #eee;
      background: #f5f5f5;
    }
    #pImg {
      display: block;
      width: 100%;
      margin-bottom: 15px;
    }
    #pName {
      font-size: 18px;
      font-weight: 700;
    }
    #pPrice {
      font-weight: 700;
      color: #f34242;
    }
    #pDesc {
      font-size: 14px;
      color: #5c5c5c;
    }
    #pAdd {
      width: 100%;
      margin-top: 10px;
      border: 0;
      padding: 10px;
      color: #fff;
      background: #b72b2b;
      cursor: pointer;
    }
    </style>
  </head>
  <body>
    <div id="product">
      <img src="static/sandwich.png" id="pImg">
      <div id="pName">Sandwich</div>
      <div id="pPrice">$12.34</div>
      <div id="pDesc">Just a regular SAND wich.</div>
      <input type="button" value="Add To Cart" id="pAdd">
    </div>
  </body>
</html>

## S1_http.py
# (A) LOAD MODULES
from flask import Flask, render_template

# (B) FLASK
app = Flask(__name__)
@app.route("/")
def index():
  return render_template("S1_dummy.html")

# (C) RUN!
if __name__ == "__main__":
  app.run("localhost", 80)

## S2_scrape.py
# (A) LOAD REQUIRED MODULES
import requests
from bs4 import BeautifulSoup

# (B) GET HTML
html = requests.get("http://localhost").text
# print(html)

# (C) HTML PARSER
soup = BeautifulSoup(html, "html.parser")
name = soup.find("div", {"id": "pName"}).text
desc = soup.find("div", {"id": "pDesc"}).text
price = soup.find("div", {"id": "pPrice"}).text
image = soup.find("img", {"id": "pImg"})["src"]
print(name)
print(desc)
print(price)
print(image)

## unpack.bat
md templates
md static
move S1_dummy.html templates
curl https://user-images.githubusercontent.com/11156244/281251426-1737b31d-d813-4913-aa99-0d6cf490e757.png --ssl-no-revoke --output static/sandwich.png
virtualenv venv
call venv\Scripts\activate
pip install flask requests beautifulsoup4
python S1_http.py

## unpack.sh
mkdir -m 777 templates
mkdir -m 777 static
mv ./S1_dummy.html ./templates
curl https://user-images.githubusercontent.com/11156244/281251426-1737b31d-d813-4913-aa99-0d6cf490e757.png --ssl-no-revoke --output ./static/sandwich.png
virtualenv venv
source "venv/bin/activate"
pip install flask requests beautifulsoup4
python S1_http.py
	<!DOCTYPE html>
	<html>
	<head>
	<title>Dummy Product Page</title>
	<meta charset="utf-8">
	<style>
	* {
	font-family: Arial, Helvetica, sans-serif;
	box-sizing: border-box;
	}
	#product {
	width: 300px;
	padding: 15px;
	border: 1px solid #eee;
	background: #f5f5f5;
	}
	#pImg {
	display: block;
	width: 100%;
	margin-bottom: 15px;
	}
	#pName {
	font-size: 18px;
	font-weight: 700;
	}
	#pPrice {
	font-weight: 700;
	color: #f34242;
	}
	#pDesc {
	font-size: 14px;
	color: #5c5c5c;
	}
	#pAdd {
	width: 100%;
	margin-top: 10px;
	border: 0;
	padding: 10px;
	color: #fff;
	background: #b72b2b;
	cursor: pointer;
	}
	</style>
	</head>
	<body>
	<div id="product">
	<img src="static/sandwich.png" id="pImg">
	<div id="pName">Sandwich</div>
	<div id="pPrice">$12.34</div>
	<div id="pDesc">Just a regular SAND wich.</div>
	<input type="button" value="Add To Cart" id="pAdd">
	</div>
	</body>
	</html>
	# (A) LOAD MODULES
	from flask import Flask, render_template

	# (B) FLASK
	app = Flask(__name__)
	@app.route("/")
	def index():
	return render_template("S1_dummy.html")

	# (C) RUN!
	if __name__ == "__main__":
	app.run("localhost", 80)
	# (A) LOAD REQUIRED MODULES
	import requests
	from bs4 import BeautifulSoup

	# (B) GET HTML
	html = requests.get("http://localhost").text
	# print(html)

	# (C) HTML PARSER
	soup = BeautifulSoup(html, "html.parser")
	name = soup.find("div", {"id": "pName"}).text
	desc = soup.find("div", {"id": "pDesc"}).text
	price = soup.find("div", {"id": "pPrice"}).text
	image = soup.find("img", {"id": "pImg"})["src"]
	print(name)
	print(desc)
	print(price)
	print(image)
	md templates
	md static
	move S1_dummy.html templates
	curl https://user-images.githubusercontent.com/11156244/281251426-1737b31d-d813-4913-aa99-0d6cf490e757.png --ssl-no-revoke --output static/sandwich.png
	virtualenv venv
	call venv\Scripts\activate
	pip install flask requests beautifulsoup4
	python S1_http.py
	mkdir -m 777 templates
	mkdir -m 777 static
	mv ./S1_dummy.html ./templates
	curl https://user-images.githubusercontent.com/11156244/281251426-1737b31d-d813-4913-aa99-0d6cf490e757.png --ssl-no-revoke --output ./static/sandwich.png
	virtualenv venv
	source "venv/bin/activate"
	pip install flask requests beautifulsoup4
	python S1_http.py