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in Python 2.7.11 version .

1. Program to obtain numbers from user and store it in a list. 

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a='' list=[] while a!='done': a=raw_input('Enter a number: ') if a!='done': list.append(a) print'List =',list

output:  
Enter a number:  2
Enter a number:  5
Enter a number:  6
Enter a number:  4
Enter a number:  done
List = ['2', '5', '6', '4']

2. Program to open a Text file and print data as output.
    (Hint: if text file is not present at Python folder input the path along with file name)

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var1=raw_input('Enter the file name: ') f=open(var1,'r') print f.read()

output:
Enter the file name:

3.


 

1.Program to get all the text from a site and store it in a .txt file
  
  (Requires  BeautifulSoup )

  

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import urllib import re from bs4 import BeautifulSoup var1=raw_input('Enter url: ') url =var1 html = urllib.urlopen(url).read() soup = BeautifulSoup(html) for script in soup(["script", "style"]): script.extract() text = soup.get_text() lines = (line.strip() for line in text.splitlines()) chunks = (phrase.strip() for line in lines for phrase in line.split(" ")) text = '\n'.join(chunk for chunk in chunks if chunk) text = text.encode('ascii', 'ignore').decode('ascii') print('Text copied to Data.txt file') fhand=open('Data.txt','w') fhand.write(text) fhand.close()

Regex code to find all email address :

1	re.findall(r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)",string_name)

Program to find a particular file type (eg. .mp3,.doc,.mp4 etc) in the PC along with file path

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import fnmatch import os rootdir='/' var1=raw_input('Enter file type to search prefix * : ') pattern=var1 for root,subdirname,filelist in os.walk(rootdir): for filename in fnmatch.filter(filelist,pattern): t=(os.path.join(root,filename)) print(t) print('ALL FILES FOUND')

 

 

converting doc,docx files to txt files