Regex Search

# Opens all .txt files in a folder and
# searches for any line that matches
# a user-supplied regular expression

import re, os

textFiles = os.listdir('C:\\Users\\Melina\\AppData\\Local\\Programs\\Python\\Python36-32\\Projects\\Automate the Boring Stuff')

print('What do you want to search for?')
userReg = str(input())

if userReg is 'email':
    stringRegex = re.compile(r'[a-z0-9]+((\.|\_)[a-z0-9]+)*@[a-z0-9]+(\.[a-z0-9]+)*(\.[a-z0-9]{2,20})')
    #fileRegex = re.compile(r'\w+\.txt')
elif userReg is 'phone':
    stringRegex = re.compile(r'\d\d\d-\d\d\d-\d\d\d\d')
    #fileRegex = re.compile(r'\w+\.txt')
fileRegex = re.compile(r'\w+\.txt')


for i in range(len(textFiles)):
    if fileRegex.search(textFiles[i]):
        openFile = open('C:\\Users\\Melina\\AppData\\Local\\Programs\\Python\\Python36-32\\Projects\\Automate the Boring Stuff\\' +textFiles[i])
        readFile = openFile.readlines()
        for line in range(len(readFile)):
            r = 0
            if stringRegex.search(readFile[r]):
                print(readFile[r])
                r = r+1