###### tags: python
# Regular Expressions
import re
pattern = re.compile('this')
string = 'search inside of this text please!'
re.search('this', string)
a = pattern.search(string)
b = pattern.findall(string)
c = pattern.fullmatch(string) - totally match the string or return none
d= pattern.match(string)
print(a.span())
print(a.start())
print(a.end())
print(a.group())
pattern = re.compile('')
## To verify correct email address
`r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)`