naveen/pythonre_emailid

naveen@ol4:>python
Python 2.7.5 (default, Sep 14 2016, 08:35:31)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>>
>>>
>>> line="my email id is naveen.polamreddi@gmail.com"
>>> line1="my email id is sarath.storage@gmail.com"
>>> line2="my email id is saradhi@gmail.com"
>>> line3="santosh.akula@gmail.com is the email of santosh"
>>> patter=r".+?\..+?\@.*"
>>> pattern=r".+?\..+?\@.*"
>>> import re
>>> data=re.findall(pattern,line,re.I)
>>> data
['my email id is naveen.polamreddi@gmail.com']
>>> line="my email id is naveen.polamreddi@gmail.com"
>>> pattern=r"(\w+\.\w+\@\w+\.\w+)"
>>> data=re.findall(pattern,line,re.I)
>>> data
['naveen.polamreddi@gmail.com']
>>> data3=re.findall(pattern,line3,re.I)
>>> data3
['santosh.akula@gmail.com']
>>> data1=re.findall(pattern,line1,re.I)
>>> data1
['sarath.storage@gmail.com']
>>> data2=re.findall(pattern,line2,re.I)
>>> data2
[]
>>> line2
'my email id is saradhi@gmail.com'
>>> pattern
'(\\w+\\.\\w+\\@\\w+\\.\\w+)'
>>> line2
'my email id is saradhi@gmail.com'
>>> pattern2=r"(\w+\@.+)"
>>> data2=re.findall(pattern2,line2,re.I)
>>> data22
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'data22' is not defined
>>> data2
['saradhi@gmail.com']
>>>