# basic_regex_demo.py

# basic_regex_demo.py

import re
myRegex = '(?:\.(?:end$|test(?:ed|ing|ify))|^start)'

def okay(test):
        print test,'=', re.findall(myRegex,test)
okay('xxxtestxxx') # None
okay('xxx.testxxx') # None
okay('xxxtestedxxx') # None
okay('xxx.testedxxx') # Found
okay('xxx.testingxxx') # Found
okay('xxxxxxstart') # None
okay('startxxxxxx') # Found
okay('xxxxxx.end') # Found
okay('xxxxx.endx') # None
okay('xxxxxxend') # None
print
def okay(test):
    print test,'=', bool(re.search(myRegex,test))
okay('xxx.testedxxx') # True
okay('xxxtestedxxx') # False