Thanks David /Anthony for your help. I figured out the issue myself. I dont need any ^, $ etc to the regex pattern and the plain string (for exp my-dog) works fine. I am looking at creating a generic method so that instead of passing my-dog i can pass my-cat or blah blah. I am thinking of creating a list of probable combinations to search from the list. Anybody have better ideas?
On Thu, Sep 19, 2019 at 3:46 PM David <bouncingc...@gmail.com> wrote: > On Thu, 19 Sep 2019 at 19:34, Pradeep Patra <smilesonisa...@gmail.com> > wrote: > > > Thanks David for your quick help. Appreciate it. When I tried on python > 2.7.3 the same thing you did below I got the error after matches.group(0) > as follows: > > > > AttributeError: NoneType object has no attribute 'group'. > > > > I tried to check 'None' for no match for re.search as the documentation > says but it's not working. > > > > Unfortunately I cannot update the python version now to 2.7.13 as other > programs are using this version and need to test all and it requires more > testing. Any idea how I can fix this ? I am ok to use any other re > method(not only tied to re.search) as long as it works. > > Hi again Pradeep, > > We are now on email number seven, so I am > going to try to give you some good advice ... > > When you ask on a forum like this for help, it is very > important to show people exactly what you did. > Everything that you did. In the shortest possible > way that demonstrates whatever issue you are > facing. > > It is best to give us a recipe that we can follow > exactly that shows every step that you do when > you have the problem that you need help with. > > And the best way to do that is for you to learn > how to cut and paste between where you run > your problem code, and where you send your > email message to us. > > Please observe the way that I communicated with > you last time. I sent you an exact cut and paste > from my terminal, to help you by allowing you to > duplicate exactly every step that I made. > > You should communicate with us in the same > way. Because when you write something like > your most recent message > > > I got the error after matches.group(0) as follows: > > AttributeError: NoneType object has no attribute 'group'. > > this tells us nothing useful!! Because we cannot > see everything you did leading up to that, so we > cannot reproduce your problem. > > For us to help you, you need to show all the steps, > the same way I did. > > Now, to help you, I found the same old version of > Python 2 that you have, to prove to you that it works > on your version. > > So you talking about updating Python is not going > to help. Instead, you need to work out what you > are doing that is causing your problem. > > Again, I cut and paste my whole session to show > you, see below. Notice that the top lines show that > it is the same version that you have. > > If you cut and paste my commands into > your Python then it should work the same way > for you too. > > If it does not work for you, then SHOW US THE > WHOLE SESSION, EVERY STEP, so that we can > reproduce your problem. Run your python in a terminal, > and copy and paste the output you get into your message. > > $ python > Python 2.7.3 (default, Jun 20 2016, 16:18:47) > [GCC 4.7.2] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > >>> import re > >>> mystr = "where is my-dog" > >>> pattern = re.compile(r'my-dog$') > >>> matches = re.search(pattern, mystr) > >>> matches.group(0) > 'my-dog' > >>> > > I hope you realise that the re module has been used > by thousands of programmers, for many years. > So it's extremely unlikely that it "doesn't work" in a way that > gets discovered by someone who hardly knows how to use it. > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
