Nobody explicitly mentioned that you're trying to make a pattern from an integer and not a string, which, I believe is required. Also, Rich needs to make the % formatting "%d"%x instead of "%s"%x because he showed that x is an integer not a string.
There's my two bits. Jacob Schmidt > Hi Group: > > I have Question: > How can I substitute an object as a pattern in making > a pattern. > > >>> x = 30 > >>> pattern = re.compile(x) > > > > > My situation: > > I have a list of numbers that I have to match in > another list and write them to a new file: > > List 1: range_cors > >>> range_cors[1:5] > ['161:378', '334:3', '334:4', '65:436'] > > List 2: seq > >>> seq[0:2] > ['>probe:HG-U133A_2:1007_s_at:416:177; > Interrogation_Position=3330; Antisense;', > 'CACCCAGCTGGTCCTGTGGATGGGA'] > > > A slow method: > >>> sequences = [] > >>> for elem1 in range_cors: > for index,elem2 in enumerate(seq): > if elem1 in elem2: > sequences.append(elem2) > sequences.append(seq[index+1]) > > This process is very slow and it is taking a lot of > time. I am not happy. > > > > A faster method (probably): > > >>> for i in range(len(range_cors)): > for index,m in enumerate(seq): > pat = re.compile(i) > if re.search(pat,seq[m]): > p.append(seq[m]) > p.append(seq[index+1]) > > > I am getting errors, because I am trying to create an > element as a pattern in re.compile(). > > > Questions: > > 1. Is it possible to do this. If so, how can I do > this. > > Can any one help correcting my piece of code and > suggesting where I went wrong. > > Thank you in advance. > > > -K > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > _______________________________________________ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor