Input is this:
SET1_S_W CHAR(1) NOT NULL, SET2_S_W CHAR(1) NOT NULL, SET3_S_W CHAR(1) NOT NULL, SET4_S_W CHAR(1) NOT NULL, ;
.py says:
import re, string, sys s_ora = re.compile('.*S_W.*') lines = open("y.sql").readlines() for i in range(len(lines)): try: if s_ora.search(lines[i]): del lines[i]
When you delete for example lines[0], the indices of the following lines change. So the former lines[1] is now lines[0] and will not be checked.
The simplest way to do this is with a list comprehension: lines = [ line for line in lines if not s_ora.search(line) ]
Even better, there is no need to make the intermediate list of all lines, you
can say
lines = [ line for line in open("y.sql") if not s_ora.search(line) ]In Python 2.4 you don't have to make a list at all, you can just say
open("z.sql","w").writelines(line for line in open("y.sql") if not
s_ora.search(line));)
Kent
except IndexError: open("z.sql","w").writelines(lines)
but output is:
SET2_S_W CHAR(1) NOT NULL, SET4_S_W CHAR(1) NOT NULL, ;
It should delete every, not every other!
thx,
RasDJ
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