This is python 2.4.3 on WinXP under PythonWin.
I have a config file with many blank lines and many other lines that I
don't need.
read the file in, splitlines to make a list, then run a loop that
looks like this:
config_file = open("lines.txt", "rb")
returned_lines = config_file.read().splitlines()
i = len(returned_lines)
for i in range(i):
if returned_lines[i].find("Value") == -1:
if returned_lines[i].find("Name") == -1:
print "read in this useless line ..."
print returned_lines[i]
print "Removing line ..."
returned_lines[i] = ""
This blanks out all the lines I don't want. I did originally try 'del
returned_lines[i]' but I got list index out of range, so I made a loop
to delete the empty elements.
for i in range(i):
if returned_lines[i] == "":
del returned_lines[i]
But this gives me "IndexError: list out of range
After much experimentation and dumping of the list, I have figured out
that it doesn't like removing multiple empty elements in a row. In
other words, if there are 4 empty lines, it will remove one of them,
and seems to behave as though that was one element instead of 3. if I
make i = i - *number of groups of empty elements* it works without an
error, but leaves many empty elements behind.
Obviously I can iterate over it time and again, but that isn't how the
world should work.
Is this something obvious that I am doing wrong, or something more
complicated?
Any help will be gratefully appreciated!
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