Re: [Tutor] and chomp
* William Allison [EMAIL PROTECTED] [2006-09-14 12:14]: Hi, I'm new to programming and started with Perl but have been reading a lot of good things about Python. Thought I would switch before I have too much time invested in Perl. Anyway, my question is, is there something in Python similar to the diamond operator and chomp from Perl? I'm trying to read in from a file line by line and get rid of the '\n' at the end of each line. fileinput() is similar to http://docs.python.org/lib/module-fileinput.html rstrip() is similar to chomp http://docs.python.org/lib/string-methods.html#l2h-201 These aren't exact matches, but they are close. -- David Rock [EMAIL PROTECTED] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] and chomp
William Allison wrote:
Hi,
I'm new to programming and started with Perl but have been reading a lot
of good things about Python. Thought I would switch before I have too
much time invested in Perl.
Anyway, my question is, is there something in Python similar to the
diamond operator and chomp from Perl? I'm trying to read in from a file
line by line and get rid of the '\n' at the end of each line.
for line in open('somefile.txt'):
line = line.rstrip('\n')
# do something with line
You could also use line = line.rstrip() which removes all trailing white
space including \n, or line.strip() which removes leading and trailing
white space.
Kent
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Re: [Tutor] and chomp
On Thu, Sep 14, 2006 at 12:14:27PM -0400, William Allison wrote:
Hi,
I'm new to programming and started with Perl but have been reading a lot
of good things about Python. Thought I would switch before I have too
much time invested in Perl.
Anyway, my question is, is there something in Python similar to the
diamond operator and chomp from Perl? I'm trying to read in from a file
line by line and get rid of the '\n' at the end of each line.
Thanks,
Will
Consider:
infile = open('infilename.txt', 'r')
for line in infile:
line = line.rstrip('\n')
o
o
o
infile.close()
A few notes:
- See http://docs.python.org/lib/built-in-funcs.html for more on
built-in functions and open() in particular.
- See http://docs.python.org/lib/string-methods.html for more on
string operations and rstrip() in particular.
- rstrip() with no arguments strips all whitespace on the right.
- A file object (returned by the open() function) is an iterator; it
obeys the iterator protocol. That's why you can use it in the
for statement above.
Dave
--
Dave Kuhlman
http://www.rexx.com/~dkuhlman
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