Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 15, 8:55 pm, Jeff Schwab [EMAIL PROTECTED] wrote:
W. Watson wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I
need up to four digits added to each line with a space between the
number field and the text. Perhaps someone has already done this or
there's a source on the web for it. I'm not yet into files with Python.
A sudden need has burst upon me. I'm using Win XP.
i = 0
for line in sys.stdin:
i += 1
print i, line,
Or if you want consistent alignment:
i = 0
for line in sys.stdin:
i += 1
print %4s % i, line,
I like your version best (it's very clean and easy to understand), but
here's a few more versions...
from itertools import count
for i, line in zip(count(1), open('filename.txt')):
print i, line,
or with consistent alignment:
for x in zip(count(1), open('filename.txt')):
print %4d %s % x,
the latter version gives rise to a one-liner
open('output.txt','w').writelines('%4d %s' % x for x in
zip(count(1), open('perms.py')))
but as I said, I like the simple for loop the best ;-)
-- bjorn
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Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Thu, 14 Feb 2008, W. Watson wrote: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. -- Wayne Watson (Nevada City, CA) Web Page: speckledwithStars.net Hi Wayne, sorry for that: Change OS, and type cat -n program.py numbered.py Just joking, Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 6:54 am, W. Watson [EMAIL PROTECTED] wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I need
up to four digits added to each line with a space between the number field
and the text. Perhaps someone has already done this or there's a source on
the web for it. I'm not yet into files with Python. A sudden need has burst
upon me. I'm using Win XP.
Not sure if Python program/tool means a tool or a program
in Python, but if awk is okay, that's the tool I would use:
awk '{printf( %4d %s\n, NR % 1, $0 )}'
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Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 5:54 pm, W. Watson [EMAIL PROTECTED] wrote: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. FWIW here is a Zeus editor, Python macro script to do this: import zeus def key_macro(): zeus.screen_update_disable() # get the line is the current document line_total = zeus.get_line_count() # message in status bar zeus.message(Line Count: %d % (line_total)) # write the line number to the start of each line for i in range(1, line_total + 1): zeus.set_line_pos(i, 1) number = %4d % (i) zeus.write(number) zeus.screen_update_enable() zeus.screen_update() key_macro() # run the macro To use the script, just load the text file into Zeus and then run the macro above from within Zeus. Jussi Jumppanen Author: Zeus for Windows IDE http://www.zeusedit.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
W. Watson wrote:
Thanks. I found this to work:
input_file=open('junkin.txt','r')
output_file=open('junkout.txt','w')
for (line_cnt, each_line) in enumerate(input_file):
output_file.write('%4d '%(line_cnt+1)+each_line)
You can improve this slightly by using string formatting more fully:
output_file.write(%4d %s % (line_ct+1, each_line))
output_file.close()
input_file.close()
regards
Steve
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Steve Holden+1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. I'm not sure why you need the line numbers inserted into the file. Alot of editors will display and print line numbers. My Visual Studio IDE displays file line numbers (it's an option) and prints them. I believe there's a free Express Edition that you can download. Also, check out http://www.textpad.com/ . I think you can download an evaluation copy. HTH -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
[EMAIL PROTECTED] wrote: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. I'm not sure why you need the line numbers inserted into the file. Alot of editors will display and print line numbers. Perhaps so, but I had to insert line numbers into the code examples in Python Web Programming, for example, because I annotated the code using the line numbers and I wasn't about to allow the publishers the chance to screw them up. My Visual Studio IDE displays file line numbers (it's an option) and prints them. I believe there's a free Express Edition that you can download. Also, check out http://www.textpad.com/ . I think you can download an evaluation copy. None of which would have answered by use case. Besides which, maybe the OP was just writing a test piece ... regards Steve -- Steve Holden+1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
W. Watson wrote: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. i = 0 for line in sys.stdin: i += 1 print i, line, Or if you want consistent alignment: i = 0 for line in sys.stdin: i += 1 print %4s % i, line, -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
I'll see your IBM 650 and raise you a Univac 418 with a FastRand drum. regards Steve W. Watson wrote: Good grief! You go a long way back. Want to try for an IBM 650 with a drum memory? Gabriel Genellina wrote: En Thu, 14 Feb 2008 04:54:56 -0200, W. Watson [EMAIL PROTECTED] escribió: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. This command should suffice - but you must first find a working CP/M system to use it: CPIP [N] NEW.PY=OLD.PY (Sorry - just a a nostalgic flash!) -- Steve Holden+1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 6:13 pm, Chris [EMAIL PROTECTED] wrote:
On Feb 14, 8:54 am, W. Watson [EMAIL PROTECTED] wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I need
up to four digits added to each line with a space between the number field
and the text. Perhaps someone has already done this or there's a source on
the web for it. I'm not yet into files with Python. A sudden need has burst
upon me. I'm using Win XP.
--
Wayne Watson (Nevada City, CA)
Web Page: speckledwithStars.net
enumerate through the file which will yield you a counter (starting @
zero so just add 1) and use the string function .zfill() to pad it out
for you.
eg.
for (line_cnt, each_line) in enumerate(input_file):
output_file.write(print ('%s '%(line_cnt+1)).zfill(5) + each_line)
(1) What's that print doing in there?
(2) zfill(5)? The OP asked for up to 4 digits, not 5.
(2) As an alternative to str.zfill, consider using formatting:
output_file.write('%04d %s' % (line_cnt+1, each_line))
And what does up to 4 mean? What does the OP want the 1th line
to look like?
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Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 1:29 pm, John Machin [EMAIL PROTECTED] wrote:
On Feb 14, 6:13 pm, Chris [EMAIL PROTECTED] wrote:
On Feb 14, 8:54 am, W. Watson [EMAIL PROTECTED] wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I
need
up to four digits added to each line with a space between the number field
and the text. Perhaps someone has already done this or there's a source on
the web for it. I'm not yet into files with Python. A sudden need has
burst
upon me. I'm using Win XP.
--
Wayne Watson (Nevada City, CA)
Web Page: speckledwithStars.net
enumerate through the file which will yield you a counter (starting @
zero so just add 1) and use the string function .zfill() to pad it out
for you.
eg.
for (line_cnt, each_line) in enumerate(input_file):
output_file.write(print ('%s '%(line_cnt+1)).zfill(5) + each_line)
(1) What's that print doing in there?
(2) zfill(5)? The OP asked for up to 4 digits, not 5.
(2) As an alternative to str.zfill, consider using formatting:
output_file.write('%04d %s' % (line_cnt+1, each_line))
And what does up to 4 mean? What does the OP want the 1th line
to look like?
print was a typo
take a look at the string that is built before the zfill fires, it has
a trailing space so it is correct. ;)
--
http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
Thanks. I found this to work:
input_file=open('junkin.txt','r')
output_file=open('junkout.txt','w')
for (line_cnt, each_line) in enumerate(input_file):
output_file.write('%4d '%(line_cnt+1)+each_line)
output_file.close()
input_file.close()
I removed the print, but ran into trouble with zfill. I thought this might
be more difficult judging by a long ago experience with Java.
Chris wrote:
On Feb 14, 1:29 pm, John Machin [EMAIL PROTECTED] wrote:
On Feb 14, 6:13 pm, Chris [EMAIL PROTECTED] wrote:
On Feb 14, 8:54 am, W. Watson [EMAIL PROTECTED] wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I need
up to four digits added to each line with a space between the number field
and the text. Perhaps someone has already done this or there's a source on
the web for it. I'm not yet into files with Python. A sudden need has burst
upon me. I'm using Win XP.
--
Wayne Watson (Nevada City, CA)
Web Page: speckledwithStars.net
enumerate through the file which will yield you a counter (starting @
zero so just add 1) and use the string function .zfill() to pad it out
for you.
eg.
for (line_cnt, each_line) in enumerate(input_file):
output_file.write(print ('%s '%(line_cnt+1)).zfill(5) + each_line)
(1) What's that print doing in there?
(2) zfill(5)? The OP asked for up to 4 digits, not 5.
(2) As an alternative to str.zfill, consider using formatting:
output_file.write('%04d %s' % (line_cnt+1, each_line))
And what does up to 4 mean? What does the OP want the 1th line
to look like?
print was a typo
take a look at the string that is built before the zfill fires, it has
a trailing space so it is correct. ;)
--
Wayne Watson (Nevada City, CA)
Web Page: speckledwithStars.net
--
http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 8:50 am, W. Watson [EMAIL PROTECTED] wrote: (snip) I thought this might be more difficult judging by a long ago experience with Java. (snip) +1 QOTW -- http://mail.python.org/mailman/listinfo/python-list
[OT] Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
En Thu, 14 Feb 2008 04:54:56 -0200, W. Watson [EMAIL PROTECTED] escribió: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. This command should suffice - but you must first find a working CP/M system to use it: CPIP [N] NEW.PY=OLD.PY (Sorry - just a a nostalgic flash!) -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
Good grief! You go a long way back. Want to try for an IBM 650 with a drum memory? Gabriel Genellina wrote: En Thu, 14 Feb 2008 04:54:56 -0200, W. Watson [EMAIL PROTECTED] escribió: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. This command should suffice - but you must first find a working CP/M system to use it: CPIP [N] NEW.PY=OLD.PY (Sorry - just a a nostalgic flash!) -- Wayne Watson (Nevada City, CA) Web Page: speckledwithStars.net -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
Gabriel Genellina wrote: En Thu, 14 Feb 2008 04:54:56 -0200, W. Watson [EMAIL PROTECTED] escribió: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. This command should suffice - but you must first find a working CP/M system to use it: CPIP [N] NEW.PY=OLD.PY (Sorry - just a a nostalgic flash!) Wow! You remembered this. Good old PIP! Jaap -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
Gabriel Genellina wrote: En Thu, 14 Feb 2008 04:54:56 -0200, W. Watson [EMAIL PROTECTED] escribió: See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. This command should suffice - but you must first find a working CP/M system to use it: CPIP [N] NEW.PY=OLD.PY (Sorry - just a a nostalgic flash!) En Thu, 14 Feb 2008 19:47:16 -0200, Jaap Spies [EMAIL PROTECTED] escribió: Wow! You remembered this. Good old PIP! So powerful... It was one of the first things I learned, perhaps that's why I still remember it. En Thu, 14 Feb 2008 18:53:16 -0200, W. Watson [EMAIL PROTECTED] escribió: Good grief! You go a long way back. Want to try for an IBM 650 with a drum memory? I can't go s long back in time :) but I remember having used a Winchester removable hard drive, maybe 30MB capacity, that made a terrible noise and had to be powered on a few minutes earlier than the main unit because it had to speed up. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
See Subject. It's a simple txt file, each line is a Python stmt, but I need up to four digits added to each line with a space between the number field and the text. Perhaps someone has already done this or there's a source on the web for it. I'm not yet into files with Python. A sudden need has burst upon me. I'm using Win XP. -- Wayne Watson (Nevada City, CA) Web Page: speckledwithStars.net -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python Program/Tool That Will Add Line Numbers to a txt File
On Feb 14, 8:54 am, W. Watson [EMAIL PROTECTED] wrote:
See Subject. It's a simple txt file, each line is a Python stmt, but I need
up to four digits added to each line with a space between the number field
and the text. Perhaps someone has already done this or there's a source on
the web for it. I'm not yet into files with Python. A sudden need has burst
upon me. I'm using Win XP.
--
Wayne Watson (Nevada City, CA)
Web Page: speckledwithStars.net
enumerate through the file which will yield you a counter (starting @
zero so just add 1) and use the string function .zfill() to pad it out
for you.
eg.
for (line_cnt, each_line) in enumerate(input_file):
output_file.write(print ('%s '%(line_cnt+1)).zfill(5) + each_line)
output_file.close()
input_file.close()
--
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