[Tutor] printing files

[Bala subramanian]

Friends,
My files are like below
file1  file2
RemarkRemark
  ---
  ---

I have huge number of such files. I want to concatenate all files in one
huge file. I could do it with a script. But i want to omit the first line
(ie Remark in each file) and concatenate. How to do the same ?

flist=glob.glob(*.txt)
out=open('all','w')

for files in flist:
   handle=open(flist).readlines()
   printout, handle  -- Here i want to write only from second line. I dnt
want to loop over handle here and putting all lines except the first one in
another variable. Is there any
fancy way of doing it.
out.close()
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Re: [Tutor] printing files

[Marc Tompkins]

On Thu, Mar 26, 2009 at 10:42 AM, Bala subramanian 
bala.biophys...@gmail.com wrote:

printout, handle  -- Here i want to write only from second line. I
 dnt want to loop over handle here and putting all lines except the first one
 in
 another variable. Is there any
 fancy way of doing it.



Without changing anything else, you could do it with a slice:

flist=glob.glob(*.txt)
 out=open('all','w')

 for files in flist:
handle=open(flist).readlines()
printout, handle[1:]  # start with second item (indexes start at 0,
 remember) and go to end
 out.close()



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Re: [Tutor] printing files

[Marc Tompkins]

On Thu, Mar 26, 2009 at 10:56 AM, Marc Tompkins marc.tompk...@gmail.comwrote:

 Without changing anything else, you could do it with a slice:


You should probably also close your input files when you're done with them.

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Re: [Tutor] printing files

[Alan Gauld]

Bala subramanian bala.biophys...@gmail.com wrote


for files in flist:
  handle=open(flist).readlines()
  printout, handle  


  printout, handle[1:]

Should do it? You might need to handle line endings though...  


Alan G.

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Re: [Tutor] printing files

[ALAN GAULD]

Use '\n'.join(handle[1:])

It will create a string from your list with newline as separator.

 Alan Gauld
Author of the Learn To Program website
http://www.alan-g.me.uk/






From: Bala subramanian bala.biophys...@gmail.com
To: Alan Gauld alan.ga...@btinternet.com
Sent: Thursday, 26 March, 2009 6:11:59 PM
Subject: Re: [Tutor] printing files

yes you are right,
When i use the following

printout, handle[1:]

In the out file, it saves the lines as a list rather than as a string. How to 
avoid this. 

Bala


On Thu, Mar 26, 2009 at 7:05 PM, Alan Gauld alan.ga...@btinternet.com wrote:


Bala subramanian bala.biophys...@gmail.com wrote


for files in flist:
 handle=open(flist).readlines()
 printout, handle  


 printout, handle[1:]

Should do it? You might need to handle line endings though...  
Alan G.


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Re: [Tutor] printing files

[Kent Johnson]

On Thu, Mar 26, 2009 at 2:58 PM, ALAN GAULD alan.ga...@btinternet.com wrote:
 Use '\n'.join(handle[1:])
 It will create a string from your list with newline as separator.

The lines from readlines() include the newlines already.

 When i use the following

 printout, handle[1:]

 In the out file, it saves the lines as a list rather than as a string. How
 to avoid this.

use
  out.writelines(handle[1:])

Kent
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Re: [Tutor] printing files

[Alan Gauld]

Kent Johnson ken...@tds.net wrote
On Thu, Mar 26, 2009 at 2:58 PM, ALAN GAULD alan.ga...@btinternet.com 
wrote:

Use '\n'.join(handle[1:])
It will create a string from your list with newline as separator.


The lines from readlines() include the newlines already.


Ah, OK, I couldn't remember if readlines stripped them off or not.


printout, handle[1:]

 In the out file, it saves the lines as a list rather than as a string.



use
 out.writelines(handle[1:])


Or if you really want to use the print style

printout, ''.join(handle[1:])

ie join the lines using an empty string.

Alan G



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