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How to read all files in a directory

P: n/a
Dear All,

My python application is small. It reads data from a file.
My code is:
fileName = '900128.DAT'
dataFile = open(fileName, 'r').readlines()
I have to run 100 input files .DAT. Each time I run application, I have
to change code fileName to a new one. For example, fileName
= 'NewFile.DAT'.
I do not know how I can process all file with extension .DAT in a
specific directory once only.

Any suggestion will be appreciated,

Thank you.

Nov 3 '05 #1
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3 Replies


P: n/a
"hungbichvo" <hu********@yahoo.com> writes:
Dear All,

My python application is small. It reads data from a file.
My code is:
fileName = '900128.DAT'
dataFile = open(fileName, 'r').readlines()
I have to run 100 input files .DAT. Each time I run application, I have
to change code fileName to a new one. For example, fileName
= 'NewFile.DAT'.
I do not know how I can process all file with extension .DAT in a
specific directory once only.

Any suggestion will be appreciated,

Thank you.


http://www.python.org/doc/2.4.2/lib/module-glob.html

% python
Python 2.4.2 (#2, Sep 30 2005, 21:19:01)
[GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
import glob
print glob.glob('*.rb')

['hello.rb', 'test.rb', 'ping.rb', 'echo.rb']

Sorry for the ruby code in the example :-)

S.

Nov 3 '05 #2

P: n/a
Not tested:

import glob
import os
path=r'C:\datafiles\'
for fileName in glob.glob(os.path.join(path,'*.DAT')):
dataFile=open(fileName, 'r').readlines()
Nov 3 '05 #3

P: n/a
Not tested:

import glob
import os
path=r'C:\datafiles\'
for fileName in glob.glob(os.path.join(path,'*.DAT')):
dataFile=open(fileName, 'r').readlines()
Nov 3 '05 #4

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