How to move only *.java files with python?

Question

I have such dir tree:

dir1
 - dir2
 - dir3
 - file1.java
 - file2.java
 - file3.cpp

and I want to move only *.java files to brand new directory called 'java_files' in current directory. How to make it? I read shutil doc but ...

This:

def moveFiles() :
    source = "."
    destination = "java_files"
    if os.path.isfile(source):
        shutil.move(source, destination)

doesn't work at all ...

I don't want to use shells 'mv' instead !

EDIT:

I also tried this:

def moveFiles() :
    source = "."
    destination = "java_files"
    dirList = os.listdir(source)
    for fname in  dirList:
        if fname.endswith(".java") :
            shutil.move(source, destination)

but it gives:

File "test.py", line 95, in <module>
 main()   File "test.py", line 91, in main
 moveFils()   File "test.py", line 82, in move
 shutil.move(source, destination)   File "/usr/lib/python2.7/shutil.py", line 295, in move
 raise Error, "Cannot move a directory '%s' into itself '%s'." % (src, dst) shutil.Error:Cannot move a directory '.' into itself 'java_files'.

But what? Are you unable to write a check if the file name ends with .java? — user2665694
– user2665694, Commented Aug 20, 2012 at 15:20

Savir · Accepted Answer · 2012-08-20 17:52:40Z

2

In this kind of cases, I use glob (which accepts wildcards and regular expressions)

#!/usr/bin/env python

import glob
import shutil
import os

source="."
destination = "/tmp/newDestination/"

if not(os.path.exists(destination)):
    os.makedirs(destination)
elif not(os.path.isdir(destination)):
    raise OSError("Kabooom! The destination %s exists, but is not a directory" % destination)

for javaFile in glob.glob(os.path.join(source, "*.java")):
    if os.path.isfile(javaFile):
        shutil.move(os.path.abspath(javaFile), destination)

edited Aug 20, 2012 at 17:52

answered Aug 20, 2012 at 15:23

Savir

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8 Comments

Katie Over a year ago

your code, : pastie.org/private/olcozc9hkofwwicul0wvg gives me this: pastie.org/private/1layu7aoa5tvdrmlmvzxxw

Katie Over a year ago

when I have as source="." and as destination="./java_files" the code you gave creates only a FILE called java_files ...

Savir Over a year ago

That's because java_files is not a directory, is it? (or at least doesn't exist)... It's behaving as a mv foo /tmp/bar If bar doesn't exist, it'll move the file foo to a file called bar in /tmp/, whereas if bar exists and it's a directory, it'll put the file foo into the bar directory. I'll be right back :D

Katie Over a year ago

thanks for the answer! Is that mean that I have to create java_files dir first? ok, no prob!:)

Katie Over a year ago

my code looks like that now: pastie.org/private/kl2tnv4wyiczy8afmhzka and it's working perfectly, thanks! ;* is that possible, to move to java_files also dir2 and dir3 from my dir tree? How to do it?

|

user2665694 · Accepted Answer · 2012-08-20 15:21:17Z

2

if source.endswith('.java'):
    # do copy or move file

answered Aug 20, 2012 at 15:21

user2665694

3 Comments

profitehlolz Over a year ago

if os.path.isfile(fname) and fname.endswith('.java'):

user2665694 Over a year ago

Nobody can guess what you have done in addition - unless you provide the right code

Katie Over a year ago

@Maulwurfn: heres my whole code: pastie.org/private/olcozc9hkofwwicul0wvg but it gives this: pastie.org/private/1layu7aoa5tvdrmlmvzxxw

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