CODEWITHSUNDEEP
pythonpython-2.7
Codejoy
Codejoy

Reputation: 3826

os.listdir and os.path.isdir confusion, isdir is acting random?

I have this simple process below for listing the contents of a folder:

def some_process(self):


    dir3 = os.listdir('/Users/somepath/programming/somepathanother/Data_samples')
    for d in dir3:
        if os.path.isdir(d):
            print "DIR: " + d
        elif os.path.isfile(d):
            print "FILE: " + d


    print "PATH THREE:"
    print str(dir3)

    sys.exit(0)

The actual contents of the Data_samples folder is: dir1 dir2 dir3 dir4 file.zip anotherfile.zip dir5

The output of the process does not work as expected. For a file it just prints:

FILE .DS_Store and nothing else (should print out file.zip and anotherfile.zip)

I also realize that if I copy the resourcetest.py file and it's corresponding ini file into this folder and run it then it does see it 

FILE: .DS_Store
FILE: resourcetest.ini
FILE: resourcetest.py

The full output of print str(dir3)

PATH THREE: 
['.DS_Store', 'dir1', 'dir2', 'dir3', 'dir4', 'resourcetest.ini','resourcetest.py', 'test.file', 'test.zip', 'dir5']

Then should also print out dir1 dir2 dir3 dir4 as DIR: " , yet none of this happens and I have no idea why, though in an odd twist if I execute this code from the folder that is listed, it does show everything correctly.

Is this an anomaly of running python 2.7 from the mac os x terminal, or am I missing something else here. Is my thinking on the usage of listdir and isdir wrong?

Upvotes: 0

Views: 1003

Answers (1)

Hai Vu
Hai Vu

Reputation: 40783

listdir gives only the names, not the full path. You will need to create the full path:

for d in dir3:
    path = os.path.join('/Users/somepath/programming/somepathanother/Data_samples', d)
    if os.path.isdir(path):
        ...

Upvotes: 6

Related Questions