Saran A wrote: > Good Morning: > > I understand this error message when I run this code. However, I am > curious to know what the most pythonic way is to convert the list to a > string? I use Python 2.7. > > "Traceback (most recent call last): > before = dict([(f, None) for f in os.listdir(dirlist)]) > TypeError: coercing to Unicode: need string or buffer, list found" > > > The sample code that I am trying to run is: > > path = "/Users/Desktop/Projects/" > dirlist = os.listdir(path)
At this point dirlist is a list of names of the files and directories in "/Users/Desktop/Projects/" Assuming that the Projects folder contains the subfolders or files /Users/Desktop/Projects/foo, /Users/Desktop/Projects/bar and /Users/Desktop/Projects/baz dirlist looks like this: ["foo", "bar", "baz"] It makes no sense to pass this list to os.listdir() as you do below: > before = dict([(f, None) for f in os.listdir(dirlist)]) Forget about the other details in the error message; the actual problem is the "list found" part. Now what would be a possible fix? Sorry, I have no idea what your intention is. Again, you don't need to convert your list to string, you need to decide what directory you want to pass to listdir(). If you have multiple such directories you need to invoke listdir() multiple times with a single directory, typically in a loop. Bonus info: > while True: > time.sleep(10) #time between update check This loop will never terminate. -- https://mail.python.org/mailman/listinfo/python-list
