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API raises exception when uploading big files in session

Hi, I have been trying for a few days to upload a big file into my Dropbox account using the python API,

i have tried using the following code:

f = open(file_path)
file_size = os.path.getsize(file_path)

CHUNK_SIZE = 4 * 1024 * 1024

if file_size <= CHUNK_SIZE:

    print dbx.files_upload(f.read(), dest_path)

else:

    upload_session_start_result = dbx.files_upload_session_start(f.read(CHUNK_SIZE))
    cursor = dropbox.files.UploadSessionCursor(session_id=upload_session_start_result.session_id,
                                               offset=f.tell())
    commit = dropbox.files.CommitInfo(path=dest_path)

    while f.tell() < file_size:
        if ((file_size - f.tell()) <= CHUNK_SIZE):
            print dbx.files_upload_session_finish(f.read(CHUNK_SIZE),
                                            cursor,
                                            commit)
        else:
            dbx.files_upload_session_append(f.read(CHUNK_SIZE),
                                            cursor.session_id,
                                            cursor.offset)
            cursor.offset = f.tell()

f.close()

but everytime i get the same exception when reaching

dbx.files_upload_session_finish(f.read(CHUNK_SIZE),
                                            cursor,
                                            commit)

the exception is:

dropbox.exceptions.ApiError: ApiError('fa8b9a1a5c61684f4e6f58f2c695c248', UploadSessionFinishError('path', WriteError('malformed_path', None)))

I have been stuck on this for days, anyone has any suggestions?

(I have tried already switching the following function to the v2 version, but it didn't helpped

files_upload_session_append

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Comments

Steve M.

The error is "malformed_path." What's the value of dest_path?

testuser1

just '/'(home folder), when i try to upload a smaller file to the same destination it works.

Steve M.

The root should be "", not "/".

testuser1

whenever i try to use "" as the root dir I get:

dropbox.stone_validators.ValidationError: '' did not match pattern '(/(.|[\r\n])*)|(ns:[0-9]+(/.*)?)'

Greg-DB

Note that when uploading a file, the path you supply should be the entire desired path for the uploaded file, including the file name. I.e., you shouldn't just specify the root path.

For example, to upload a file named "myfile.txt" to the root, your dest_path should be "/myfile.txt". Or, to upload it into a "Documents" folder, the path would be "/Documents/myfile.txt".

(Steve is correct that when identify the root itself though, you would just use "", but that doesn't apply here since this particular call needs the full path for the file.)