Upload folders from local system to FTP using Python script

Question

I have to automatically upload folders to an FTP using a Python script. I am able to upload a single file, but not folders with subfolders and files in them. I did a lot of

Answer 1

EDIT 20/12/2017:

I have written a project in GitHub for this purpose. Click for details!

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There are good answers above but i also want to add a good one using ftputil package. If you need to upload files from local directory to ftp directory, you can use this recursive function:

def upload_dir(localDir, ftpDir):
list = os.listdir(localDir)
for fname in list:
    if os.path.isdir(localDir + fname):             
        if(ftp_host.path.exists(ftpDir + fname) != True):                   
            ftp_host.mkdir(ftpDir + fname)
            print(ftpDir + fname + " is created.")
        upload_dir(localDir + fname + "/", ftpDir + fname + "/")
    else:               
        if(ftp_host.upload_if_newer(localDir + fname, ftpDir + fname)):
            print(ftpDir + fname + " is uploaded.")
        else:
            print(localDir + fname + " has already been uploaded.")

If you decide to use this function, you have to connect ftp using ftputil package. For this, you can use this snippet:

with ftputil.FTPHost("ftp_host", "ftp_username", "ftp_password") as ftp_host:

So, we're almost done. The last thing is usage of the function for beginners like me:

local_dir = "D:/Projects/.../"
ftp_dir = "/.../../"

upload_dir(local_dir, ftp_dir)

The most important thing is "/" character at the end of paths. You need to put it at the end. Finally, i want to share entire code:

with ftputil.FTPHost("ftp_host", "ftp_username", "ftp_password") as ftp_host:
    def upload_dir(localDir, ftpDir):
    list = os.listdir(localDir)
    for fname in list:
        if os.path.isdir(localDir + fname):             
            if(ftp_host.path.exists(ftpDir + fname) != True):                   
                ftp_host.mkdir(ftpDir + fname)
                print(ftpDir + fname + " is created.")
            upload_dir(localDir + fname + "/", ftpDir + fname + "/")
        else:               
            if(ftp_host.upload_if_newer(localDir + fname, ftpDir + fname)):
                print(ftpDir + fname + " is uploaded.")
            else:
                print(localDir + fname + " has already been uploaded.")
    local_dir = "D:/Projects/.../"
    ftp_dir = "/.../../"

    upload_dir(local_dir, ftp_dir)