Question

I was using pycurl to transfer files over ftp in python. I could create the missing directories automatically on my remote server using:

c.setopt(pycurl.FTP_CREATE_MISSING_DIRS, 1)

for some reasons, I have to switch to ftplib. But I don’t know how to to the same here. Is there any option to add to storbinary function to do that? or I have to create the directories manually?

Answer 1

FTP_CREATE_MISSING_DIRS is a curl operation (added here). I’d hazard a guess that you have to do it manually with ftplib, but I’d love to be proven wrong, anyone?

I’d do something like the following: (untested, and need to catch ftplib.all_errors)

ftp = ... # Create connection

# Change directories - create if it doesn't exist
def chdir(dir): 
    if directory_exists(dir) is False: # (or negate, whatever you prefer for readability)
        ftp.mkd(dir)
    ftp.cwd(dir)

# Check if directory exists (in current location)
def directory_exists(dir):
    filelist = []
    ftp.retrlines('LIST',filelist.append)
    for f in filelist:
        if f.split()[-1] == dir and f.upper().startswith('D'):
            return True
    return False

Or you could do directory_exists like this: (a bit harder to read?)

# Check if directory exists (in current location)
def directory_exists(dir):
    filelist = []
    ftp.retrlines('LIST',filelist.append)
    return any(f.split()[-1] == dir and f.upper().startswith('D') for f in filelist)