CODEWITHSUNDEEP
pythonpython-3.x
Chris
Chris

Reputation: 11

FTP Upload--ASCII mode--a bytes-like object is required, not 'str'

I'm trying to write a FTP upload program for text files. However I'm getting this error:

builtins.TypeError: a bytes-like object is required, not 'str'.

I am using Python 3.6.

Here is my code:

def _upload_to_ftp(self, ftp_handle, name):

  # upload a single file to ftp directory

  with open(name,'r') as f:
    print("uploading"+name)
    filename = os.path.basename(name)
    ftp_handle.storlines('STOR %s' %filename, f)

I could not figure out why.

Upvotes: 1

Views: 2034

Answers (1)

Serge Ballesta
Serge Ballesta

Reputation: 149075

Unfortunately, what FTP calls text is still bytes for Python 3. Python 3 strings use Unicode characters that need to be encoded to bytes in order to be written to files and FTP deals with files. But here it is even simpler: you have just to open the local file in binary mode to have it deliver bytes instead of strings:

def _upload_to_ftp(self, ftp_handle, name):

  # upload a single file to ftp directory

  with open(name,'rb') as f:      # use binary mode for file
    print("uploading"+name)
    filename = os.path.basename(name)
    ftp_handle.storlines('STOR %s' %filename, f)

Upvotes: 4

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