DN613933625

Subject: Re: How to convert GIF file(s) to MIME to be mail? - DN [1]

"Michael P. Reilly" <arcege@shore.net> - 21 Apr 2000 - comp.lang.python

 Paul Martinolich <martinol@nrlssc.navy.mil> wrote:
 : I need to run a shell script that will convert a single or multiple
 : GIF files into something I can mail to another user.

 : How can python do it?

 Yup, pretty easily too.  There are some nice standard modules to help
 you with this.  I do it by hand often enough.

 >>> import MimeWriter, base64
 >>> infile = open('/tmp/world.gif', 'rb')
 >>> outfile = open('/tmp/world.gif.b64', 'w')
 >>> base64.encode(infile, outfile)
 >>> outfile.close()
 >>> infile.close()
 >>> imagesize = os.path.getsize('/tmp/world.gif.b64')
 >>> outmime = open('/tmp/outmail.txt', 'w')
 >>> mw = MimeWriter.MimeWriter(outmime)
 >>> mw.addheader('content-length', imagesize)
 >>> f = mw.startbody('image/gif', [('name', 'world.gif')])
 >>> outfile = open('/tmp/world.gif.b64', 'r')
 >>> f.write(outfile.read())
 >>> outmime.close()
 >>>

 Myself, I always thought the MimeWriter module was overly complicated
 (especially linking it with the mimetools module) and I wrote another
 module for my own uses called mimecntl.

 >>> import mimecntl
 >>> imagefname = '/tmp/world.gif'
 >>> imagedata = open(imagefname, 'rb')
 >>> md = mimecntl.MIME_recoder(image, ctype='image/jpeg')
 >>> encoded = md.encode('base64')
 >>> encoded['content-length'] = len(encoded) # encoded data size
 >>> outmime = open('/tmp/outmail.txt', 'w')
 >>> outmime.write( str(encoded) )
 >>> outmime.close()
 >>>

 Making multipart MIME messages instead is as easy as making a list of
 them:
 >>> second_encoded = mimecntl.MIME_recoder(
 ...   image2, ctype='image/jpeg').encode('base64')
 >>> second_encoded['content-length'] = len(second_encoded)
 >>> msg = mimecntl.MIME_document( [encoded, second_encoded] )
 >>> outmime = open('/tmp/outmime.txt', 'w')
 >>> outmime.write( str(msg) )
 >>> outmime.close()

 You can find the mimecntl module at
 <URL: http://www.shore.net/~arcege/python/mimecntl.py>;.

   -Arcege