How to write raw bytes to Google cloud storage with GAE's Python API

Question

I am trying to modify some binary data submitted by user form, and write it to Google Cloud Storage. I tried to follow Google document\'s example, but upon writing I got er

Answer 1

I suppose the problem is that gcs_file.write() method expects data of type "str". Since type of your buf is "unicode" and apparently contains some Unicode chars (maybe in ID3 tags), you get UnicodeDecodeError. So you just need to encode buf to UTF-8:

gcs_file = gcs.open(filename,'w',content_type='audio/mp3')
gcs_file.write(buf.encode('utf-8'))
gcs_file.close()