I have designed a webpage that allows the user to upload a zip file. What I want to do is store this zip file directly into my sqlite database as a large binary object, then be able to read this binary object as a zipfile using the zipfile package. Unfortunately this doesn't work because attempting to pass the file as a binary string in io.BytesIO into zipfile.ZipFile gives the error detailed in the title.
For my MWE, I exclude the database to better demonstrate my issue.
views = Blueprint('views', __name__)
@views.route("/upload", methods=["GET", "SET"])
def upload():
# Assume that file in request is a zip file (checked already)
f = request.files['file']
zip_content = f.read()
# Store in database
# ...
# at some point retrieve the file from database
archive = zipfile.ZipFile(io.BytesIO(zip_content))
return ""
I have searched for days on-end how to fix this issue without success. I have even printed out zip_content and the contents of io.BytesIO(zip_content) after applying .read() and they are exactly the same string.
What am I doing wrong?
Solved. Using f.read() only gets the name of the zip file. I needed to use f.getvalue() instead to get the full file contents.