I'm writing an Azure function in Python 3.9 that needs to accept a base64 string created from a known .docx file which will serve as a template. My code will decode the base64, pass it to a BytesIO instance, and pass that to docx.Document(). However, I'm receiving an exception BadZipFile: File is not a zip file.
Below is a slimmed down version of my code. It fails on document = Document(bytesIODoc). I'm beginning to think it's an encoding/decoding issue, but I don't know nearly enough about it to get to the solution.
from docx import Document
from io import BytesIO
import base64
var = {
'template': 'Some_base64_from_docx_file',
'data': {'some': 'data'}
}
run_stuff = ParseBody(body=var)
output = run_stuff.run()
class ParseBody():
def __init__(self, body):
self.template = str(body['template'])
self.contents = body['data']
def _decode_template(self):
b64Doc = base64.b64decode(self.template)
bytesIODoc = BytesIO(b64Doc)
document = Document(bytesIODoc)
def run(self):
self.document = self._decode_template()
I've also tried the following change to _decode_template and am getting the same exception. This is running base64.decodebytes() on the b64Doc object and passing that to BytesIO instead of directly passing b64Doc.
def _decode_template(self):
b64Doc = base64.b64decode(self.template)
bytesDoc = base64.decodebytes(b64Doc)
bytesIODoc = BytesIO(bytesDoc)
I have successfully tried the following on the same exact .docx file to be sure that this is possible. I can open the document in Python, base64 encode it, decode into bytes, pass that to a BytesIO instance, and pass that to docx.Document successfully.
file = r'WordTemplate.docx'
doc = open(file, 'rb').read()
b64Doc = base64.b64encode(doc)
bytesDoc = base64.decodebytes(b64Doc)
bytesIODoc= BytesIO(bytesDoc)
newDoc = Document(bytesIODoc)
I've tried countless other solutions to no avail that have lead me further away from a resolution. This is the closest I've gotten. Any help is greatly appreciated!
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