Reducing Memory Footprint When Creating Archive in Django

models.py

from django.core.files.base import ContentFile
from django.db import models

file_storage = FileSystemStorage(location='/archive')


class MyFileModel(models.Model):
    """
    A sample model
    """
    archive = models.FileField(storage=file_storage)
    
    @classmethod
    def upload(cls, file):
        my_file_model = cls()
        my_file_model.archive.save(
            file.name,
            ContentFile(file.read())
        )

zipping.py

import tempfile
import zipfile
from django.core.files import File

temp = tempfile.NamedTemporaryFile() # Django cannot read TempFile
with zipfile.ZipFile(temp, mode='w',   compression=zipfile.ZIP_DEFLATED) as archive:
    # Write something into archive
    # Eg: archive.writestr('{}'.format(filename), file_content)
    pass
    
# Assume upload() is one of the methods in our Model
with transaction.atomic():
    temp.seek(0)        # Move the cursor back to the begining of the file
    file = File(temp)    # Wrap NamedTempFile with DjangoFile
    file.name = 'Some File Name.zip'
    MyFileModel.upload(file)