@register.simple_tag<EOL>def progress_bar():
progress_bar_tag = '<STR_LIT>''<STR_LIT>''<STR_LIT>' % (uuid.uuid4())<EOL>upload_progress_url = '<STR_LIT>'% (reverse('<STR_LIT>'))<EOL>return mark_safe(progress_bar_tag + upload_progress_url)<EOL>
progress_bar simple tag

return html5 tag to display the progress bar
and url of ajax function needed to get upload progress
in js/progress_bar.js file.