The error you are seeing means you do not have access to the code <https://cloud.google.com/appengine/docs/python/tools/uploadinganapp?hl=en#Python_Downloading_source_code> .
For sanity sake I tested this: Created a fresh app Create 2 modules (modulea, moduleb) Uploaded using appcfg.py update app.yaml modulea moduleb Confirmed all pages worked Downloaded using: appcfg.py download_app -A app-id-here . All files for ALL modules are present. What I think is happening with you is you are confusing App Engine modules <https://cloud.google.com/appengine/docs/python/modules/> and company decided modules. Do they have different app ids? On Tuesday, August 4, 2015 at 6:32:00 AM UTC-4, Paul Canning wrote: > > I know you can download your default module code using "appcfg.py > download_app" and even a specific version of the default module. > > Nut is it possible to download the code of a MODULE? > > E.G I have the the default app, Website A. I thne have a module, which is > an entirely different site, Website B. > > The appcfg.py command will only let me download versions of Website A. > > Here is the usage: > > "Usage: appcfg.py [options] download_app -A app_id [ -V version ] > <out-dir>" > > See, no options for module. > > So, how can I download specific module code? > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/55cb7ed9-538d-4324-b389-f70a9790dafe%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.