[google-appengine] Defered function that can take lambdas, closures
Hi all, This might be interesting to anyone who uses deferred.defer in python on appengine. I've just written this code that expands what you can do with defer. You can defer a lambda, and you can defer (functions with) closures. It's implemented using the original defer, but marshals a function's code across the defer boundary (using the marshal library and a wrapper function) and keeps the function's closure information intact. Note that this wont take an arbitrary callable, you need to be passing a function. I'd love any feedback; am I doing anything disastrous? Could anything be done a better way? import marshal, types, sys from google.appengine.ext import deferred # defer any function object to be run in a background task def Defer(aFunction, *args, **kwargs): if not aFunction or not hasattr(aFunction, func_code): raise Exception (First argument required, must be a function) # recursively turn a function's closure info into something marshallable def MarshalClosureValues(aClosure): logging.debug(aClosure) lmarshalledClosureValues = [] if aClosure: lclosureValues = [lcell.cell_contents for lcell in aClosure] logging.debug(lclosureValues: %s % lclosureValues) lmarshalledClosureValues = [ [marshal.dumps(litem.func_code), MarshalClosureValues(litem.func_closure)] if hasattr(litem, func_code) else [marshal.dumps(litem)] for litem in lclosureValues ] return lmarshalledClosureValues # marshall the function's code lmarshalledFunc = marshal.dumps(aFunction.func_code) # marshall the function's closure info lmarshalledClosureValues = MarshalClosureValues(aFunction.func_closure) # also grab the function's module (for restoring appropriate globals) lmoduleName = aFunction.__module__ # call defer on our wrapper function, with all this info; # it will reverse the above and call the origin function deferred.defer(WrapDeferred, lmarshalledFunc, lmarshalledClosureValues, lmoduleName, *args, **kwargs) # Reverse the marshalling process and call reconstituted function def WrapDeferred(aMarshalledFunc, aMarshalledClosureValues, aModuleName, *args, **kwargs): # get appropriate globals. These are being used for functions inside closure info # as well as top level function; is this dangerous? lglobals = sys.modules[aModuleName].__dict__ # Creates a cell for a value by wrapping it in a function and then pulling it out # of the closure info def make_cell(value): return (lambda x: lambda: x)(value).func_closure[0] # Reverse marshalling process on closure info def UnmarshalClosureValues(aMarshalledClosureValues): lclosure = None if aMarshalledClosureValues: lclosureValues = [ marshal.loads(item[0]) if len(item) == 1 else types.FunctionType(marshal.loads(item[0]), lglobals, closure=UnmarshalClosureValues(item[1])) for item in aMarshalledClosureValues if len(item) = 1 and len(item) = 2 ] lclosure = tuple([make_cell(lvalue) for lvalue in lclosureValues]) return lclosure # unmarshal the function code lfunctionCode = marshal.loads(aMarshalledFunc) # unmarshal the closure info lclosure = UnmarshalClosureValues(aMarshalledClosureValues) # create a new function using the unmarshalled code, closure info, and globals lfunction = types.FunctionType(lfunctionCode, lglobals, closure=lclosure) # call the function! lfunction(*args, **kwargs) -- Emlyn http://point7.wordpress.com - My blog https://plus.google.com/u/0/100281903174934656260 - Google+ -- 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. For more options, visit https://groups.google.com/d/optout.
Re: [google-appengine] Help Needed in handling Forms (GAE PHP)
I have done everything. From exporting the files to uploading them on the App Engine. The only thing I can't figure out is how to upload the 8 .php files. I moved them to a different folder but the *upload: *directive didn't work. Can you please give me exact commands to write in my *app.yaml* for putting them in the root? On Friday, October 3, 2014 3:27:39 AM UTC+5:30, Vinny P wrote: On Thu, Oct 2, 2014 at 6:34 AM, Anmol Parashar 4nm...@gmail.com javascript: wrote: I have two forms on my website, one asks for just an email and other a contact form. Both of them accepts input but can't send the input to where they are supposed to. A message is displayed, PHP scripts/files are either not configured properly or are missing. Contact your host. I made my website using Adobe Muse and their forms uses PHP. I have provided all my static html files to Google App Engine (which I'm using as a host) using the Deploy function but whenever I hit deploy, most of the files are read and uploaded except the 8 .php files. The error says, *Mimetype can't be recognized for *.php. Using application octet stream instead.* *How do I upload my .php files?* Are you deploying within Adobe Muse, or deploying using the App Engine SDK outside of Muse? If you're attempting to deploy while inside of Muse, try this: open your project in Muse, then go to File Export HTML and save a copy of your website on your local disk. Then download and install the App Engine PHP SDK ( https://cloud.google.com/appengine/downloads ) and use it to upload your local website copy to App Engine. Here are uploading directions: https://cloud.google.com/appengine/docs/php/gettingstarted/uploading On Thu, Oct 2, 2014 at 6:34 AM, Anmol Parashar 4nm...@gmail.com javascript: wrote: - url: /unsubscribe script: static_website/jl3sxnhv7vv.php I see that your PHP scripts are in your static files directory. You need to move them into their own directory or put them at root. On Thu, Oct 2, 2014 at 6:34 AM, Anmol Parashar 4nm...@gmail.com javascript: wrote: *PS:* The support at Adobe Muse says that PHP is not configured. Contact the server admin. How do I tell Google To enable php? PHP is already configured in App Engine, you don't need to do anything special. - -Vinny P Technology Media Consultant Chicago, IL App Engine Code Samples: http://www.learntogoogleit.com -- 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. For more options, visit https://groups.google.com/d/optout.
Re: [google-appengine] Help Needed in handling Forms (GAE PHP)
On Thu, Oct 2, 2014 at 6:34 AM, Anmol Parashar 4nm...@gmail.com javascript: wrote: - url: /unsubscribe script: static_website/jl3sxnhv7vv.php I see that your PHP scripts are in your static files directory. You need to move them into their own directory or put them at root. I tried to put the php scripts in the root folder and changed my *app.yaml *to application: subscribershop version: 1 runtime: php api_version: 1 threadsafe: yes handlers: - url: /favicon\.ico static_files: favicon.ico upload: favicon\.ico #root - url: / script: static_website/php #serve our home page in case index.html is requested - url: /index.html static_files: static_website/index.html upload: static_website/index.html Now when I tried to *Browse* the app using my localhost, it gives me an error and says, *Warning*: require(G:\Anmol\subscribershop\static_website\php): failed to open stream: Permission denied in *C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\php\setup.php* on line *106* *Fatal error*: require(): Failed opening required 'G:\Anmol\subscribershop\static_website\php' (include_path='G:\Anmol\subscribershop;C:\Program Files (x86)\Google\google_appengine\php\sdk') in *C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\php\setup.php* on line *106* -- 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. For more options, visit https://groups.google.com/d/optout.
