Note: at this point GAE_SDK is not listed under External Libraries.Įvent Log, a Load error: undefined path variables message about undefined variable GAE_PATH is displayed. Replace all instances of with $GAE_PATH$.ĭefine the value of path variable $GAE_PATH$: Replace with the path variable $GAE_PATH$: For the same result, there are two ways to replace with the P圜harm path variable GAE_PATH: through the P圜harm UI, or by editing the P圜harm files directly. To be able to store the settings in files that can be shared across projects and users, it is useful to define a path variable for the library location. The configurations described above have to be repeated for each project. The following steps are optional: replacing with a per user path variable is mainly useful for large, shared projects. The P圜harm configuration for python GAE code navigation and completion is done. In the python code, you can open class definitions (right-click on class) and code completion works. GAE_SDK is listed under External Libraries in the Project viewer ( View > Tool Windows > Project). If you need more GAE libraries, add them to the list (in a similar way to webapp2, django and jinja in our example). If you'd like to use a per user path variable instead, see the next section. Update the paths C:/Program Files (x86)/Google/google_appengine to your. In GAE_SDK.xml, copy and paste the following xml code: In \.idea\libraries, create an xml file named To enable P圜harm's code navigation and completion, we need to add the GAE SDK to P圜harm's list of External Libraries.Īdd External Libraries directory and file: The basic P圜harm configuration for python GAE debugging is done. Run in debug mode: Run > Debug 'GAE_config' RunConfigurations\GAE_config.xml, which can be shared with other users and put in version control.Įxpand the tree to Build, Execution, Deployment > Python DebuggerĮnsure the option Attach to subprocess automatically while debugging is ticked.Īdd a breakpoint in the python file (e.g. These are the minimum arguments needed for the debugging to work.Įnsure you include the final argument, ". automatic_restart=no -max_module_instances="default:1". On Windows the default installation is C:\Program Files (x86)\Google\google_appengine\dev_appserver.py. Here you need to enter the location of the dev_appserver.py file installed in your Google App Engine SDK. In the Add New Configuration list, select Python.Ĭhoose a name, which we’ll refer to as GAE_config Select your base project directory (the one which contains an app.yaml file).įor our examples we’ll be using the folder C:\engineapp, which we’ll refer to as. If you don't have a GAE app to work with, see the prerequisites section for instructions on how to set up an example GAE application. You’ll need a pre-existing GAE application for this to work. This section describes the minimum Run/Debug configuration necessary to debug a python for GAE application. Style conventions used throughout the post. Tutorial prerequisites (software to install and basic project setup) and Overview of the four P圜harm configuration files we'll modify or create ĭefinitions for the variables used in the tutorial If you want to enjoy the full power of P圜harm and save yourself some time, skip this tutorial and use P圜harm Professional Edition instead.īefore starting, note that you'll find additional information at the bottom of the post: Note: Doug figured out the configuration settings described in this tutorial through trial and error, our experience with python GAE debugging with Visual Studio, and by looking at the open-source P圜harm CE code. The specific paths examples are from Windows, but they should also be applicable to other Operating Systems. Throughout the tutorial we'll attempt to use the P圜harm UI as often as possible, but we'll also explain how to do the whole configuration by editing the P圜harm files directly. The final section explains how to use a P圜harm path variable to make the code more portable, which should help for distributed projects. Further, we explain how to enable smart code navigation and completion for GAE libraries. This post details how to configure the free P圜harm Community Edition to enable debugging of python code destined to run on Google App Engine. Although lacking in some features, it is still useful if all you're after is a python debugger and IDE for GAE. We've found that P圜harm CE can, with some effort, be made to work with Google App Engine (GAE). Python Google App Engine debugging with P圜harm CEĪlongside P圜harm Professional Edition, JetBrains generously offers a free version of their IDE: P圜harm Community Edition.
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