Google App Engine with Pyenv .... or Python 3 .... May be a real problem

[mikenew]

https://rrees.me/2017/02/12/using-google-app-engine-with-pyenv/

[mikenew]

https://unix.stackexchange.com/questions/122874/what-should-someone-know-about-using-python-scripts-in-the-shell

[mikenew]

GAE on using python libraries and managing dependencies

https://cloud.google.com/appengine/docs/flexible/python/using-python-libraries

[mikenew]

OK .. Created a requirements.txt and an app.yaml file which seems to work

Yaml runtime: python

Get the following error when I try to test it on the GAE dev server:

/Skyze$ dev_appserver.py $PWD
WARNING  2017-10-08 01:45:13,826 application_configuration.py:190] The "python" runtime specified in "/home/skyzetrading/src/skyze-market-data-updater/Skyze/app.yaml" is not supported - the "py
thon27" runtime will be used instead. A description of the differences between the two can be found here:
https://developers.google.com/appengine/docs/python/python25/diff27
INFO     2017-10-08 01:45:13,842 devappserver2.py:105] Skipping SDK update check.
INFO     2017-10-08 01:45:13,880 api_server.py:300] Starting API server at: http://0.0.0.0:39821
INFO     2017-10-08 01:45:13,903 dispatcher.py:251] Starting module "default" running at: http://0.0.0.0:8080
INFO     2017-10-08 01:45:13,904 admin_server.py:116] Starting admin server at: http://0.0.0.0:8000

[mikenew]

Tried python 3 on dev server with yaml: runtime: python3

Get the don't support python 3 error:

Last line of error is supported runtimes are 'custom', 'go', 'java', 'java7', 'java8', 'php55', 'python', 'python-compat', 'python27'

error:

INFO     2017-10-08 01:57:38,751 devappserver2.py:105] Skipping SDK update check.
INFO     2017-10-08 01:57:38,791 api_server.py:300] Starting API server at: http://0.0.0.0:60638
INFO     2017-10-08 01:57:38,791 api_server.py:956] Applying all pending transactions and saving the datastore
INFO     2017-10-08 01:57:38,792 api_server.py:959] Saving search indexes
Traceback (most recent call last):
  File "/google/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 103, in <module>
    _run_file(__file__, globals())
  File "/google/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 97, in _run_file
    execfile(_PATHS.script_file(script_name), globals_)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 346, in <module>
    main()
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 334, in main
    dev_server.start(options)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 163, in start
    options.api_host, apiserver.port, wsgi_request_info_)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 247, in start
    _service = self._create_module(module_configuration, service_port)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 360, in _create_module
    threadsafe_override=threadsafe_override)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 1247, in __init__
    super(AutoScalingModule, self).__init__(**kwargs)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 566, in __init__
    self._module_configuration)
  File "/google/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 223, in _create_instance_factory
    sorted(repr(k) for k in runtime_factories.FACTORIES))))
RuntimeError: Unknown runtime 'python3'; supported runtimes are 'custom', 'go', 'java', 'java7', 'java8', 'php55', 'python', 'python-compat', 'python27'.```

[mikenew]

OK from GAE Python Environment doco see below.

Can run python35 in the flexible env though it may note be available on the free plan??

I have a call in with google

Standard environment

• Lightweight Python 2.7 runtime is optimized to scale nearly instantaneously to handle huge traffic spikes.
• Does not allow native code, filesystem access or arbitrary network connections. Learn more
• Uses proprietary APIs to simplify common tasks like database access, queuing and in-memory caching.
• Most cost-effective for applications that have significant periods where they are not serving traffic.
• The standard environment is optimal for applications with the following characteristics:
• Source code is written in specific versions of the supported programming languages:
• Python 2.7
• Java 7, Java 8
• PHP 5.5
• Go 1.6
• Intended to run for free or at very low cost, where you pay only for what you need and when you need it. For example, your application can scale to 0 instances when there is no traffic.
• Experiences sudden and extreme spikes of traffic which require immediate scaling.

ISSUE HERE as Network access is Only via App Engine services (includes outbound sockets), and only for billing-enabled Python, Go, and PHP applications. (https://cloud.google.com/appengine/docs/the-appengine-environments)

Flexible environment

• Full open source language runtimes.
• Use any framework, library or binary of your choice.
• Code is portable to anywhere that supports Docker containers.
• Most cost-effective for applications that serve traffic continuously.
• Python 2.7, 3.5

The flexible environment is optimal for applications with the following characteristics:

• Source code that is written in a version of any of the supported programming languages:
• Python, Java, Node.js, Go, Ruby, PHP, or .NET
• Runs in a Docker container that includes a custom runtime or source code written in other programming languages.
• Depends on other software, including operating system packages such as imagemagick, ffmpeg, libgit2, or others through apt-get.
• Uses or depends on frameworks that include native code.
• Accesses the resources or services of your Cloud Platform project that reside in the Compute Engine network.

Pricing | Based on usage of vCPU, memory, and persistent disks Issue with pricing as the free trial is in instance hours???? https://cloud.google.com/appengine/docs/the-appengine-environments

[mikenew]

OK so GAE standard supports 2.7 only .... GAE flexible supports 2.7 and 3.5 ....

Though flex may not be under GCS's free offerings ... and standard may not have the needed internet access ....

Have submitted a ticket with GCS support