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key error when running local app example with dev_appserver.py

I am trying to run the appengine-endpoints-helloendpoints-python app locally using the google cloud platform SDK (which has been added to my path) using the command dev_appserver.py from the command line. It used to run perfectly, but now when I try, I get an error:
Error processing line 2 of
/Users/hannah/anaconda3/envs/py27/lib/python2.7/site-packages/grpc_google_pubsub_v1-0.8.1-py2.7-nspkg.pth:
Traceback (most recent call last):
File "/Users/hannah/anaconda3/envs/py27/lib/python2.7/site.py", line 161, in addpackage
exec line
File "<string>", line 1, in <module>
KeyError: 'google'
Remainder of file ignored
It's in a anaconda python2.7 environment. I've tried looking in site.py but I can't follow it back to a clear missing link.
The appcfg.py command used to deploy from the command line doens't work at all anymore. The command is not found.
bash: appcfg.py: command not found
As I said, I reinstalled and authorised the google cloud SDK and it is added to my path and that hasn't solved anything.
Oh finally, the error comes up whenever I run the dev_appserver.py command, not just with the example code from google.
Any tips would be appreciated

Using Google App Engine SDK for Python with Python 3

I have both Python 3.5.2 and Python 2.7.12 Installed (On Windows). But when I try to deploy from Using Google App Engine SDK for Python, I receive this error message:
in <module>
run_file(__file__, globals())
File "C:\Program Files (x86)\Google\google_appengine\appcfg.py", line 129, in run_file
execfile(_PATHS.script_file(script_name), globals_)
NameError: name 'execfile' is not defined
2016-08-17 11:28:50 (Process exited with code 1)
I can only deploy from the command line:
C:\Python27\python.exe "C:\Program Files (x86)\Google\google_appengine\appcfg.py" update app.yaml
Is there a way to deploy with Python 2 and not Python 3? Without using the command line? And how do I report to Google about this bug, I think if they want they can fix it for Google App Engine SDK.

You need to select the correct Python path, when you have multiple copies of Python the wrong path might be selected as the default.
Usually it's C:\Python27\pythonw.exe however it may be something else if you changed that during installation.
Go to the Google App Engine Launcher and change the path to the one you want in Edit/Preferences.

Google App Engine Local Host Issue

I'm new to Google App Engine and I followed multiple video tutorials (One from Udacity) and for some reason I am unable to get it to run on the local host with the simple "Hello World" program.
I do have the Python SDK installed as well as the Google App Engine program installed. I did modify the YAML file so that it matches with my application (it did by default). When I click "run" in the Google App Engine launcher, it shows a yellow triangle caution sign next to the program I'm attempting to run.
When I type the localhost:8080 in the search bar it says:
This webpage is not available
I've also tried reinstalling both Python 2.7.9 and the Google App Engine and to no avail. In short I would like to understand why the program shows no content when I attempt to run it. Here are the log files if it's any help:
2015-03-14 18:36:21 Running command: "['E:\\Python\\pythonw.exe', 'C:\\Program Files (x86)\\Google\\google_appengine\\dev_appserver.py', '--skip_sdk_update_check=yes', '--port=8080', '--admin_port=8000', 'C:\\Program Files (x86)\\Google\\google_appengine\\new_project_template']"
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\dev_appserver.py", line 83, in <module>
_run_file(__file__, globals())
File "C:\Program Files (x86)\Google\google_appengine\dev_appserver.py", line 79, in _run_file
execfile(_PATHS.script_file(script_name), globals_)
NameError: name 'execfile' is not defined
2015-03-14 18:36:21 (Process exited with code 1)

It looks like the default pythonw on your system (E:\Python\pythonw.exe) is some version of Python 3. That's where execfile is indeed not defined (and the GAE launcher's incompatible with Py3 in other ways, anyway, at this time).
To verify, run E:\Python\python.exe at a cmd prompt -- it should greet you with a version banner which I bet will mention Python 3.something.
Where did you (re-)install 2.7.9? How's your PATH environment variable? Likely with E:\Python before wherever 2.7.9 is installed.
Simplest might be to change your PATH so that wherever 2.7.9 is installed comes before E:\Python...!

Google app engine does not run local server

My helloworld code doesnt run on google app engine...
I use python 2.7.6 and google app engine version 1.8.8.
Here is what I get:
Traceback (most recent call last):
File "/home/yash/Google/google_appengine/old_dev_appserver.py", line 196, in <module>
run_file(__file__, globals())
File "/home/yash/Google/google_appengine/old_dev_appserver.py", line 192, in run_file
execfile(script_path, globals_)
File "/home/yash/Google/google_appengine/google/appengine/tools/dev_appserver_main.py", line 173, in <module>
from google.appengine.tools import appcfg
File "/home/yash/Google/google_appengine/google/appengine/tools/appcfg.py", line 74, in <module>
from google.appengine.tools import appengine_rpc
File "/home/yash/Google/google_appengine/google/appengine/tools/appengine_rpc.py", line 28, in <module>
import fancy_urllib
File "/home/yash/Google/google_appengine/lib/fancy_urllib/fancy_urllib/__init__.py", line 354, in <module>
class FancyHTTPSHandler(urllib2.HTTPSHandler):
AttributeError: 'module' object has no attribute 'HTTPSHandler'</i>

well...problem solved...i guess few libraries werent installed...compiled python 5-6 times after each library installation...
the problem wasnt in the GAE...it was the lack of required python modules
m still a noob...
Thanks for your time and help :)

Looks like you don't have python support for SSL.
Try this
pip install ssl
Read python-ssl docs for details.
From the docs
If you want to use native python ssl, you must enable it using the
libraries configuration in your application's app.yaml file where you
specify the library name "ssl", as shown here:
libraries:
- name: ssl
version: latest
Does your app.yaml contain this?

Your google appengine environment probably isn't installed properly. I'd recommend reinstalling the SDK and checking for errors in the installation.
If you're using something like virtualenv, it could be affecting the way your install works.

Opening Google App Engine in a Python script

I'm fairly new to programming and decided to setup a simple python script that would open all the applications I use for webapp development. The code I am using is (for GAE):
google_appengine = r'C:\Applications\google_app_engine\launcher\GoogleAppEngineLauncher.exe'
subprocess.Popen(google_appengine)
This works fine for the other programs I am opening, but I am unable to run any applications within App Engine after I have opened it this way. I get the following error in my App Engine log file:
Exception in thread Thread-2:
Traceback (most recent call last):
File "threading.pyc", line 486, in __bootstrap_inner
File "launcher\taskthread.pyc", line 65, in run
File "subprocess.pyc", line 587, in __init__
File "subprocess.pyc", line 700, in _get_handles
File "subprocess.pyc", line 745, in _make_inheritable
WindowsError: [Error 6] The handle is invalid
I'm guessing it is the way subprocess.Popen() works, but I haven't been able to find any alternatives. I'm running Windows 7 if that makes a difference. Thanks for looking.

if you want to manage the local dev_appserver, this is the wrong approach.
the best way to do this is clone the sdk repository (https://code.google.com/p/googleappengine/) directly to your drive and then add that path to your environment PYTHONPATH variable.
here's a link to a script template i created & often use to manage startup & killing of the dev_appserver process: https://gist.github.com/4514647
i'm not too familiar with managing a python environment on Windows, so you'd have to take my notes on a highlevel and research the specific implementation for that platform.