I am new to Google App Engine and so, I just followed the procedure to test an application which just prints "hello world".
(followed according to Google App Engine Documentation)
The project folder name is "GoogleApp"
This is my Python file:
File Name : sayHello.py
#!/usr/bin/env python
def main():
print "hello"
pass
if __name__ == '__main__':
main()
This the yaml file
File Name : app.yaml
application: GoogleApp
version: 1
runtime: python27
api_version: 1
threadsafe: true
handlers:
- url: /.*
script: sayHello.py
When ever I just run the project in Google App Engine Launcher, this is the log error I am getting
2012-04-19 10:52:23 Running command: "['C:\\Python27\\pythonw.exe', 'C:\\Program Files\\Google\\google_appengine\\dev_appserver.py', '--admin_console_server=', '--port=8080', 'D:\\Code\\Projects\\IRCmathBot\\GoogleApp']"
Traceback (most recent call last):
File "C:\Program Files\Google\google_appengine\dev_appserver.py", line 125, in <module>
run_file(__file__, globals())
File "C:\Program Files\Google\google_appengine\dev_appserver.py", line 121, in run_file
execfile(script_path, globals_)
File "C:\Program Files\Google\google_appengine\google\appengine\tools\dev_appserver_main.py", line 157, in <module>
from google.appengine.tools import appcfg
File "C:\Program Files\Google\google_appengine\google\appengine\tools\appcfg.py", line 41, in <module>
import mimetypes
File "C:\Python27\lib\mimetypes.py", line 29, in <module>
import urllib
File "C:\Python27\lib\urllib.py", line 26, in <module>
import socket
File "C:\Python27\lib\socket.py", line 47, in <module>
import _socket
ImportError: Module use of python25.dll conflicts with this version of Python.
2012-04-19 10:52:25 (Process exited with code 1)
Actually, I use Python 2.7. The above log says that python25.dll conflicts with version of python.
I don't know what exactly it means but I could interpret that
It should either support only python 2.5 or
It I should have used python 2.5 code.
as the 2nd isn't possible and Google supports 2.7, I don't know what is this error.
Try to figure out myself but couldn't succeed.
I had a very similar problem (while running the tutorial code), and solved it by checking my PythonPath system environment variable.
For me, OpenCV edited the PythonPath variable to point to its own directory structure instead of the base Python installation itself.
You can edit the environment variables by opening up the 'Advanced System Properties' window and clicking on the 'Environment Variables' button. The 'PythonPath' variable under 'System Variables'. At the minimum, it should include the path of your python executable, such as 'C:\Python27\'.
Have you tried in command-line? Forget the launcher.
I had same problem! I re-installed Python several times, changed versions. It was hilarious.
With version 2.5 launcher can start the server, but the application doesn't work, but I can upload it online through launcher.
With Python ver. 2.7, launcher displays same problems you're dealing with. I also can't get the server started locally. But command-line works well, both starting the server locally and uploading online.
So I'll stick with version 2.7. Hope it helps, let me know..
You have threadsafe enabled, so you should use WSGI handlers. That could be the problem. I would replace your code with the following:
File: helloworld.py
import webapp2
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.headers['Content-Type'] = 'text/plain'
self.response.out.write('Hello, WebApp World!')
app = webapp2.WSGIApplication([('/', MainPage)])
File: app.yaml
application: GoogleApp
version: 1
runtime: python27
api_version: 1
threadsafe: true
handlers:
- url: /.*
script: helloworld.app
If using Python2.7 on Google AppEngine, refer to this official documentation to create your first "Hello World" Application.
I fixed this after 3 hrs of effort. Reinstall cannot solve my problem, messing around the user/system environment variable also not work.
Follow this step work:
Open Google Drive Perference, turn off auto run after win start up
turn off Google Drive
or simply uninstall google drive (Google Drive seems using Python 2.5 _socket library
uninstall python and GAE
reboot
install python27 and GAE
Most importantly, specify a new path, do not use the default c:\python27 again (I changed it to c:\mypython27. same as GAE, use a new path.
Then it works again.
Something's seriously broken with your Python 2.7 installation - parts of it are referencing Python 2.5 libraries. You should uninstall all versions of Python on your machine, and reinstall the version(s) you need.
I guess you've added the GAE path into the environment variable PATH? Just remove it.
I had exactly the same problem with you, it seems to me that Python 2.7 will try to use an incorrect _socket.pyd lib under GAE path, removing GAE path from PATH will fix this.
It needs no extra coding, just a tiny configuration of your win OS.
Since my OS language is Chinese, names of icons/links below are translated from Chinese by myself, which i cannot guarantee to be correct :(
Right click on the "Computer" icon, choose 'Properties', you'll see the system panel showing some basic system information;
Click on the "Advanced System Settings" link, you'll see the system property panel containing several tabs;
Choose the "Advanced" tab, there should be a button named "Environment variables" on the bottom, click on it then you can see a dialog displaying all environment variables of your system;
Find and edit the variable named "PATH" or "Path" (case insensible): if its value contains a path to your GAE, then remove the GAE path.
For me it was that I did set the System Variable PYTHONPATH to '.'. Deleting the variable did the job!
I set PYTHON_PATH to
"C:\Program Files\Google\google_appengine;C:\Program
Files\Google\google_appengine\lib\antlr3;C:\Program
Files\Google\google_appengine\lib\django_0_96;C:\Program
Files\Google\google_appengine\lib\fancy_urllib;C:\Program
Files\Google\google_appengine\lib\graphy;C:\Program
Files\Google\google_appengine\lib\ipaddr;C:\Program
Files\Google\google_appengine\lib\simplejson;C:\Program
Files\Google\google_appengine\lib\webob;C:\Program
Files\Google\google_appengine\lib\yaml\lib"
but then I realize that django 0.96 require python 2.5, so use django 1.4, and it works fine.
"C:\Program Files\Google\google_appengine;C:\Program
Files\Google\google_appengine\lib\antlr3;C:\Program
Files\Google\google_appengine\lib\django-1.4;C:\Program
Files\Google\google_appengine\lib\fancy_urllib;C:\Program
Files\Google\google_appengine\lib\graphy;C:\Program
Files\Google\google_appengine\lib\ipaddr;C:\Program
Files\Google\google_appengine\lib\simplejson;C:\Program
Files\Google\google_appengine\lib\webob;C:\Program
Files\Google\google_appengine\lib\yaml\lib"
If you have same problem as above, just check PATH, PYTHON_PATH to see whether mismatch version between library and python. Hope this help.
Some programs may modify the PYTHONPATH environment variable. If you check it's value (System -> Environment variables) and ensure it is set to the correct python 2.7 path (default C:\Python27) then this should fix the issue. In my case something had set it to my google appengine path.
ImportError: Module use of python25.dll conflicts with this version of Python.
The problem is that python25.dll conflicts with your Python 2.7 installation. This python25.dll comes from the greatly outdated Google App Engine Launcher for Windows and is located in C:\Program Files\Google\google_appengine\launcher
It is not a problem of your Python 2.7 install - it is a problem of Launcher, who injects its own Python path into app environment. To test that, add the following lines at the top of google_appengine/dev_appserver.py after first imports:
from pprint import pprint
pprint(sys.path)
Then re-run you app to get fresh log and see for yourself:
...
'C:\\OpenCV2.3\\opencv\\build\\python\\2.7',
'C:\\Google\\google_appengine\\launcher',
'C:\\Windows\\system32\\python27.zip',
'C:\\Python27\\DLLs',
...
I got the launcher from Python .msi SDK 1.8.8, and it is of course suxx that Google still ships several versions of SDK with broken GUI tool. To fix that, add the following after first imports in dev_appserver.py:
# --- Repair sys.path after broken GAE Windows Launcher
# see http://stackoverflow.com/questions/10222342/
ROOT = os.path.abspath(os.path.dirname(__file__))
LAUNCHPATH = os.path.join(ROOT, 'launcher')
if LAUNCHPATH in sys.path:
sys.stderr.write('[BUG] GAE Windows Launcher detected. Fixing..\n')
sys.path.remove(LAUNCHPATH)
# /--
Unfortunately, you'll need to repeat the procedure when new version of GAE comes out. There is an issue #8568 on AppEngine tracker that you can star and comment to make it fixed someday.
Do you have a PYTHONPATH variable in Environment Variables? delete it and restart the Google App Engine Launcher,it will work!
Related
I am using Windows 7 and creating APIs on the standard environment Cloud Endpoints Framework in Python. When I run command dev_appserver.py app.yaml and go to http://localhost:8080/_ah/api/explorer to test my API I get an ImportError with the last lines being:
File "C:\Python27\lib\platform.py", line 632, in win32_ver from _winreg
import OpenKeyEx, QueryValueEx, CloseKey, HKEY_LOCAL_MACHINE
File "C:\AppData\Local\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\
google\appengine\tools\devappserver2\python\sandbox.py", line 964, in load_module
raise ImportError('No module named %s' % fullname)
ImportError: No module named _winreg
When I deploy the API to google cloud it works fine. Also, when I use an older version of this library pip install -t lib google-endpoints --extra-index-url=https://gapi-pypi.appspot.com/admin/nurpc-dev --ignore-installed in my application, the dev_appserver works as expected. I think it's something to do with an update to this library?
Any help would be great.
try updating your libraries again, as new versions have come out recently. See if that fixes your issue!
This opened issue with the Google team explains a work around before a fix is released. Work around is also shown in this answer:
- Go to: <sdk_root>\google\appengine\tools\devappserver2\python\sandbox.py
- Find the definition of _WHITE_LIST_C_MODULES = [xxx]
- Add the following two lines to the list: '_winreg', '_ctypes',
I have followed all the steps on https://cloud.google.com/appengine/docs/go/#creating_a_simple_http_handler on how to get started with Go, but I am stuck on an issue while trying to run the helloworld app.
I get the following error:
C:\Users\kirill\Desktop\go_appengine>goapp serve myapp
Traceback (most recent call last):
File "C:\Users\kirill\Desktop\go_appengine\\dev_appserver.py", line 83, in <module>
_run_file(__file__, globals())
File "C:\Users\kirill\Desktop\go_appengine\\dev_appserver.py", line 79, in _run_file
execfile(_PATHS.script_file(script_name), globals_)
NameError: name 'execfile' is not defined
error while running dev_appserver.py: exit status 1
Go AppEngine SDK requires Python 2.7 (Python 3.x cannot be used). It looks to me your SDK is using Python 3.X or you don't have Python at all (in your PATH).
First make sure Python 2.7 is added to your PATH so that will be used by goapp. You can get it here: Python 2.7.11. For the Go AppEngine SDK a small, portable Python is also enough, you can get it from here: Single-File Stand-alone Python 2.7.9 for Windows. Download pyexe-2.7.9.10.zip and extract it. It's just a 10 MB single file, rename it to python.exe and add it to your PATH.
Also going further, it looks to me you are starting your Hello world app from the wrong folder: you are standing in the SDK's folder, and you want to start it specifying that your app is in the myapp subfolder inside your SDK, which is unlikely.
Navigate to the folder where you app is (app.yaml must be there). In that folder execute the command
goapp serve
This will start the app being in the current folder. For this to work, the goapp command (goapp.bat on windows) must be added to your PATH.
If you can't or don't want to add your go_appengine folder to your PATH, still navigate to the folder containing the app you want to start, but provide the path for goapp, e.g.
C:\Users\kirill\Desktop\go_appengine\goapp serve
I've just stumbled upon similar issue myself, In Python 3
Instead of
execfile("./filename")
Use
exec(open("./filename").read())
I'm trying to run pycrypto (2.6) on google app engine (1.9.32) with python 2.7 on windows 10.
I've added the following to my app.yaml:
libraries:
- name: pycrypto
version: "2.6"
and added the following config:
import os
os.environ['PYTHON_EGG_CACHE'] = '/tmp'
But I'm still getting the following error:
The Python egg cache directory is currently set to:
/tmp
Perhaps your account does not have write access to this directory?
You can
change the cache directory by setting the PYTHON_EGG_CACHE environment
variable to point to an accessible directory.
pycrypto works fine on windows 10 in python command line. The problem is just in the Google app engine.
How is it possible to work around this?
2 side notes:
The phenomenon is known as the Python egg error.
Windows 10 folder locking in read-only is documented. No solutions seemed to work so far.
I'm running a local development copy of Google AppEngine PHP SDK v1.8.0, with PHP v5.4.3 and Python v2.7, all under Windows 7 64bit.
I have followed instructions from a number of posts both here and elsewhere in order to register Python with my OS and to properly install the Python PIL module.
The last post I found here Unable to find the Python PIL library.Google App Engine. I have therefore added :
libraries:
- name: PIL
version: 1.1.7
to app.yaml.
I now receive the error quoted in the title of this post. If anyone can advise, I would be grateful.
Thankyou.
I think what #Tim was trying to say is that you should change your app.yaml to say "runtime: python27" instead of "runtime: php" since, as the error suggests, the PIL library is only supported by python27, not php.
I am trying to test a Google App Engine app with dev_appserver.py, but when I run import Crypto I get the following excerpted from the IOError (i.e. No access) traceback:
...
import Crypto
...
File "/System/Library/Frameworks/Python.framework/Versions
/2.7/lib/python2.7/zipfile.py", line 867, in read
return self.open(name, "r", pwd).read()
File "/System/Library/Frameworks/Python.framework/Versions
/2.7/lib/python2.7/zipfile.py", line 882, in open
zef_file = open(self.filename, 'rb')
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google
/appengine/tools/dev_appserver_import_hook.py", line 592, in __init__
raise IOError(errno.EACCES, 'file not accessible', filename)
IOError: [Errno 13] file not accessible: '/Library/Python/2.7/site-packages
/pycrypto-2.3-py2.7-macosx-10.7-intel.egg'
I am on Mac OS X 10.7, with Google App Engine 1.6.6 using Python 2.7.
Since PyCrypto is supported on Google App Engine, I would expect it to work on the development server.
I am aware that dev_appserver.py prevents loading external files. However, I noted that appengine/tools/dev_appserver_import_hook.py seems to have all the requisite files in the whitelist (e.g._fastmath).
Note, in app.yaml I have
libraries:
- name: pycrypto
version: latest
It seems as though I am missing something obvious but crucial. Any thoughts would be appreciated.
EDIT For more details see: https://code.google.com/p/googleappengine/issues/detail?id=12129
Yes, you have to install the third-party library yourself.
Google explains exactly which versions the provide on their platform,
so this should not be any problem.
The best way to get through this is create a virtual environment and install the pycrypto inside that. The reason your libraries inside app.yaml is not detected is most probably because you have multiple versions of python installed in your machine and the version you used to run the program might not be the same version where you installed the libraries