I want to use matplotlib in my Google App Engine project. I followed the steps, described here in the official docs. What I did:
1) Created a directory named lib in my application root directory.
2) Created a file appengine_config.py in my application root directory and added there these lines:
from google.appengine.ext import vendor
vendor.add('lib')
3) Since the docs say, that the only version of matplotlib working is 1.2.0, I executed the following command in the Terminal:
pip install -t lib matplotlib==1.2.0
There is also step 0 in the docs, which says
Use pip to install the library and the vendor module to enable importing packages from the third-party library directory.
But I don't understand what it actually means. If this is something essential, please, explain to me what it's meant here. I found this answer here on stackoverflow, and It seems there is nothing different from what I have done.
Also, I added
libraries:
- name: matplotlib
version: "1.2.0"
to app.yaml.
So, after all these steps I add the line
import matplotlib
to main.py and start a local server with
python ~/path/google_appengine/dev_appserver.py app.yaml
But when I try to access http://localhost:8080/, the error is raised:
raise ImportError('No module named %s' % fullname)
ImportError: No module named _ctypes
The whole output, if needed, looks like this:
ERROR 2016-08-11 16:26:51,621 wsgi.py:263]
Traceback (most recent call last):
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/runtime/wsgi.py", line 240, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler
handler, path, err = LoadObject(self._handler)
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/runtime/wsgi.py", line 85, in LoadObject
obj = __import__(path[0])
File "/home/magnitofon/realec-inspector/main.py", line 20, in <module>
import matplotlib
File "/home/magnitofon/realec-inspector/lib/matplotlib/__init__.py", line 151, in <module>
from matplotlib.rcsetup import (defaultParams,
File "/home/magnitofon/realec-inspector/lib/matplotlib/rcsetup.py", line 20, in <module>
from matplotlib.colors import is_color_like
File "/home/magnitofon/realec-inspector/lib/matplotlib/colors.py", line 52, in <module>
import numpy as np
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/tools/devappserver2/python/sandbox.py", line 705, in load_module
module = self._find_and_load_module(fullname, fullname, [module_path])
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/tools/devappserver2/python/sandbox.py", line 446, in _find_and_load_module
return imp.load_module(fullname, source_file, path_name, description)
File "/usr/local/lib/python2.7/dist-packages/numpy/__init__.py", line 180, in <module>
from . import add_newdocs
File "/usr/local/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "/usr/local/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 8, in <module>
from .type_check import *
File "/usr/local/lib/python2.7/dist-packages/numpy/lib/type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "/usr/local/lib/python2.7/dist-packages/numpy/core/__init__.py", line 22, in <module>
from . import _internal # for freeze programs
File "/usr/local/lib/python2.7/dist-packages/numpy/core/_internal.py", line 14, in <module>
import ctypes
File "/usr/lib/python2.7/ctypes/__init__.py", line 10, in <module>
from _ctypes import Union, Structure, Array
File "/home/magnitofon/Загрузки/google_appengine/google/appengine/tools/devappserver2/python/sandbox.py", line 963, in load_module
raise ImportError('No module named %s' % fullname)
ImportError: No module named _ctypes
What am I doing wrong?
