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EtienneCmb / visbrain

A multi-purpose GPU-accelerated open-source suite for brain data visualization
http://visbrain.org
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Topo Error #18

Closed STREETKILLER007 closed 6 years ago

STREETKILLER007 commented 6 years ago

hello, developers, i am new in python.

i am trying to run this code in python.

111

but the error that i got is

112

after i read through the comment, i tried to install visbrain in developer mode and tried to run pip install matplotlib == 2.1.0 but it pops out this error 113

i tried to update my setuptools using pip install --upgrade setuptools but it did not solve my problem.

is there any suggestion to solve this error ?

thank you.

EtienneCmb commented 6 years ago

GitMate.io thinks possibly related issues are https://github.com/EtienneCmb/visbrain/issues/12 (Brain import error), https://github.com/EtienneCmb/visbrain/issues/13 (Import error: cannot import _cntr), and https://github.com/EtienneCmb/visbrain/issues/17 (Hello I cant open visbrain everytime i get same error ).

EtienneCmb commented 6 years ago

Hi @STREETKILLER007 , the command pip install matplotlib==2.1.0 doesn't works?

STREETKILLER007 commented 6 years ago

the command pip install matplotlib==2.1.0 doesn't work. it shows the red word error message.

EtienneCmb commented 6 years ago

May be this can help you, but I can't really help as I'v never experienced issues with matplotlib installation...

STREETKILLER007 commented 6 years ago

i see, i try to read through and try it out. Thank You.

STREETKILLER007 commented 6 years ago

update information 1) i am using windows 7 64 bit version. 2) i am using python 3.7 64 bit version. 3) the version of my pip version is as below

capture

4) the version of my setup tool version is as below

capture

5) the version of my matplotlib is as below

capture

6) tried to upgrade vispy, but it is up to date,

capture

EtienneCmb commented 6 years ago

Can you try to create a python 3.6 environnement?

STREETKILLER007 commented 6 years ago

since i am using python 3.7 and my pc can't support visual machine, so i am trying to uninstall python 3.7 and install python 3.6.

STREETKILLER007 commented 6 years ago

i installed python 3.6.

i run the code from my desktop. testpy

but another question appeared.

1) modulenotfound capture

===

but i saw the package in under C:\Users\JamesTan. visbrain

tried comment pip install visbrain but it ended up with this error error

tried comment pip install matplotlib==2.1.0 it works successfully.

STREETKILLER007 commented 6 years ago

I solved ModuleNotFound by following :

i tried to remove visbrain folder from C:\Users\JamesTan.

tried comment pip install visbrain it works. visbrain locat

i tried to run this file from my desktop. testpy

it pops out this error. python 3 6 error

the error message is as below ImportError : DLL load failed: The specified procedure could not be found.

STREETKILLER007 commented 6 years ago

i tried to download python 3.5.2 and deleted python 3.6.

and tried pip install matplotlib==2.1.0 and pip install visbrain this 2 comment succeeds.

when i try to run this. testpy

it still pops out this error. pythron 352 error

the error message still the same ImportError : DLL load failed: The specified procedure could not be found.

EtienneCmb commented 6 years ago

I'm not sure to understand why you can't have multiple environnement without removing / installing different python versions. You can install a package manager like anaconda and have multiple environnements.

Matplotlib installation run smoothly? I guess PyQt5 is not properly installed. It could also be an issue with ipython. Try to download this python source code and then from your terminal run python 00_basic_topoplot.py

STREETKILLER007 commented 6 years ago

i tried to download the python source code that you provided, then from my terminal, i run python 00_basic_topoplot.py

it pops up an error message, which is ImportError : DLL load failed: The specified procedure could not be found.

I tried to install anaconda. Thank for the knowledge.

STREETKILLER007 commented 6 years ago

i was using python 3.5.2. after running pip install matplotlib==2.1.0 and pip install visbrain i realized that PyQt5 is already inside Lib\site-packages.

STREETKILLER007 commented 6 years ago

tried to run this program using python 3.6 environment created by anaconda.

still show ImportError : DLL load failed: The specified procedure could not be found.

by the way, PyQt5 was already at latest version.

STREETKILLER007 commented 6 years ago

I tried to post this situation in stack over flow. You can refer to this

EtienneCmb commented 6 years ago

On stack overflow you said you tried to install PyQt using pip install PyQt5, you mean pip install pyqt5? Also, this might be interesting

STREETKILLER007 commented 6 years ago

i believe pyqt5 and PyQt5 are the same. i read the article, but still no solution.

EtienneCmb commented 6 years ago

well, yes... But I remember that using conda I had to conda install PyQt5 and using pip pip install pyqt5

STREETKILLER007 commented 6 years ago

i will try and see. but now i am using my real environment instead of visual environment...

EtienneCmb commented 6 years ago

Ok you don't use conda?

STREETKILLER007 commented 6 years ago

i am using conda to set up a python 3.6.0 environment. but in my real environment, i am using python 3.6.0.

i am trying to work out on my real environment.

EtienneCmb commented 6 years ago

Ok. I also remember that the PyQt5 import fail if it was using the conda one. May be you could remove PyQt5 and try to install it again using pip install pyqt5

STREETKILLER007 commented 6 years ago

i will try to remove PyQt5 from my real environment using pip uninstall pyqt5 and try to install it again using pip install pyqt5

STREETKILLER007 commented 6 years ago

ok, i tried to remove remove PyQt5 from my real environment using pip uninstall pyqt5and try to install it again using pip install pyqt5

but it still pops out the same error.

EtienneCmb commented 6 years ago

May be this can be interesting if you don't already saw it !

STREETKILLER007 commented 6 years ago

but the link that you shared is mostly on visual environment. but i am working on real environment...

EtienneCmb commented 6 years ago

Yes, but some people experienced issues with miktex

STREETKILLER007 commented 6 years ago

i uninstalled matplotlib by pip uninstall matplotlib and install it again by pip install matplotlib==2.1.0 in my real environment.

but it still pop out the same error.

by the way, i did not install miktex on my machine.

STREETKILLER007 commented 6 years ago

according to https://stackoverflow.com/questions/36666225/pyqt5-the-dll-load-failed-the-specified-module-could-not-be-found/36673656

i solved ImportError : DLL load failed: The specified procedure could not be found. by downgrading my python to python 3.5 since pyqt5 only support up to python 3.5 currently.

after i tried pip install visbrain, pyqt5 was installed, but ImportError : DLL load failed: The specified procedure could not be found. still pop out what i did was :
1) uninstall pyqt5 by pip uninstall pyqt5 2) downloaded pyqt5 from this download website since i am using 64 bit version. After that, install this downloaded file.

STREETKILLER007 commented 6 years ago

i tried to run the topo function that u passed to me a few days ago, it pops out this long error.

by the way, i am using Intel R HD Graphic.

Would like to know what should i modify in the example code to run this code, thank you.

WARNING: QWindowsWindow::setGeometry: Unable to set geometry 1188x907+8+30 on QW
idgetWindow/'MainWindowWindow'. Resulting geometry:  1188x750+8+30 (frame: 8, 30
, 8, 8, custom margin: 0, 0, 0, 0, minimum size: 3x59, maximum size: 16777215x16
777215).
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Traceback (most recent call last):
  File "test.py", line 17, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in sh
ow
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in r
un
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in
_vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in
event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in
paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call
__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invok
e_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle
_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exc
eption
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invok
e_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 207, in on_d
raw
    self._draw_scene()
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 253, in _dra
w_scene
    self.draw_visual(self.scene)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 291, in draw
_visual
    node.draw()
  File "D:\Python 35\lib\site-packages\vispy\scene\visuals.py", line 98, in draw

    self._visual_superclass.draw(self)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 588, in dr
aw
    v.draw()
  File "D:\Python 35\lib\site-packages\vispy\visuals\mesh.py", line 517, in draw

    Visual.draw(self, *args, **kwds)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 440, in dr
aw
    self._vshare.index_buffer)
  File "D:\Python 35\lib\site-packages\vispy\visuals\shaders\program.py", line 7
7, in draw
    Program.draw(self, *args, **kwargs)
  File "D:\Python 35\lib\site-packages\vispy\gloo\program.py", line 470, in draw

    canvas.context.flush_commands()
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 170, in flus
h_commands
    self.shared.parser.parse([('CURRENT', 0)])
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 404, in _parse
    self._gl_initialize()
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 502, in _gl_ini
tialize
    if this_version < '2.1':
  File "D:\Python 35\lib\distutils\version.py", line 52, in __lt__
    c = self._cmp(other)
  File "D:\Python 35\lib\distutils\version.py", line 335, in _cmp
    if self.version == other.version:
AttributeError: 'LooseVersion' object has no attribute 'version'
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0x6
d145f8>> for DrawEvent
WARNING: Traceback (most recent call last):
  File "test.py", line 17, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in sh
ow
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in r
un
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in
_vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in
event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in
paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call
__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invok
e_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle
_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exc
eption
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 116, in glBl
endFuncSeparate
    nativefunc = glBlendFuncSeparate._native
AttributeError: 'function' object has no attribute '_native'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 72, in _get_g
l_func
    func = getattr(_lib, name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 360, in __getattr__
    func = self.__getitem__(name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 365, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'glBlendFuncSeparate' not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invok
e_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 171, in flus
h_commands
    self.glir.flush(self.shared.parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 232, in flush
    self._shared.flush(parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 146, in flush
    parser.parse(self._filter(self.clear(), parser))
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 410, in _parse
    getattr(gl, id_)(*args)
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 118, in glBl
endFuncSeparate
    nativefunc = glBlendFuncSeparate._native = _get_gl_func("glBlendFuncSeparate
", None, (ctypes.c_uint, ctypes.c_uint, ctypes.c_uint, ctypes.c_uint,))
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 87, in _get_g
l_func
    raise RuntimeError('Using %s with no OpenGL context.' % name)
RuntimeError: Using glBlendFuncSeparate with no OpenGL context.
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xd894e8
0>> for DrawEvent
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0x6
d145f8>> repeat 2
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xd894e8
0>> repeat 2
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0x6
d145f8>> repeat 4
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xd894e8
0>> repeat 4
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0x6
d145f8>> repeat 8
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xd894e8
0>> repeat 8
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0x6
d145f8>> repeat 16
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xd894e8
0>> repeat 16
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
015065160>
sbhadr commented 6 years ago

Typically, this means that your setup tools are outdated. To update them, run the following in cmd prompt(elevated/administrator mode)(assuming that you allowed Python to add itself to your PATH): pip install --upgrade setuptools

Then you can do: pip install visbrain

If all else fails, you can try to do: pip install --upgrade setuptools --user python and then: pip install visbrain

STREETKILLER007 commented 6 years ago

i installed visbrain. Setuptool is also up to date.

sbhadr commented 6 years ago

Has the issue been solved?

STREETKILLER007 commented 6 years ago

In the beginning, after i installed python 3.5 in my environment, i typed pip install visbrain in cmd.

It will tell me to update setuptools.

After i typed pip install --upgrade setuptools, i typed pip install visbrain.

Visbrain installed successfully.

Qtwindows error has not been solve until now.

STREETKILLER007 commented 6 years ago

according to stack over flow link and qt forum, i simply tried to add 1 line on the code

from visbrain import Topo

# Create a topoplot instance :
t = Topo()

# Create a list of channels, data, title and colorbar label :
name = 'Topo_1'
channels = ['C3', 'C4', 'Cz', 'Fz', 'Pz']
data = [10, 20, 30, 10, 10]
title = 'Basic topoplot illustration'
cblabel = 'Colorbar label'

# Add a central topoplot :
t.add_topoplot(name, data, channels=channels, title=title, cblabel=cblabel)

# Show the window :
t.setGeometry(200,200,200,200)
t.show()

qtwindows is solved but now it pops out this error...

according to vispy, it said that opengl version must be at least 2.1. my opengl version is 3.1

WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x000000000FB288D0>
WARNING: Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "D:\Python 35\lib\idlelib\run.py", line 124, in main
    ret = method(*args, **kwargs)
  File "D:\Python 35\lib\idlelib\run.py", line 351, in runcode
    exec(code, self.locals)
  File "C:\Users\JamesTan\Desktop\testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in run
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in _vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invoke_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exception
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invoke_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 207, in on_draw
    self._draw_scene()
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 253, in _draw_scene
    self.draw_visual(self.scene)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 291, in draw_visual
    node.draw()
  File "D:\Python 35\lib\site-packages\vispy\scene\visuals.py", line 98, in draw
    self._visual_superclass.draw(self)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 588, in draw
    v.draw()
  File "D:\Python 35\lib\site-packages\vispy\visuals\mesh.py", line 517, in draw
    Visual.draw(self, *args, **kwds)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 440, in draw
    self._vshare.index_buffer)
  File "D:\Python 35\lib\site-packages\vispy\visuals\shaders\program.py", line 77, in draw
    Program.draw(self, *args, **kwargs)
  File "D:\Python 35\lib\site-packages\vispy\gloo\program.py", line 470, in draw
    canvas.context.flush_commands()
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 170, in flush_commands
    self.shared.parser.parse([('CURRENT', 0)])
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 404, in _parse
    self._gl_initialize()
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 502, in _gl_initialize
    if this_version < '2.1':
  File "D:\Python 35\lib\distutils\version.py", line 52, in __lt__
    c = self._cmp(other)
  File "D:\Python 35\lib\distutils\version.py", line 335, in _cmp
    if self.version == other.version:
AttributeError: 'LooseVersion' object has no attribute 'version'
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xe13bda0>> for DrawEvent
WARNING: Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "D:\Python 35\lib\idlelib\run.py", line 124, in main
    ret = method(*args, **kwargs)
  File "D:\Python 35\lib\idlelib\run.py", line 351, in runcode
    exec(code, self.locals)
  File "C:\Users\JamesTan\Desktop\testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in run
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in _vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invoke_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exception
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 116, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native
AttributeError: 'function' object has no attribute '_native'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 72, in _get_gl_func
    func = getattr(_lib, name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 360, in __getattr__
    func = self.__getitem__(name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 365, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'glBlendFuncSeparate' not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invoke_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 171, in flush_commands
    self.glir.flush(self.shared.parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 232, in flush
    self._shared.flush(parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 146, in flush
    parser.parse(self._filter(self.clear(), parser))
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 410, in _parse
    getattr(gl, id_)(*args)
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 118, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native = _get_gl_func("glBlendFuncSeparate", None, (ctypes.c_uint, ctypes.c_uint, ctypes.c_uint, ctypes.c_uint,))
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 87, in _get_gl_func
    raise RuntimeError('Using %s with no OpenGL context.' % name)
RuntimeError: Using glBlendFuncSeparate with no OpenGL context.
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xf1316a0>> for DrawEvent
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x000000000FB288D0>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xe13bda0>> repeat 2
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xf1316a0>> repeat 2
EtienneCmb commented 6 years ago

Thx @Sanjay-B for the help,

raise RuntimeError('Using %s with no OpenGL context.' % name) usually pop out when PyQt5 is not properly installed

sbhadr commented 6 years ago

Usually when that error occurs, it means that it’s incompatible with the version of Python the developer is trying to develop on.

I’m not entirely sure what dependencies PyQt5 requires and if those are compatible with the current version of Python on said platform. Python doesn’t exactly provide the best error messages. :P

STREETKILLER007 commented 6 years ago

@EtienneCmb i downloaded pyqt5 from the link that i provided and ImportError : DLL load failed: The specified procedure could not be found. solved. if i type pip install pyqt5, ImportError : DLL load failed: The specified procedure could not be found. will appear.

STREETKILLER007 commented 6 years ago

@Sanjay-B u said :"Usually when that error occurs, it means that it’s incompatible with the version of Python the developer is trying to develop on.". What error do you mean ?

STREETKILLER007 commented 6 years ago

i tried to uninstall pyqt5 on my environment, tried to pip install pyqt5

after that, this error pops out.

testtopo

i tried to update sip

C:\Users\JamesTan>pip install --upgrade sip
Collecting sip
  Downloading https://files.pythonhosted.org/packages/15/75/bf654c02d5df484d8d33
6cb76629d1f651905a0b23f34fcc1853d07fa5a8/sip-4.19.8-cp35-none-win_amd64.whl (51k
B)
    39% |█████████████                   | 20kB 353kB/s eta 0:00:01
    59% |███████████████████             | 30kB 374kB/s eta 0
    79% |█████████████████████████▌      | 40kB 401kB/
    99% |████████████████████████████████| 51kB
    100% |████████████████████████████████| 61kB
 543kB/s
Installing collected packages: sip
Successfully installed sip-4.19.8

it seems that, sip installed successfully.

but the error still the same, which is 

Traceback (most recent call last):
  File "C:\Users\JamesTan\Desktop\testtopo.py", line 1, in <module>
    from visbrain import Topo
  File "D:\Python 35\lib\site-packages\visbrain\__init__.py", line 23, in <module>
    from .brain import Brain
  File "D:\Python 35\lib\site-packages\visbrain\brain\__init__.py", line 2, in <module>
    from .brain import Brain
  File "D:\Python 35\lib\site-packages\visbrain\brain\brain.py", line 13, in <module>
    from .interface import UiInit, UiElements, BrainShortcuts
  File "D:\Python 35\lib\site-packages\visbrain\brain\interface\__init__.py", line 2, in <module>
    from .ui_init import UiInit, BrainShortcuts
  File "D:\Python 35\lib\site-packages\visbrain\brain\interface\ui_init.py", line 9, in <module>
    from PyQt5 import QtWidgets
ImportError: No module named 'PyQt5.sip'
STREETKILLER007 commented 6 years ago

ok, i finally solved the ImportError problem.

according to https://blog.csdn.net/qq_41185868/article/details/80903095 it said that Incompatibilities with pyqt5 version and SIP version. and it said that if sip version is 4.19.8, PyQt5 version have to be 5.10.1.

so what i tried was uninstalled PyQt5 by pip uninstall pyqt5, and installed 5.10.1 version by pip install pyqt5==5.10.1

the result is as below.

capture

below is result for my current pip list

C:\Users\JamesTan>pip list
Package         Version
--------------- -------
click           6.7
cycler          0.10.0
kiwisolver      1.0.1
matplotlib      2.1.0
numpy           1.15.0
Pillow          5.2.0
pip             18.0
pyparsing       2.2.0
PyQt5           5.10.1
PyQt5-sip       4.19.12
python-dateutil 2.7.3
pytz            2018.5
scipy           1.1.0
setuptools      40.0.0
sip             4.19.8
six             1.11.0
visbrain        0.4.2
vispy           0.5.3
wheel           0.31.1
STREETKILLER007 commented 6 years ago

finally this is still the head pain part.

i tried to run 

from visbrain import Topo

# Create a topoplot instance :
t = Topo()

# Create a list of channels, data, title and colorbar label :
name = 'Topo_1'
channels = ['C3', 'C4', 'Cz', 'Fz', 'Pz']
data = [10, 20, 30, 10, 10]
title = 'Basic topoplot illustration'
cblabel = 'Colorbar label'

# Add a central topoplot :
t.add_topoplot(name, data, channels=channels, title=title, cblabel=cblabel)

# Show the window :
t.setGeometry(200,200,200,200)
t.show()

it still pops out this long error.

WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "D:\Python 35\lib\idlelib\run.py", line 124, in main
    ret = method(*args, **kwargs)
  File "D:\Python 35\lib\idlelib\run.py", line 351, in runcode
    exec(code, self.locals)
  File "C:\Users\JamesTan\Desktop\testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in run
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in _vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invoke_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exception
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invoke_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 207, in on_draw
    self._draw_scene()
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 253, in _draw_scene
    self.draw_visual(self.scene)
  File "D:\Python 35\lib\site-packages\vispy\scene\canvas.py", line 291, in draw_visual
    node.draw()
  File "D:\Python 35\lib\site-packages\vispy\scene\visuals.py", line 98, in draw
    self._visual_superclass.draw(self)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 588, in draw
    v.draw()
  File "D:\Python 35\lib\site-packages\vispy\visuals\mesh.py", line 517, in draw
    Visual.draw(self, *args, **kwds)
  File "D:\Python 35\lib\site-packages\vispy\visuals\visual.py", line 440, in draw
    self._vshare.index_buffer)
  File "D:\Python 35\lib\site-packages\vispy\visuals\shaders\program.py", line 77, in draw
    Program.draw(self, *args, **kwargs)
  File "D:\Python 35\lib\site-packages\vispy\gloo\program.py", line 470, in draw
    canvas.context.flush_commands()
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 170, in flush_commands
    self.shared.parser.parse([('CURRENT', 0)])
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 404, in _parse
    self._gl_initialize()
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 502, in _gl_initialize
    if this_version < '2.1':
  File "D:\Python 35\lib\distutils\version.py", line 52, in __lt__
    c = self._cmp(other)
  File "D:\Python 35\lib\distutils\version.py", line 335, in _cmp
    if self.version == other.version:
AttributeError: 'LooseVersion' object has no attribute 'version'
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xeb5df28>> for DrawEvent
WARNING: Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "D:\Python 35\lib\idlelib\run.py", line 124, in main
    ret = method(*args, **kwargs)
  File "D:\Python 35\lib\idlelib\run.py", line 351, in runcode
    exec(code, self.locals)
  File "C:\Users\JamesTan\Desktop\testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Python 35\lib\site-packages\visbrain\pyqt_module.py", line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Python 35\lib\site-packages\vispy\app\application.py", line 142, in run
    return self._backend._vispy_run()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 229, in _vispy_run
    return app.exec_()
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Python 35\lib\site-packages\vispy\app\backends\_qt.py", line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 475, in _invoke_callback
    self, cb_event=(cb, event))
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 323, in _handle_exception
    logger.log_exception()
  File "D:\Python 35\lib\site-packages\vispy\util\logs.py", line 265, in log_exception
    stack = "".join(traceback.format_stack()[:-tb_skip])
  << caught exception here: >>
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 116, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native
AttributeError: 'function' object has no attribute '_native'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 72, in _get_gl_func
    func = getattr(_lib, name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 360, in __getattr__
    func = self.__getitem__(name)
  File "D:\Python 35\lib\ctypes\__init__.py", line 365, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'glBlendFuncSeparate' not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python 35\lib\site-packages\vispy\util\event.py", line 471, in _invoke_callback
    cb(event)
  File "D:\Python 35\lib\site-packages\vispy\gloo\context.py", line 171, in flush_commands
    self.glir.flush(self.shared.parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 232, in flush
    self._shared.flush(parser)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 146, in flush
    parser.parse(self._filter(self.clear(), parser))
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 477, in parse
    self._parse(command)
  File "D:\Python 35\lib\site-packages\vispy\gloo\glir.py", line 410, in _parse
    getattr(gl, id_)(*args)
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\_gl2.py", line 118, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native = _get_gl_func("glBlendFuncSeparate", None, (ctypes.c_uint, ctypes.c_uint, ctypes.c_uint, ctypes.c_uint,))
  File "D:\Python 35\lib\site-packages\vispy\gloo\gl\gl2.py", line 87, in _get_gl_func
    raise RuntimeError('Using %s with no OpenGL context.' % name)
RuntimeError: Using glBlendFuncSeparate with no OpenGL context.
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xfb827f0>> for DrawEvent
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xeb5df28>> repeat 2
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xfb827f0>> repeat 2
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xeb5df28>> repeat 4
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xfb827f0>> repeat 4
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xeb5df28>> repeat 8
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xfb827f0>> repeat 8
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x00000000163E18D0>
STREETKILLER007 commented 6 years ago

in my Anaconda3 environment, i am using python 3.6.

pip list of the environment.

(myenv3604) C:\Users\JamesTan>pip list
Package         Version
--------------- ---------
certifi         2018.4.16
click           6.7
cycler          0.10.0
kiwisolver      1.0.1
matplotlib      2.2.0
mkl-fft         1.0.4
mkl-random      1.0.1
numpy           1.15.0
Pillow          5.2.0
pip             18.0
pyparsing       2.2.0
PyQt5           5.11.2
PyQt5-sip       4.19.12
python-dateutil 2.7.3
pytz            2018.5
scipy           1.1.0
setuptools      40.0.0
six             1.11.0
visbrain        0.4.2
vispy           0.5.3
wheel           0.31.1
wincertstore    0.2

tried to run testtopo.py, which is 

from visbrain import Topo

# Create a topoplot instance :
t = Topo()

the compatible error occured, forced to me to use matplotlib 2.1.0

(myenv3604) C:\Users\JamesTan\Desktop>python testtopo.py
D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\isocurve.py:22: User
Warning: VisPy is not yet compatible with matplotlib 2.2+
  warnings.warn("VisPy is not yet compatible with matplotlib 2.2+")
EtienneCmb commented 6 years ago

Install the latest vispy version : pip install git+https://github.com/vispy/vispy.git, i think they removed this warning message

EtienneCmb commented 6 years ago

If I remember correctly, vispy was using iscocurve from Matplotlib 2.1. Then, isocurve has been removed from Matplotlib 2.2+ and vispy add this warning message. So, two possibilities :

STREETKILLER007 commented 6 years ago

When i typed pip install --upgrade pyqt5 or pip install --upgrade matplotlib==2.2.0, i saw these 2 red line, wondering will them affect Visbrain.

mkl-random 1.0.1 requires cython, which is not installed.
mkl-fft 1.0.4 requires cython, which is not installed.

I try to install vispy latest version, hope it helps.

EtienneCmb commented 6 years ago
STREETKILLER007 commented 6 years ago

tried pip list again.

it is still the same.

(myenv3604) C:\Users\JamesTan>pip list
Package         Version
--------------- ---------
certifi         2018.4.16
click           6.7
cycler          0.10.0
kiwisolver      1.0.1
matplotlib      2.2.0
mkl-fft         1.0.4
mkl-random      1.0.1
numpy           1.15.0
Pillow          5.2.0
pip             18.0
pyparsing       2.2.0
PyQt5           5.11.2
PyQt5-sip       4.19.12
python-dateutil 2.7.3
pytz            2018.5
scipy           1.1.0
setuptools      40.0.0
six             1.11.0
visbrain        0.4.2
vispy           0.5.3
wheel           0.31.1
wincertstore    0.2

Vispy is in latest version. They are trying to solve VisPy is not yet compatible with matplotlib 2.2+ as you said. reference : http://vispy.org/releasenotes.html

PyQt5 is in latest version. reference : https://pypi.org/project/PyQt5/

I upgraded PyQt5 just now because i downgraded PyQt5 to 5.10.1.

Tried Topo, it still pops out this error.

(myenv3604) C:\Users\JamesTan\Desktop>python testtopofull.py
D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\isocurve.py:22: User
Warning: VisPy is not yet compatible with matplotlib 2.2+
  warnings.warn("VisPy is not yet compatible with matplotlib 2.2+")
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
013B3B208>
WARNING: Traceback (most recent call last):
  File "testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\visbrain\pyqt_module.py",
line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\application.py",
 line 142, in run
    return self._backend._vispy_run()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 229, in _vispy_run
    return app.exec_()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 475, in _invoke_callback
    self, cb_event=(cb, event))
  << caught exception here: >>
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 471, in _invoke_callback
    cb(event)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\scene\canvas.py", li
ne 207, in on_draw
    self._draw_scene()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\scene\canvas.py", li
ne 253, in _draw_scene
    self.draw_visual(self.scene)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\scene\canvas.py", li
ne 291, in draw_visual
    node.draw()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\scene\visuals.py", l
ine 98, in draw
    self._visual_superclass.draw(self)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\visual.py",
line 588, in draw
    v.draw()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\mesh.py", li
ne 517, in draw
    Visual.draw(self, *args, **kwds)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\visual.py",
line 440, in draw
    self._vshare.index_buffer)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\visuals\shaders\prog
ram.py", line 77, in draw
    Program.draw(self, *args, **kwargs)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\program.py", li
ne 470, in draw
    canvas.context.flush_commands()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\context.py", li
ne 170, in flush_commands
    self.shared.parser.parse([('CURRENT', 0)])
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
477, in parse
    self._parse(command)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
404, in _parse
    self._gl_initialize()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
502, in _gl_initialize
    if this_version < '2.1':
  File "D:\Anaconda3\envs\myenv3604\lib\distutils\version.py", line 52, in __lt_
_
    c = self._cmp(other)
  File "D:\Anaconda3\envs\myenv3604\lib\distutils\version.py", line 335, in _cmp

    if self.version == other.version:
AttributeError: 'LooseVersion' object has no attribute 'version'
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xb
2e76a0>> for DrawEvent
WARNING: Traceback (most recent call last):
  File "testtopofull.py", line 18, in <module>
    t.show()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\visbrain\pyqt_module.py",
line 106, in show
    CONFIG['VISPY_APP'].run()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\application.py",
 line 142, in run
    return self._backend._vispy_run()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 229, in _vispy_run
    return app.exec_()
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 436, in event
    out = super(QtBaseCanvasBackend, self).event(ev)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\app\backends\_qt.py"
, line 708, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 455, in __call__
    self._invoke_callback(cb, event)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 475, in _invoke_callback
    self, cb_event=(cb, event))
  << caught exception here: >>
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\gl\_gl2.py", li
ne 116, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native
AttributeError: 'function' object has no attribute '_native'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\gl\gl2.py", lin
e 72, in _get_gl_func
    func = getattr(_lib, name)
  File "D:\Anaconda3\envs\myenv3604\lib\ctypes\__init__.py", line 364, in __geta
ttr__
    func = self.__getitem__(name)
  File "D:\Anaconda3\envs\myenv3604\lib\ctypes\__init__.py", line 369, in __geti
tem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'glBlendFuncSeparate' not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\util\event.py", line
 471, in _invoke_callback
    cb(event)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\context.py", li
ne 171, in flush_commands
    self.glir.flush(self.shared.parser)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
232, in flush
    self._shared.flush(parser)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
146, in flush
    parser.parse(self._filter(self.clear(), parser))
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
477, in parse
    self._parse(command)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\glir.py", line
410, in _parse
    getattr(gl, id_)(*args)
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\gl\_gl2.py", li
ne 118, in glBlendFuncSeparate
    nativefunc = glBlendFuncSeparate._native = _get_gl_func("glBlendFuncSeparate
", None, (ctypes.c_uint, ctypes.c_uint, ctypes.c_uint, ctypes.c_uint,))
  File "D:\Anaconda3\envs\myenv3604\lib\site-packages\vispy\gloo\gl\gl2.py", lin
e 87, in _get_gl_func
    raise RuntimeError('Using %s with no OpenGL context.' % name)
RuntimeError: Using glBlendFuncSeparate with no OpenGL context.
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xb2ffeb
8>> for DrawEvent
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
013B3B208>
ERROR: Invoking <bound method SceneCanvas.on_draw of <SceneCanvas (PyQt5) at 0xb
2e76a0>> repeat 2
ERROR: Invoking <bound method GLContext.flush_commands of <GLContext at 0xb2ffeb
8>> repeat 2
WARNING: Error drawing visual <vispy.visuals.mesh.MeshVisual object at 0x0000000
013B3B208>
EtienneCmb commented 6 years ago

Ok, for now, forget about the latest vispy version and compatibility with matplotlib. Vispy example is still working?