Won't start on windows 8.1 x64

[Raphi111]

Here is what I did:

Install python 3.4.4 (amd64) Install lastest PyQt4 (x64) Install spyder 2.8.4 (for python 3.4)

When I open a command line and launch spyder.bat, I get an image that opens and close immediately, and the command line closes itself. I can't provide more information by myself as the terminal closes itself. python3.4 is already in my "path" variable.

[ccordoba12]

You don't need to launch spyder.bat directly. You just need to open a terminal and run

spyder --show-console

to avoid the console being closed and see what errors appear there.

However, if you're new to Python, we recommend you to follow our installation instructions:

http://pythonhosted.org/spyder/installation.html

and use a Scientific Python Distribution (like Anaconda or WinPython) to install Spyder, instead of doing what you're doing right now :-)

[Raphi111]

Thanks for your help, I tried it already but running "spyder" in a terminal returns "command not found" error. Although I'm new to Python, I don't want to install a whole distribution as I don't need any of the extra packages they are offering.

[ccordoba12]

Well, if you can't run spyder you're already in troubles. That means that the Scripts directory is not in your PATH, which points to a problem with your installation.

I'd sincerely recommend you to uninstall what you have installed so far, and better install Miniconda (the lightweight version of Anaconda):

http://conda.pydata.org/miniconda.html

and then run this command in a terminal

conda install spyder

That will not only install Spyder but all its dependencies (something you're not doing with your current procedure).

If you persist in your current path, I'm afraid you're in your own to debug these problems :-)

[Raphi111]

After adding the "script" directory to my PATH variable, I'm able to launch spyder directly from the terminal with the --show-console parameter and here is what I get:

Traceback (most recent call last):
  File "C:\Program Files\Python34\Scripts\spyder", line 3, in <module>
    start_app.main()
  File "c:\program files\python34\lib\site-packages\spyderlib\start_app.py", lin
e 115, in main
    spyder.main()
  File "c:\program files\python34\lib\site-packages\spyderlib\spyder.py", line 2
278, in main
    app = initialize()
  File "c:\program files\python34\lib\site-packages\spyderlib\spyder.py", line 2
134, in initialize
    rope_patch.apply()
  File "c:\program files\python34\lib\site-packages\spyderlib\rope_patch.py", li
ne 131, in apply
    from rope.contrib import codeassist
  File "c:\program files\python34\lib\site-packages\spyderlib\utils\external\rop
e\contrib\codeassist.py", line 9, in <module>
    from rope.contrib import fixsyntax
  File "c:\program files\python34\lib\site-packages\spyderlib\utils\external\rop
e\contrib\fixsyntax.py", line 29
    except exceptions.ModuleSyntaxError, e:
                                       ^
SyntaxError: invalid syntax

What I don't understand is that I did everything written on the installation page (https://pythonhosted.org/spyder/installation.html#the-hard-way) and installed all the essential requirements but it still won't run.

[ccordoba12]

Yes, but the hard way is for experts, not newbies (hence its title ;-).

In any case, you hit a bug in our installers for Python 3 (we already fixed this for our next major version, Spyder 3.0, in case you want to complain more :-).

To fix it, you need to remove this folder:

C:\program files\python34\lib\site-packages\spyderlib\utils\external

And please don't forget to install the rest of our dependencies using pip. The installer doesn't come with them, and so if you don't install them you won't get any of the benefits Spyder has to offer. This is another thing we plan to fix in 3.0.

[ccordoba12]

Closing as a duplicate of issue #2648.