I'm using Spyder 3.1.3 from the Anaconda 3.4.14 distribution with Python
3.6 on 64-bit Windows 7, and I'm trying to use JPype1 0.6.2 to work with a
third party software package via its Java API. The code example from the
supplier, reduced to a minimal example, is:
from jpype import *
classpath = "C:\\Program Files\\Bayes Server\\Bayes Server
7.10\\API\\Java\\bayesserver-7.10.jar"
startJVM(getDefaultJVMPath(), "-Djava.class.path=%s" % classpath)
# do stuff with the API here
shutdownJVM()
This seems to work correctly when run from the Anaconda prompt, or from
IDLE: the console shows that the JVM has started, some classes have been
loaded, any code at 'do stuff here' runs, and the JVM shuts down again.
However when I try and run this in Spyder it works once (including showing
that the JVM was shut down, if in the Python console), but attempting to
run it a second time gives the following error:
>>> runfile('D:/tempcode/bayesservermintest.py', wdir='D:/tempcode')
Traceback (most recent call last):
File "<ipython-input-2-d85ae28a48f0>", line 1, in <module>
runfile('D:/tempcode/bayesservermintest.py', wdir='D:/tempcode')
File
"C:\Users\zzzzzz\AppData\Local\Continuum\Anaconda3\envs\withjpype\lib\site-packages\spyder\utils\site\sitecustomize.py"
, line 866, in runfile
execfile(filename, namespace)
File
"C:\Users\zzzzzz\AppData\Local\Continuum\Anaconda3\envs\withjpype\lib\site-packages\spyder\utils\site\sitecustomize.py"
, line 102, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "D:/tempcode/bayesservermintest.py", line 13, in <module>
startJVM(getDefaultJVMPath(), "-Djava.class.path=%s" % classpath)
File
"C:\Users\zzzzzz\AppData\Local\Continuum\Anaconda3\envs\withjpype\lib\site-packages\jpype\_core.py"
, line 50, in startJVM
_jpype.startup(jvm, tuple(args), True)
RuntimeError: Unable to start JVM at native\common\jp_env.cpp:78
Spyder's Python and IPython consoles both give the same error. To get it to
run again I have to close the console and open a new one.
Any ideas on what's going wrong here or how I can diagnose the problem
please?
--
You received this message because you are subscribed to the Google Groups
"spyder" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/spyderlib.
For more options, visit https://groups.google.com/d/optout.
