On Fri, Dec 2, 2016, 7:48 AM Pavel Konovalov ***@***.***> wrote:
Py.Import returns null when importing tensorflow at the same time python
from command line or from IDE works with that import without any problems.
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It could help debugging to do a throw new PythonException() immediately after the Py.Import. In fact, I think this should be done in any case, instead of returning null here.
That is anaconda with python 3.5 + tensorflow. I can give you remote access with team viewer to that env with installed VS and pythonnet sources. I can debug and see that in pythonnet hook routine looks like Py.Import return some error. But it structure is very unclear for new guy in this topic, like me.
Using importlib I found the exception thrown in tensorflow.python.platform.flags
using System;
using Python.Runtime;
namespace tensorflowinclr
{
class Program
{
static void Main(string[] args)
{
dynamic tf;
dynamic gpb;
dynamic np;
using (Py.GIL()) {
np = Py.Import("numpy");
gpb = Py.Import("google.protobuf");
tf = Py.Import("tensorflow");
//tf = Py.Import("tensorflow.python.platform.flags");
tf = Py.Import("importlib");
tf = tf.import_module("tensorflow");
if (tf == null) {
Console.WriteLine("bad import");
}
}
}
}
}
Unhandled Exception: Python.Runtime.PythonException: AttributeError : module 'sys' has no attribute 'argv'
at Python.Runtime.PyObject.Invoke(PyTuple args, PyDict kw) in C:\Users\denfromufa\Documents\pythonnet\src\runtime\pyobject.cs:line 688
at Python.Runtime.PyObject.InvokeMethod(String name, PyTuple args, PyDict kw) in C:\Users\denfromufa\Documents\pythonnet\src\runtime\pyobject.cs:line 756
at Python.Runtime.PyObject.TryInvokeMember(InvokeMemberBinder binder, Object[] args, Object& result) in C:\Users\denfromufa\Documents\pythonnet\src\runtime\pyobject.cs:line 1002
at CallSite.Target(Closure , CallSite , Object , String )
at System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1)
at tensorflowinclr.Program.Main(String[] args) in c:\users\denfromufa\documents\visual studio 2015\Projects\tensorflowinclr\tensorflowinclr\Program.cs:line 24
Press any key to continue . . .
I think the problem is that in pythonnet we are not setting sys.argv, like suggested in this question.
idk about another release, though I'm getting the hang of them and should be less painful now that the long description gets written from the readme.md.
Activity
den-run-ai commented on Dec 2, 2016
filmor commented on Dec 3, 2016
It could help debugging to do a throw new PythonException() immediately after the Py.Import. In fact, I think this should be done in any case, instead of returning null here.
snarb commented on Dec 4, 2016
That is anaconda with python 3.5 + tensorflow. I can give you remote access with team viewer to that env with installed VS and pythonnet sources. I can debug and see that in pythonnet hook routine looks like Py.Import return some error. But it structure is very unclear for new guy in this topic, like me.
den-run-ai commented on Dec 5, 2016
Using importlib I found the exception thrown in tensorflow.python.platform.flags
using System; using Python.Runtime; namespace tensorflowinclr { class Program { static void Main(string[] args) { dynamic tf; dynamic gpb; dynamic np; using (Py.GIL()) { np = Py.Import("numpy"); gpb = Py.Import("google.protobuf"); tf = Py.Import("tensorflow"); //tf = Py.Import("tensorflow.python.platform.flags"); tf = Py.Import("importlib"); tf = tf.import_module("tensorflow"); if (tf == null) { Console.WriteLine("bad import"); } } } } }I think the problem is that in pythonnet we are not setting sys.argv, like suggested in this question.
http://stackoverflow.com/questions/12230210/attributeerror-module-object-has-no-attribute-argv-when-using-python-h
@filmor what do you think?
den-run-ai commented on Dec 5, 2016
@pkonovalov-softheme I'm able to import tensorflow in pythonnet with this temp fix.
make a file setsysargv.py and save it in site-packages folder:
import it before tensorflow:
using System; using Python.Runtime; namespace tensorflowinclr { class Program { static void Main(string[] args) { dynamic tf; dynamic gpb; dynamic np; dynamic sys; using (Py.GIL()) { np = Py.Import("numpy"); gpb = Py.Import("google.protobuf"); sys = Py.Import("setsysargv"); tf = Py.Import("tensorflow"); if (tf == null) { Console.WriteLine("bad import"); } } } } }filmor commented on Dec 5, 2016
Maybe we could expose a SetArgv function on Py?
den-run-ai commented on Dec 5, 2016
@filmor it is already is, but it is not used in initialize:
pythonnet/src/runtime/runtime.cs
Line 2119 in e4b91d7
Update runtime.cs
den-run-ai commented on Dec 6, 2016
I put together a pull request to resolve this issue:
#301
snarb commented on Dec 27, 2016
Can be closed. Works. Thank you!
den-run-ai commented on Feb 1, 2017
vmuriart commented on Feb 1, 2017
idk about another release, though I'm getting the hang of them and should be less painful now that the long description gets written from the readme.md.
den-run-ai commented on Jul 1, 2017
here is example how to call into tensorflow from C# using pythonnet: #473