Fix Jupyter (#1223)

* Call PyErr_Print() in QtResImport()

* Fix Jupyter

scripts/pip_requirements.txt

@@ -1,2 +1,3 @@
 jupyter
 ipykernel==4.10.0
+pyzmq==17.1.2

src/common/QtResImporter.cpp

@@ -55,9 +55,13 @@ PyObject *QtResGetCode(const char *name)
 PyObject *QtResImport(const char *name)
 {
     PyObject *codeObject = QtResGetCode(name);
-    if (!codeObject)
+    if (!codeObject) {
         return nullptr;
+    }
     PyObject *module = PyImport_ExecCodeModule(name, codeObject);
+    if (!module) {
+        PyErr_Print();
+    }
     Py_DECREF(codeObject);
     return module;
 }

src/python/cutter.py

@@ -1,12 +1,17 @@
 import json
 from _cutter import *
+
+try:
     from CutterBindings import *
 
+    def core():
+        return CutterCore.instance()
+except ImportError:
+    pass
+
 
 def cmdj(command):
     """Execute a JSON command and return the result as a dictionary"""
     return json.loads(cmd(command))
 
 
-def core():
-    return CutterCore.instance()