KDevelop crashes when I try to load project that is mainly written in python. Please note that I'm using frameworks branch of kdev-python together with master of both kdevplatform and kdevelop.

Backtrace:
#0  0x00007fffebde85f2 in KDevelop::DUContext::findDeclarations(KDevelop::QualifiedIdentifier const&, KDevelop::CursorInRevision const&, KDevelop::TypePtr<KDevelop::AbstractType> const&, KDevelop::TopDUContext const*, QFlags<KDevelop::DUContext::SearchFlag>) const (this=0x0, identifier=..., position=..., dataType=..., topContext=topContext@entry=0x0, flags=...) at ../../language/duchain/ducontext.cpp:775
#1  0x00007fffad12fe4f in Python::ExpressionVisitor::<lambda(const Ptr&)>::operator()(const KDevelop::AbstractType::Ptr &) const (__closure=__closure@entry=0x7fffaea2aef0, p=...) at ../../duchain/expressionvisitor.cpp:675
#2  0x00007fffad1300d0 in Python::ExpressionVisitor::fromBinaryOperator(KDevelop::TypePtr<KDevelop::AbstractType>, KDevelop::TypePtr<KDevelop::AbstractType>, QString const&) (this=this@entry=0x7fffaea2b170, lhs=..., rhs=..., op=...) at ../../duchain/expressionvisitor.cpp:683
#3  0x00007fffad1303a0 in Python::ExpressionVisitor::visitBinaryOperation(Python::BinaryOperationAst*) (this=0x7fffaea2b170, node=0x7fffa0268690) at ../../duchain/expressionvisitor.cpp:703
#4  0x00007fffad157bba in Python::DeclarationBuilder::visitReturn(Python::ReturnAst*) (this=0x7fffa00dd570, node=0x7fffa0268650) at ../../duchain/declarationbuilder.cpp:1779
#5  0x00007fffad14e485 in Python::ContextBuilder::visitFunctionBody(Python::FunctionDefinitionAst*) (l=..., this=0x7fffa00dd570) at ../../duchain/contextbuilder.h:179
#6  0x00007fffad14e485 in Python::ContextBuilder::visitFunctionBody(Python::FunctionDefinitionAst*) (this=0x7fffa00dd570, node=<optimized out>) at ../../duchain/contextbuilder.cpp:476
#7  0x00007fffad16184c in Python::DeclarationBuilder::visitFunctionDefinition(Python::FunctionDefinitionAst*) (this=0x7fffa00dd570, node=0x7fffa0268240) at ../../duchain/declarationbuilder.cpp:1568
#8  0x00007fffad160f5b in Python::DeclarationBuilder::visitClassDefinition(Python::ClassDefinitionAst*) (this=0x7fffa00dd570, node=0x7fffa0248b40) at ../../duchain/declarationbuilder.cpp:1482
#9  0x00007fffad3a51fd in Python::AstDefaultVisitor::visitCode(Python::CodeAst*) (this=this@entry=0x7fffa00dd5c8, node=node@entry=0x7fffa00e8ef0) at ../../parser/astdefaultvisitor.cpp:77
#10 0x00007fffad1504e0 in Python::ContextBuilder::visitCode(Python::CodeAst*) (this=0x7fffa00dd570, node=0x7fffa00e8ef0) at ../../duchain/contextbuilder.cpp:321
#11 0x00007fffad168658 in KDevelop::AbstractTypeBuilder<Python::Ast, Python::Identifier, Python::ContextBuilder>::supportBuild(Python::Ast*, KDevelop::DUContext*) (context=0x7fffa00f1fb0, node=0x7fffa00e8ef0, this=0x7fffa00dd570) at /usr/include/kdevplatform/language/duchain/builders/abstractcontextbuilder.h:134
#12 0x00007fffad168658 in KDevelop::AbstractTypeBuilder<Python::Ast, Python::Identifier, Python::ContextBuilder>::supportBuild(Python::Ast*, KDevelop::DUContext*) (this=0x7fffa00dd570, node=0x7fffa00e8ef0, context=<optimized out>) at /usr/include/kdevplatform/language/duchain/builders/abstracttypebuilder.h:85
#13 0x00007fffad14f3ad in Python::ContextBuilder::build(KDevelop::IndexedString const&, Python::Ast*, KDevelop::ReferencedTopDUContext) (updateContext=..., node=0x7fffa00e8ef0, url=..., this=0x7fffa00dd570)
    at /usr/include/kdevplatform/language/duchain/builders/abstractcontextbuilder.h:114
#14 0x00007fffad14f3ad in Python::ContextBuilder::build(KDevelop::IndexedString const&, Python::Ast*, KDevelop::ReferencedTopDUContext) (this=this@entry=0x7fffa00dd570, url=..., node=node@entry=0x7fffa00e8ef0, updateContext=...) at ../../duchain/contextbuilder.cpp:76
#15 0x00007fffad159b33 in Python::DeclarationBuilder::build(KDevelop::IndexedString const&, Python::Ast*, KDevelop::ReferencedTopDUContext) (this=this@entry=0x7fffa00dd570, url=..., node=node@entry=0x7fffa00e8ef0, updateContext=...) at ../../duchain/declarationbuilder.cpp:109
#16 0x00007fffad159a67 in Python::DeclarationBuilder::build(KDevelop::IndexedString const&, Python::Ast*, KDevelop::ReferencedTopDUContext) (this=this@entry=0x7fffaea2bac0, url=..., node=0x7fffa00e8ef0, updateContext=...)
    at ../../duchain/declarationbuilder.cpp:102
#17 0x00007fffad816a58 in Python::ParseJob::run(QSharedPointer<ThreadWeaver::JobInterface>, ThreadWeaver::Thread*) (this=0x2291e20, self=..., thread=<optimized out>) at ../pythonparsejob.cpp:147
#18 0x00007fffee10e920 in ThreadWeaver::IdDecorator::run(QSharedPointer<ThreadWeaver::JobInterface>, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#19 0x00007fffee10f060 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#20 0x00007fffee10df3a in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#21 0x00007fffee10d6aa in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#22 0x00007fffef1bf93e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#23 0x00007fffe74d852a in start_thread () at /lib64/libpthread.so.0
#24 0x00007fffee63877d in clone () at /lib64/libc.so.6


Last lines from kdevelop command output:
---- Parsing Succeeded ----
 ====> PARSING ====> parsing file   QUrl( "file:///usr/lib64/python3.4/genericpath.py" )  ; has priority -10007
 ====> AST     ====>     building abstract syntax tree for  "/usr/lib64/python3.4/genericpath.py"
 ====> DUCHAIN ====>     building duchain for "/usr/lib64/python3.4/string.py"
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
 ====> DUCHAIN ====>     rebuilding duchain for "/usr/lib64/python3.4/string.py" (was built before)
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
 ====> DUCHAIN ====>     building duchain for "/usr/lib64/python3.4/genericpath.py"
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
 ====> DUCHAIN ====>     rebuilding duchain for "/usr/lib64/python3.4/genericpath.py" (was built before)
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
Document needs update because of unresolved identifiers:  true
---- Parsing Succeeded ----
 ====> PARSING ====> parsing file   QUrl( "file:///usr/lib64/python3.4/collections/__init__.py" )  ; has priority -10008
 ====> AST     ====>     building abstract syntax tree for  "/usr/lib64/python3.4/collections/__init__.py"
Document needs update because of unresolved identifiers:  true
---- Parsing Succeeded ----
 ====> DUCHAIN ====>     building duchain for "/usr/lib64/python3.4/collections/__init__.py"
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain:  [ !!! ] did not get a typetrack container object when expecting one! Fix code / setup.
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available
kdev.python.duchain: tuple type object is not available

Program received signal SIGSEGV, Segmentation fault.

To me, it seems that the problem happens to be that Helper::getDocumentationFileContext() returns NULL pointer.

Reproducible: Always