First Cython3 changes; work in progress

setup.cfg

@@ -8,6 +8,6 @@ install_requires =
     numpy >= 1.26.3
     scipy >= 1.11.4
     cython >= 3.0.7
-    nose >= 1.3.7
+    nose-py3 >= 1.6.3
     matplotlib > 3
     assimulo >= 3.5.0

setup.py

@@ -73,7 +73,7 @@
 -------------
 - `FMI Library (at least 2.0.1) <https://github.com/modelon-community/fmi-library>`_
 - `Python-headers (usually included on Windows, python-dev on Ubuntu)`_
-- `Python 3.7 or newer`_
+- `Python 3.11 or newer`_
 - Python package dependencies are listed in file setup.cfg.
 
 Optional
@@ -90,9 +90,10 @@
 
 copy_args = sys.argv[1:]
 
-if os.getenv("FMIL_HOME"): #Check for if there exists and environment variable that specifies FMIL
-    incdirs = os.path.join(os.getenv("FMIL_HOME"), 'include')
-    libdirs = os.path.join(os.getenv("FMIL_HOME"), 'lib')
+fmil_home = os.getenv("FMIL_HOME")
+if fmil_home: #Check for environment variable that specifies FMIL
+    incdirs = os.path.join(fmil_home, 'include')
+    libdirs = os.path.join(fmil_home, 'lib')
 else:
     incdirs = ""
     libdirs = ""
@@ -214,29 +215,35 @@ def check_extensions():
     incl_path = [".", "src", os.path.join("src", "pyfmi")]
     #FMI PYX
     ext_list += cythonize([os.path.join("src", "pyfmi", "fmi.pyx")], 
-                    include_path = incl_path)
+                    include_path = incl_path,
+                    compiler_directives={'language_level' : "3str"})
 
     #FMI UTIL
     ext_list += cythonize([os.path.join("src", "pyfmi", "fmi_util.pyx")], 
-                    include_path = incl_path)
+                    include_path = incl_path,
+                    compiler_directives={'language_level' : "3str"})
 
     #FMI Extended PYX
     ext_list += cythonize([os.path.join("src", "pyfmi", "fmi_extended.pyx")], 
-                    include_path = incl_path)
+                    include_path = incl_path,
+                    compiler_directives={'language_level' : "3str"})
 
     #FMI Coupled PYX
     ext_list += cythonize([os.path.join("src", "pyfmi", "fmi_coupled.pyx")], 
-                    include_path = incl_path)
+                    include_path = incl_path,
+                    compiler_directives={'language_level' : "3str"})
 
     #Simulation interface PYX
     ext_list += cythonize([os.path.join("src", "pyfmi", "simulation", "assimulo_interface.pyx")], 
-                    include_path = incl_path)
+                    include_path = incl_path,
+                    compiler_directives={'language_level' : "3str"})
 
     #MASTER PYX
     compile_time_env = {'WITH_OPENMP': with_openmp}
     ext_list += cythonize([os.path.join("src", "pyfmi", "master.pyx")], 
                     include_path = incl_path, 
-                    compile_time_env=compile_time_env)
+                    compile_time_env=compile_time_env,
+                    compiler_directives={'language_level' : "3str"})
 
     for i in range(len(ext_list)):
 

src/common/io.py

@@ -370,20 +370,20 @@ class ResultWriter():
     Base class for writing results to file.
     """
 
-    def write_header():
+    def write_header(self):
         """
         The header is intended to be used for writing general information about
         the model. This is intended to be called once.
         """
         pass
 
-    def write_point():
+    def write_point(self):
         """
         This method does the writing of the actual result.
         """
         pass
 
-    def write_finalize():
+    def write_finalize(self):
         """
         The finalize method can be used to for instance close the file.
         """

src/pyfmi/fmi.pxd

@@ -162,6 +162,7 @@ cdef class FMUModelME1(FMUModelBase):
     cdef public object _preinit_nominal_continuous_states
 
 cdef class __ForTestingFMUModelME1(FMUModelME1):
+    cdef int __get_nominal_continuous_states(self, FMIL.fmi1_real_t* xnominal, size_t nx)
     cpdef set_allocated_fmu(self, int value)
 
 cdef class FMUModelBase2(ModelBase):
@@ -275,4 +276,10 @@ cdef class WorkerClass2:
     cpdef verify_dimensions(self, int dim)
 
 cdef class __ForTestingFMUModelME2(FMUModelME2):
+    cdef int __get_real(self, FMIL.fmi2_value_reference_t* vrefs, size_t size, FMIL.fmi2_real_t* values)
+    cdef int __set_real(self, FMIL.fmi2_value_reference_t* vrefs, FMIL.fmi2_real_t* values, size_t size)
+    cdef int _get_real(self, FMIL.fmi2_value_reference_t[:] valueref, size_t size, FMIL.fmi2_real_t[:] values)
+    cdef int _get_integer(self, FMIL.fmi2_value_reference_t[:] valueref, size_t size, FMIL.fmi2_integer_t[:] values)
+    cdef int _get_boolean(self, FMIL.fmi2_value_reference_t[:] valueref, size_t size, FMIL.fmi2_real_t[:] values)
+    cdef int __get_nominal_continuous_states(self, FMIL.fmi2_real_t* xnominal, size_t nx)
     cpdef set_initialized_fmu(self, int value)