work around to not use the __file__ constant

spotpy/examples/hymod_unix/hymod_cython/hymod.pyx

@@ -89,7 +89,7 @@ def excess(x_loss,cmax,bexp,Pval,PETval):
     return ER1,ER2,xn
 
 
-cdef public void hymod_run():
+cdef public void hymod_run(owd):
     if not hasattr(sys, 'argv'):
         sys.argv  = ['']
     if len(sys.argv) != 6:
@@ -102,7 +102,9 @@ cdef public void hymod_run():
         x = sys.argv
         x.pop(0)
 
-    owd = os.path.dirname(os.path.realpath(__file__))
+    # try to use path provided from cpp
+    # owd = os.path.dirname(os.path.realpath(__file__))
+
     hymod_path = owd + os.sep + 'hymod_input.csv'
     Precip, PET = [], []
 

spotpy/examples/hymod_unix/hymod_cython/main_hymod.cpp

@@ -1,6 +1,7 @@
 #include <iostream>
 #include "Python.h"
 #include "hymod.h"
+#include <unistd.h>
 
 int main(int argc, char *argv[])
 {
@@ -27,9 +28,22 @@ int main(int argc, char *argv[])
         Py_Finalize();
         return -1; //error
     }
+
+    /*const std::filesystem::path owd;
+    std::filesystem::current_path(&owd);
 
-    hymod_run();
+    getcwd(cwd, sizeof(cwd))*/
+
+    char cwd[256];
+    if (getcwd(cwd, sizeof(cwd)) == NULL) 
+    {
+        std::cout << "Error in getcwd" << std::endl;
+        Py_Finalize();
+        return -2; //error
+    }
 
+    PyObject *py_cwd = Py_BuildValue("s", cwd);
+    hymod_run(py_cwd);
 
     Py_Finalize(); //Needed!