Fixed issue with relative paths

src/vai_lab/_import_helper.py

@@ -43,4 +43,25 @@ def rel_to_abs(filename: str) -> str:
             filename = path.normpath(path.join(get_lib_parent_dir(), filename))
         elif filename[0] == "/" or (filename[0].isalpha() and filename[0].isupper()):
             filename = filename
-        return filename
+        return filename
+
+def abs_to_rel(filename: str) -> str:
+        """Checks if path is relative or absolute
+        If absolute, converts path to relative if possible
+        If relative, returns itself
+        """
+        if filename[0] == ".":
+            #Relative path
+            return filename
+        elif filename[0].isalpha() and filename[0] != get_lib_parent_dir()[0]:
+            #Different drive -> Absolute path
+            return filename
+        else:
+            #Same drive not relative
+            _folder = path.relpath(filename, get_lib_parent_dir())
+            if _folder[:2] == '..':
+                # Absolute path
+                return filename
+            else:
+                # Relative path
+                return path.join('.',_folder)

src/vai_lab/utils/plugins/MainPage.py

@@ -6,7 +6,7 @@
 import pandas as pd
 
 from vai_lab.utils.plugins.dataLoader import dataLoader
-from vai_lab._import_helper import get_lib_parent_dir, rel_to_abs
+from vai_lab._import_helper import get_lib_parent_dir, abs_to_rel
 
 _PLUGIN_READABLE_NAMES = {"main": "default",
                           "main page": "alias",
@@ -311,7 +311,7 @@ def start_dataloader(self):
                         # Infers by default, should it be None?
                         data[variable] = pd.read_csv(filename)
                         isVar[i] = 1
-                        self.controller.xml_handler.append_input_data(variable, rel_to_abs(filename))
+                        self.controller.xml_handler.append_input_data(variable, abs_to_rel(filename))
                         if i == 0:
                             self.controller.Data.set(True)
                         if any(isVar[1::2]) and (
@@ -337,7 +337,7 @@ def upload_data_path(self):
                               title='Select a folder',
                               mustexist=True)
         if folder is not None and len(folder) > 0:
-            self.controller.xml_handler.append_input_data('X', rel_to_abs(folder))
+            self.controller.xml_handler.append_input_data('X', abs_to_rel(folder))
 
     def upload_data_folder(self):
         """ Stores the directory containing the data that will be later loaded