Fixes Path_utils

utils/Path_utils.py

@@ -1,18 +1,21 @@
+from operator import attrgetter
 from pathlib import Path
 from os import scandir
 
 image_extensions = [".jpg", ".jpeg", ".png", ".tif", ".tiff"]
 
+
 def get_image_paths(dir_path, image_extensions=image_extensions):
-    dir_path = Path (dir_path)
+    dir_path = Path(dir_path)
 
     result = []
     if dir_path.exists():
-        for x in list(scandir(str(dir_path))):
+        for x in scandir(str(dir_path)):
             if any([x.name.lower().endswith(ext) for ext in image_extensions]):
                 result.append(x.path)
     return sorted(result)
 
+
 def get_image_unique_filestem_paths(dir_path, verbose_print_func=None):
     result = get_image_paths(dir_path)
     result_dup = set()
@@ -22,46 +25,50 @@ def get_image_unique_filestem_paths(dir_path, verbose_print_func=None):
         if f_stem in result_dup:
             result.remove(f)
             if verbose_print_func is not None:
-                verbose_print_func ("Duplicate filenames are not allowed, skipping: %s" % Path(f).name )
+                verbose_print_func("Duplicate filenames are not allowed, skipping: %s" % Path(f).name)
             continue
         result_dup.add(f_stem)
 
     return sorted(result)
-    
+
+
 def get_file_paths(dir_path):
-    dir_path = Path (dir_path)
+    dir_path = Path(dir_path)
 
     result = []
     if dir_path.exists():
-        return [ x.path for x in list(scandir(str(dir_path))) if x.is_file() ]
+        return [x.path for x in scandir(str(dir_path)) if x.is_file()]
     return sorted(result)
-    
-def get_all_dir_names (dir_path):
-    dir_path = Path (dir_path)
+
+
+def get_all_dir_names(dir_path):
+    dir_path = Path(dir_path)
 
     result = []
     if dir_path.exists():
-        return [ x.name for x in list(scandir(str(dir_path))) if x.is_dir() ]
-        
+        return [x.name for x in scandir(str(dir_path)) if x.is_dir()]
+
     return sorted(result)
-    
-def get_all_dir_names_startswith (dir_path, startswith):
-    dir_path = Path (dir_path)
+
+
+def get_all_dir_names_startswith(dir_path, startswith):
+    dir_path = Path(dir_path)
     startswith = startswith.lower()
 
     result = []
     if dir_path.exists():
-        for x in list(scandir(str(dir_path))):
+        for x in scandir(str(dir_path)):
             if x.name.lower().startswith(startswith):
-                result.append ( x.name[len(startswith):] )
+                result.append(x.name[len(startswith):])
     return sorted(result)
 
-def get_first_file_by_stem (dir_path, stem, exts=None):
-    dir_path = Path (dir_path)
+
+def get_first_file_by_stem(dir_path, stem, exts=None):
+    dir_path = Path(dir_path)
     stem = stem.lower()
 
     if dir_path.exists():
-        for x in sorted(list(scandir(str(dir_path)))):
+        for x in sorted(scandir(str(dir_path)), key=attrgetter('name')):
             if not x.is_file():
                 continue
             xp = Path(x.path)
@@ -70,13 +77,15 @@ def get_first_file_by_stem (dir_path, stem, exts=None):
 
     return None
 
-def move_all_files (src_dir_path, dst_dir_path):
+
+def move_all_files(src_dir_path, dst_dir_path):
     paths = get_file_paths(src_dir_path)
     for p in paths:
         p = Path(p)
-        p.rename ( Path(dst_dir_path) / p.name )
-        
-def delete_all_files (dir_path):
+        p.rename(Path(dst_dir_path) / p.name)
+
+
+def delete_all_files(dir_path):
     paths = get_file_paths(dir_path)
     for p in paths:
         p = Path(p)

utils/test/Path_utils.py

@@ -0,0 +1,15 @@
+import unittest
+
+from utils.Path_utils import get_first_file_by_stem
+
+
+class PathUtilsTests(unittest.TestCase):
+    def test_get_first_file_by_stem(self):
+        first_file = get_first_file_by_stem('../..', 'README')
+        self.assertEqual(first_file.stem, 'README')
+        self.assertEqual(first_file.suffix, '.md')
+        self.assertEqual(first_file.name, 'README.md')
+
+
+if __name__ == '__main__':
+    unittest.main()