Fix message, adds documentation

- fixes consistency of '__' in inports in the wallpapers sub modules

pokemonterminal/scripter.py

@@ -43,7 +43,7 @@ def change_wallpaper(image_file_path):
                 print("Invalid number, try again!")
         target = providers[inp]
     elif len(providers) <= 0:
-        print("Your desktop environment isn't supported by this time.")
+        print("Your desktop environment isn't supported at this time.")
         sys.exit()
     else:
         target = providers[0]

pokemonterminal/wallpaper/__init__.py

@@ -11,6 +11,11 @@ def _is_adapter(member) -> bool:
 
 
 def _get_adapter_classes() -> [WallpaperProvider]:
+    """
+    This methods reads all the modules in the adapters folder searching for
+    all the implementing wallpaper adapter classes
+    thanks for/adapted from https://github.com/cclauss/adapter_pattern/
+    """
     dirname = os.path.join(os.path.dirname(
         os.path.abspath(__file__)), 'adapters')
     adapter_classes = []

pokemonterminal/wallpaper/adapters/darwin.py

@@ -1,9 +1,9 @@
-from . import WallpaperProvider as _WProv
+from . import WallpaperProvider as __WProv
 import subprocess as __sp
 import sys as __sys
 
 
-class DarwinProvider(_WProv):
+class DarwinProvider(__WProv):
     __osa_script_fmt = """tell application "System Events"
     \ttell current desktop
     \t\tset picture to "{}"

pokemonterminal/wallpaper/adapters/gnome.py

@@ -1,14 +1,14 @@
-from . import WallpaperProvider as _WProv
-import os as _os
+from . import WallpaperProvider as __WProv
+import os as __os
 
 
-class GnomeProvider(_WProv):
+class GnomeProvider(__WProv):
     def change_wallpaper(path: str) -> None:
-        _os.system('gsettings set org.gnome.desktop.background ' +
-                   f'picture-uri "file://{path}"')
+        __os.system('gsettings set org.gnome.desktop.background ' +
+                    f'picture-uri "file://{path}"')
 
     def is_compatible() -> bool:
-        return "gnome" in _os.environ.get("GDMSESSION")
+        return "gnome" in __os.environ.get("GDMSESSION")
 
     def __str__():
         return "GNOME Shell Desktop"