Document the functions

flake.lock

@@ -1,41 +0,0 @@
-{
-  "nodes": {
-    "flake-utils": {
-      "locked": {
-        "lastModified": 1653893745,
-        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1654845941,
-        "narHash": "sha256-uXulXu4BQ9ch1ItV0FlL2Ns8X83m6unT5h/0X//VRLQ=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "7b3e907a6fef935794b5049c2c57c519853deb90",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "root": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

flake.nix

@@ -1,14 +0,0 @@
-{
-  description = "";
-
-  inputs.flake-utils.url = "github:numtide/flake-utils";
-
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem
-      (system:
-        let pkgs = nixpkgs.legacyPackages.${system}; in
-        {
-          devShell = import ./shell.nix { inherit pkgs; };
-        }
-      );
-}

mouse/__init__.py

@@ -166,6 +166,10 @@ def on_button(callback, args=(), buttons=(LEFT, MIDDLE, RIGHT, X, X2), types=(UP
                 callback(*args)
     _listener.add_handler(handler)
     return handler
+    
+def on_pressed(callback, args=()):
+    """ Invokes `callback` with `args` when the left button is pressed. """
+    return on_button(callback, args, [LEFT], [DOWN])
 
 def on_click(callback, args=()):
     """ Invokes `callback` with `args` when the left button is clicked. """

mouse/_nixcommon.py

@@ -20,6 +20,8 @@ EV_REL = 0x02
 EV_ABS = 0x03
 EV_MSC = 0x04
 
+INVALID_ARGUMENT_ERRNO = 22
+
 def make_uinput():
     import fcntl, struct
 
@@ -29,8 +31,12 @@ def make_uinput():
     fcntl.ioctl(uinput, UI_SET_EVBIT, EV_KEY)
 
     UI_SET_KEYBIT = 0x40045565
-    for i in range(256):
-        fcntl.ioctl(uinput, UI_SET_KEYBIT, i)
+    try:
+        for i in range(0x300):
+            fcntl.ioctl(uinput, UI_SET_KEYBIT, i)
+    except OSError as e:
+        if e.errno != INVALID_ARGUMENT_ERRNO:
+            raise e
 
     BUS_USB = 0x03
     uinput_user_dev = "80sHHHHi64i64i64i64i"

proarbeit.py

@@ -3,22 +3,25 @@ from secrets import randbelow
 from time import sleep
 
 
-def erratic_movement(screen_width=800, screen_height=600):
+def erratic_movement(screen_width, screen_height):
     """
-    Moves the cursor to a random position with the screen's width and height as an upper bound
+    Moves the cursor to a random position with the screen's
+    width and height as an upper bound
     """
     move(
-        randbelow(screen_width),
-        randbelow(screen_height),
+        randbelow(screen_width), randbelow(screen_height),
     )
 
 
 def main():
     """
-    Calls the movement function in an infinite loop, with a random delay between each call
+    Calls the movement function in an infinite loop,
+    with a random delay between each call
     """
+    screen_width = 800
+    screen_height = 600
     while True:
-        erratic_movement()
+        erratic_movement(screen_width, screen_height)
         sleep(randbelow(90))