Funziona ma crasha con altri device

libbeepz_test/test.py

@@ -3,12 +3,43 @@ Created on 1 ott 2019
 
 @author: Emanuele Trabattoni
 '''
-from evdev import InputDevice
+
+from evdev import InputDevice, ecodes, categorize
 from select import select
 
 dev = InputDevice('/dev/input/by-id/usb-0581_0106-event-kbd')
+#dev = InputDevice('/dev/input/by-id/usb-Chicony_USB_Keyboard-event-kbd')
 dev.grab()
+
+char_map = {
+    458782: 1,
+    458783: 2,
+    458784: 3,
+    458785: 4,
+    458786: 5,
+    458787: 6,
+    458788: 7,
+    458789: 8,
+    458790: 9,
+    458791: 0,
+    458792: "Invio"
+}
+def get_numero(dev):
+    stringa = ""
+    last = None
     while True:
         r,w,x = select([dev], [], [])
         for event in dev.read():
-       print(event)
+            if event.code == 4 and event.type==4:
+                if last is None:
+                    last = char_map[event.value]
+                    if last != "Invio":
+                        stringa += str(last)
+                    else:
+                        yield stringa
+                        stringa = ""
+                else:
+                    last = None
+
+for x in get_numero(dev):
+    print(x[0:12])

poetry.lock

@@ -0,0 +1,14 @@
+[[package]]
+category = "main"
+description = "Bindings to the Linux input handling subsystem"
+name = "evdev"
+optional = false
+python-versions = "*"
+version = "1.2.0"
+
+[metadata]
+content-hash = "ca795258e78a1fd6410b3cbde59ffd58d74ce4734cabb0ea7fc7574961c75ab9"
+python-versions = "^3.7"
+
+[metadata.hashes]
+evdev = ["b03f5e1be5b4a5327494a981b831d251a142b09e8778eda1a8b53eba91100166"]

pyproject.toml

@@ -0,0 +1,15 @@
+[tool.poetry]
+name = "libbeepz"
+version = "0.1.0"
+description = ""
+authors = ["Emanuele Trabattoni"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+evdev = "^1.2"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"