Python keyboard keys list

class Keyboard

The Keyboard class is used to collect keyboard responses. You generally create a Keyboard object with the Keyboard() factory function, as described in the section Creating a Keyboard.

# Wait for a 'z' or 'x' key with a timeout of 3000 ms my_keyboard = Keyboard(keylist=['z', 'x'], timeout=3000) start_time = clock.time() key, end_time = my_keyboard.get_key() var.response = key var.response_time = end_time - start_time 

Things to know

Creating a Keyboard

You generally create a Keyboard with the Keyboard() factory function:

Optionally, you can pass Response keywords to Keyboard() to set the default behavior:

my_keyboard = Keyboard(timeout=2000) 

Key names

• Key names may differ between backends.
• Keys can be identified either by character or name, and are case-insentive. For example:
• The key ‘a’ is represented by ‘a’ and ‘A’
• The up arrow is represented by ‘up’ and ‘UP’
• The ‘/’ key is represented by ‘/’, ‘slash’, and ‘SLASH’
• The spacebar is represented by ‘space’ and ‘SPACE’
• To find out the name of key, you can:
• Click on the ‘list available keys’ button of the keyboard_response item.
• Collect a key press with a keyboard_response item, and display the key name through a feedback item with the text ‘You pressed [response]’ in it.

Response keywords

Functions that accept **resp_args take the following keyword arguments:

• timeout specifies a timeout value in milliseconds, or is set to None to disable the timeout.
• keylist specifies a list of keys that are accepted, or is set to None accept all keys.

# Get a left or right arrow press with a timeout of 3000 ms my_keyboard = Keyboard() key, time = my_keyboard.get_key(keylist=[u'left', u'right'], timeout=3000) 

Response keywords only affect the current operation (except when passed to Python keyboard keys list[init]). To change the behavior for all subsequent operations, set the response properties directly:

# Get two key A or B presses with a 5000 ms timeout my_keyboard = Keyboard() my_keyboard.keylist = [u'a', u'b'] my_keyboard.timeout = 5000 key1, time1 = my_keyboard.get_key() key2, time2 = my_keyboard.get_key() 

Or pass the response options to Python keyboard keys list[init]:

# Get two key A or B presses with a 5000 ms timeout my_keyboard = Keyboard(keylist=[u'a', u'b'], timeout=5000) key1, time1 = my_keyboard.get_key() key2, time2 = my_keyboard.get_key() 

function Keyboard.flush()

Clears all pending keyboard input, not limited to the keyboard.

True if a key had been pressed (i.e., if there was something to flush) and False otherwise.

function Keyboard.get_key(**resp_args)

Collects a single key press.

my_keyboard = Keyboard() response, timestamp = my_keyboard.get_key(timeout=5000) if response is None: print(u'A timeout occurred!') 

Keyword dict:

• **resp_args : Optional response keywords ( timeout and keylist ) that will be used for this call to Keyboard.get_key()`. This does not affect subsequent operations.

A (key, timestamp) tuple. key is None if a timeout occurs.

function Keyboard.get_key_release(**resp_args)

Collects a single key release.

Important: This function currently assumes a QWERTY keyboard layout (unlike Keyboard.get_key() ). This means that the returned key may be incorrect on non-QWERTY keyboard layouts. In addition, this function is not implemented for the psycho backend.

my_keyboard = Keyboard() response, timestamp = my_keyboard.get_key_release(timeout=5000) if response is None: print(u'A timeout occurred!') 

Keyword dict:

• **resp_args : Optional response keywords ( timeout and keylist ) that will be used for this call to Keyboard.get_key_release() . This does not affect subsequent operations.

A (key, timestamp) tuple. key is None if a timeout occurs.

function Keyboard.get_mods()

Returns a list of keyboard moderators (e.g., shift, alt, etc.) that are currently pressed.

my_keyboard = Keyboard() moderators = my_keyboard.get_mods() if u'shift' in moderators: print(u'The shift-key is down!') 

A list of keyboard moderators. An empty list is returned if no moderators are pressed.

function Keyboard.show_virtual_keyboard(visible=True)

Shows or hides a virtual keyboard if this is supported by the back-end. This function is only necessary if you want the virtual keyboard to remain visible while collecting multicharacter responses. Otherwise, Keyboard.get_key() will implicitly show and hide the keyboard for a single-character response.

This function does nothing for back-ends that do not support virtual keyboards.

my_keyboard = Keyboard() my_keyboard.show_virtual_keyboard(True) response1, timestamp2 = my_keyboard.get_key() response2, timestamp2 = my_keyboard.get_key() my_keyboard.show_virtual_keyboard(False) 

• visible — True if the keyboard should be shown, False otherwise.
  • Type: bool
  • Default: True

  Supported by Supported by

  Источник

  Tkinter 8.5 reference: a GUI for Python

  The detail part of an event pattern for a KeyPress or KeyRelease event specifies which key you’re binding. (See the Any modifier, above, if you want to get all keypresses or key releases).

  The table below shows several different ways to name keys. See Section 54.6, “Writing your handler: The Event class”, below, for more information on Event objects, whose attributes will describe keys in these same ways.

  • The .keysym column shows the “key symbol”, a string name for the key. This corresponds to the .keysym attribute of the Event object.
  • The .keycode column is the “key code.” This identifies which key was pressed, but the code does not reflect the state of various modifiers like the shift and control keys and the NumLock key. So, for example, both a and A have the same key code.
  • The .keysym_num column shows a numeric code equivalent to the key symbol. Unlike .keycode , these codes are different for different modifiers. For example, the digit 2 on the numeric keypad (key symbol KP_2 ) and the down arrow on the numeric keypad (key symbol KP_Down ) have the same key code (88), but different .keysym_num values (65433 and 65458, respectively).
  • The “Key” column shows the text you will usually find on the physical key, such as tab .

  There are many more key names for international character sets. This table shows only the “Latin-1” set for the usual USA-type 101-key keyboard. For the currently supported set, see the manual page for Tk keysym values.

  .keysym	.keycode	.keysym_num	Key
  Alt_L	64	65513	The left-hand alt key
  Alt_R	113	65514	The right-hand alt key
  BackSpace	22	65288	backspace
  Cancel	110	65387	break
  Caps_Lock	66	65549	CapsLock
  Control_L	37	65507	The left-hand control key
  Control_R	109	65508	The right-hand control key
  Delete	107	65535	Delete
  Down	104	65364	↓
  End	103	65367	end
  Escape	9	65307	esc
  Execute	111	65378	SysReq
  F1	67	65470	Function key F1
  F2	68	65471	Function key F2
  Fi	66+i	65469+i	Function key F i
  F12	96	65481	Function key F12
  Home	97	65360	home
  Insert	106	65379	insert
  Left	100	65361	←
  Linefeed	54	106	Linefeed ( control-J )
  KP_0	90	65438	0 on the keypad
  KP_1	87	65436	1 on the keypad
  KP_2	88	65433	2 on the keypad
  KP_3	89	65435	3 on the keypad
  KP_4	83	65430	4 on the keypad
  KP_5	84	65437	5 on the keypad
  KP_6	85	65432	6 on the keypad
  KP_7	79	65429	7 on the keypad
  KP_8	80	65431	8 on the keypad
  KP_9	81	65434	9 on the keypad
  KP_Add	86	65451	+ on the keypad
  KP_Begin	84	65437	The center key (same key as 5) on the keypad
  KP_Decimal	91	65439	Decimal ( . ) on the keypad
  KP_Delete	91	65439	delete on the keypad
  KP_Divide	112	65455	/ on the keypad
  KP_Down	88	65433	↓ on the keypad
  KP_End	87	65436	end on the keypad
  KP_Enter	108	65421	enter on the keypad
  KP_Home	79	65429	home on the keypad
  KP_Insert	90	65438	insert on the keypad
  KP_Left	83	65430	← on the keypad
  KP_Multiply	63	65450	× on the keypad
  KP_Next	89	65435	PageDown on the keypad
  KP_Prior	81	65434	PageUp on the keypad
  KP_Right	85	65432	→ on the keypad
  KP_Subtract	82	65453	— on the keypad
  KP_Up	80	65431	↑ on the keypad
  Next	105	65366	PageDown
  Num_Lock	77	65407	NumLock
  Pause	110	65299	pause
  Print	111	65377	PrintScrn
  Prior	99	65365	PageUp
  Return	36	65293	The enter key ( control-M ). The name Enter refers to a mouse-related event, not a keypress; see Section 54, “Events”
  Right	102	65363	→
  Scroll_Lock	78	65300	ScrollLock
  Shift_L	50	65505	The left-hand shift key
  Shift_R	62	65506	The right-hand shift key
  Tab	23	65289	The tab key
  Up	98	65362	↑

  Источник

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