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   expr_list()

   exec()
   return()
   if()
   for()
   loop()
   nop()

  Output
   print()
   clear()
   debug()

  Math
   abs()
   sign()

   sqr()
   sqrt()

   min()
   max()

   inc()
   dec()

   rand()

   none()
   nan()

   def()
   defnz()

   is_none()
   is_num()
   is_str()
   is_valid()

   bool()

  Rounding
   round()
   roundup()
   floor()
   ceil()
   trunc()
   center()
   centerex()

   s8()
   u8()
   s16()
   u16()
   s32()
   u32()

  Trigonometric
   pi()
   sin()
   cos()
   tan()
   asin()
   acos()
   atan()
   atan2()

   rad2deg()
   deg2rad()

  Logarithmic
   e()
   pow()
   exp()
   exp10()
   exp2()
   log()
   log10()
   log2()

  Bitwise
   bit()
   not()
   and()
   or()
   xor()
   nand()
   nor()
   xnor()
   shl()
   shr()

  Logical
   lnot()
   land()
   lor()
   lxor()
   lnand()
   lnor()
   lxnor()

  Relational
   eq()
   ne()
   gt()
   lt()
   ge()
   le()

  Date & Time
   date()
   datetime()
   year()
   month()
   day()
   hour()
   minute()
   second()
   millisec()

  Strings
   str()
   strlen()
   padleft()
   padright()
   hex()
   bin()
   chr()
   match()

  Parameters
   param_get()
   param_set()
   param_remove()
   param_persistent()

  Coordinates & Units
   to_motor()
   to_motor_xy()
   to_motor_uv()

   to_work()
   to_work_xy()
   to_work_uv()

   mm_to_unit()
   unit_to_mm()

   mm_to_setunit()
   setunit_to_mm()

   unit_to_setunit()
   setunit_to_unit()

   setunit()

  Commands
   estop()
   stop()
   pause()
   start()

   open()
   close()

   settings()
   exit()
   exitforce()

   output()
   output_pwm()
   output_rc()

   mist()
   flood()
   spindle()

   extout1()
   extout2()

   jog()
   jog_axis()
   jog_stop()

   speed_override()
   spindle_override()

   thc()

   cmd_list()
   cmd_count()

   cmd_get_id()
   cmd_get_name()
   cmd_get_displayname()

   cmd_is_enabled()
   cmd_is_checked()

   cmd_exec()

   open_file()
   open_code()
   start_file()
   start_code()
   test_file()
   test_code()

   run()

   py_list()
   py()
   py_term()
   py_msg()

  UI
   is_visible()
   show()
   hide()

   set_status()
   set_progress()

   is_ui_ready()

  Message
   msg()
   msgerr()

   msg_show()

   msg_count()
   msg_is_active()

   msg_click_ok()
   msg_click_cancel()

   bubble()

  Dialog
   dlg_file_open()
   dlg_file_save()

   dlg_new()
   dlg_init()
   dlg_update()
   dlg_clear()

   dlg_show()
   dlg_abort()

   dlg_is_valid()
   dlg_keep_open()
   dlg_callback()

   dlg_modal()
   dlg_set_resizable()
   dlg_set_pos()
   dlg_set_size()
   dlg_set_btn()
   dlg_set_name()
   dlg_set_color()

   dlg_add_separator()
   dlg_add_image()
   dlg_add_label()
   dlg_add_checkbox()
   dlg_add_num_input()
   dlg_add_txt_input()
   dlg_add_dropbox()
   dlg_add_button()

   dlg_comp_pos()
   dlg_comp_size()
   dlg_comp_color()
   dlg_comp_font()
   dlg_comp_name()
   dlg_comp_value()
   dlg_comp_callback()

   dlg_draw_line()
   dlg_draw_arrow()
   dlg_draw_circle()
   dlg_draw_rect()

   dlg_click_apply()
   dlg_click_ok()
   dlg_click_close()

   dlg_has_btn_apply()
   dlg_has_btn_ok()
   dlg_has_btn_close()

  Points
   points_count()
   points_clear()
   points_add()
   points_get()
   points_set()
   points_delete()
   points_load()
   points_save()

  File
   file_delete()
   file_open()
   file_close()
   file_read()
   file_append()
   file_flush()

  Array
   array_new()
   array_delete()
   array_isvalid()
   array_size()
   array_clear()
   array_resize()
   array_insert()
   array_remove()
   array_copy()
   array_printstring()
   array_printdata()
   array_setstring()
   array_getstring()
   array_setdata()
   array_setdata16()
   array_setdata32()
   array_setdata64()
   array_setdataflt32()
   array_setdataflt64()
   array_getdata()
   array_getdata16()
   array_getdata32()
   array_getdata64()
   array_getdataflt32()
   array_getdataflt64()
   array_crc16()
   array_crc32()

  Serial
   serial_list()
   serial_info()
   serial_open()
   serial_close()
   serial_config()
   serial_write()
   serial_writedata()
   serial_writedata16()
   serial_writedata32()
   serial_writearray()
   serial_writeflush()
   serial_read()
   serial_readdata()
   serial_readarray()
   serial_readflush()
   serial_addlistener()
   serial_remlistener()

  USB
   usb_list()
   usb_info()
   usb_open()
   usb_close()
   usb_read()
   usb_readdata()
   usb_readarray()
   usb_write()
   usb_writedata()
   usb_writearray()
   usb_addlistener()
   usb_remlistener()

  Hash
   crc16()
   crc32()
   sha256()
   sha256_f()
   md5()
   md5_f()

  Crypt
   aes256_encrypt()
   aes256_encrypt_f()
   aes256_decrypt()
   aes256_decrypt_f()

  Colors
   rgb_to_hue()
   rgb_to_saturation()
   rgb_to_lightness()
   rgb_to_name()

  Camera
   cam_grab()
   cam_color()
   cam_rect()

  Sound
   beep()
   siren()
   sound_load()
   sound_unload()
   sound_play()
   sound_stop()
   sound_is_playing()

  MIDI
   midi_note_on()
   midi_note_off()
   midi_ctrl()
   midi_prog()
   midi_play()
   midi_stop()
   midi_is_playing()

   midiin_channel()
   midiin_prog()
   midiin_note()
   midiin_ctrl()

  Misc
   sleep()

   url()
   rubik()

  PoKeys
   pk_digital()
   pk_analog()

Operators

Events

expr:functions:func-py_msg

py_msg()

Sends a message to a running Python script.

Syntax

py_msg(message, data)

Parameters

Parameter Type Description
message String The message or command to send to the Python script.
data Any The data to send along with the message.

Return Value

  • The response from the Python script.
  • `None` if the Python environment is not running or an error occurs.

Examples

Send a message with data to a Python script

py_msg("update_status", "Running");

Send a numerical command

py_msg("set_speed", 1200);

Send a numerical command

py_msg("OpenCV", 0);

See also

expr/functions/func-py_msg.txt · Last modified: by andrej

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