def _display_stdin_widget(delay_millis=0):
"""Context manager that displays a stdin UI widget and hides it upon exit.
Args:
delay_millis: Duration (in milliseconds) to delay showing the widget within
the UI.
Yields:
A callback that can be invoked with a single argument indicating whether
echo is enabled.
"""
shell = _ipython.get_ipython()
display_args = ['cell_display_stdin', {'delayMillis': delay_millis}]
_message.blocking_request(*display_args, parent=shell.parent_header)
def echo_updater(new_echo_status):
# Note: Updating the echo status uses colab_request / colab_reply on the
# stdin socket. Input provided by the user also sends messages on this
# socket. If user input is provided while the blocking_request call is still
# waiting for a colab_reply, the input will be dropped per
# https://github.com/googlecolab/colabtools/blob/56e4dbec7c4fa09fad51b60feb5c786c69d688c6/google/colab/_message.py#L100.
update_args = ['cell_update_stdin', {'echo': new_echo_status}]
_message.blocking_request(*update_args, parent=shell.parent_header)
yield echo_updater
hide_args = ['cell_remove_stdin', {}]
_message.blocking_request(*hide_args, parent=shell.parent_header)
def _display_stdin_widget(delay_millis=0):
"""Context manager that displays a stdin UI widget and hides it upon exit."""
shell = _ipython.get_ipython()
display_args = ['cell_display_stdin', {'delayMillis': delay_millis}]
_message.send_request(*display_args, parent=shell.parent_header)
yield
hide_args = ['cell_remove_stdin', {}]
_message.send_request(*hide_args, parent=shell.parent_header)
def initialize():
ip = ipython.get_ipython()
if ip:
_CustomErrorHandlers(ip)
