End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

DEBUGGER__.stdout=

stdout=(s)

# File tmp/rubies/ruby-3.0.5/lib/debug.rb, line 914
def stdout=(s)
  @stdout = s
end

Sets the IO used as stdout. Defaults to STDOUT

See also .stdout .suspend .set_trace .thread_list