</span><span class='id identifier rubyid_popen3'>popen3</span><span class='lparen'>(</span><span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid__stdin'>_stdin</span><span class='comma'>,</span><span class='id identifier rubyid_stdout'>stdout</span><span class='comma'>,</span><span class='id identifier rubyid_stderr'>stderr</span><span class='comma'>,</span><span class='i