Moved tube example canvas out of __name__ check
Moved tube example canvas out of __name__ check

julienr/vispy,Eric89GXL/vispy,kkuunnddaannkk/vispy,julienr/vispy,michaelaye/vispy,jay3sh/vispy,sh4wn/vispy,dchilds7/Deysha-Star-Formation,ghisvail/vispy,michaelaye/vispy,kkuunnddaannkk/vispy,srinathv/vispy,julienr/vispy,jdreaver/vispy,Eric89GXL/vispy,jdreaver/vispy,ghisvail/vispy,kkuunnddaannkk/vispy,QuLogic/vispy,sh4wn/vispy,dchilds7/Deysha-Star-Formation,hronoses/vispy,QuLogic/vispy,hronoses/vispy,QuLogic/vispy,ghisvail/vispy,inclement/vispy,Eric89GXL/vispy,RebeccaWPerry/vispy,hronoses/vispy,dchilds7/Deysha-Star-Formation,sbtlaarzc/vispy,sh4wn/vispy,drufat/vispy,jay3sh/vispy,jdreaver/vispy,srinathv/vispy,sbtlaarzc/vispy,sbtlaarzc/vispy,bollu/vispy,RebeccaWPerry/vispy,drufat/vispy,inclement/vispy,inclement/vispy,srinathv/vispy,bollu/vispy,michaelaye/vispy,drufat/vispy,RebeccaWPerry/vispy,jay3sh/vispy,bollu/vispy