text: # hex
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">0xCAFE_F00D</warning>
  
  # oct
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">0o1_23</warning>
  <error descr="Python version 3.6 does not support this syntax. It requires '0o' prefix for octal literals"><warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals"><warning descr="Python versions 3.5, 3.7, 3.8, 3.9 do not support this syntax. It requires '0o' prefix for octal literals">01_23</warning></warning></error>
  
  # bin
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">0b_0011_1111_0100_1110</warning>
  
  # dec
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_000_000</warning>
  
  # pointfloat
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.</warning>
  
  # exponentfloat
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23e1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23E1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.e1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.E1_2</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23e+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23E+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.e+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.E+1_2</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23e-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23E-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.e-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.E-1_2</warning>
  
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23e1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23E1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00e1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00E1_2</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23e+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23E+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00e+1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00E+1_2</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23e-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_0000_23E-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00e-1_2</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00E-1_2</warning>
  
  # imag
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23j</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23J</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23e1_2j</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_00.00_23e1_2J</warning>
  
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_000_000j</warning>
  <warning descr="Python versions 2.6, 2.7, 3.5 do not support underscores in numeric literals">10_000_000J</warning>