Windows doesnt handle bitops ⊻
Julia includes

```py
pyjl/clike.py:jl_symbols = {ast.BitXor: "⊻"}
```

This transform fails on Windows CI:

```
D:\a\py2many\py2many\tests\cases\bitops.py: UnicodeEncodeError: 'charmap' codec can't encode character '\u22bb' in position 203: character maps to <undefined>
```

backtrace

```
D:\a\py2many\py2many\py2many\cli.py:717: in main
    rv = _process_one(settings, source, outdir, args, env)
D:\a\py2many\py2many\py2many\cli.py:474: in _process_one
    f.write(result[0][0])
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <encodings.cp1252.IncrementalEncoder object at 0x000001B771813EB0>
input = '\r\nfunction main_func()\r\nands::Array{Bool} = []\r\nors::Array{Bool} = []\r\nxors::Array{Bool} = []\r\nfor a in [fa...e, true, false])\r\nprintln(join(["OK"], " "));\r\nend\r\n\r\nfunction main()\r\nmain_func();\r\nend\r\n\r\nmain()\r\n'
final = False
    def encode(self, input, final=False):
>       return codecs.charmap_encode(input,self.errors,encoding_table)[0]
E       UnicodeEncodeError: 'charmap' codec can't encode character '\u22bb' in position 203: character maps to <undefined>
```