[SOLVED] [Windows] Converting filename to UTF8?

[snippsat]

Keep it uft-8 all the way,make sure editor don't mess it when save stuff.
Can test files with chardetect.

G:\div_code\answer
λ chardetect pla.kml
pla.kml: utf-8 with confidence 0.99

Example:

from bs4 import BeautifulSoup

"""
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
 <Document>
    <Placemark>
     Μῆνιν ἄειδε
    </Placemark>
    <Placemark>
     異體字字
    </Placemark>
 </Document>
</kml>
"""

soup = BeautifulSoup(open('pla.kml', encoding='utf-8'), 'xml')
mark = soup.find_all('Placemark')
print(mark)

with open('pla_out.kml', "w", encoding='utf-8') as fp:
    fp.write(soup.prettify(formatter=None))

Output:
[<Placemark>Μῆνιν ἄειδε</Placemark>, <Placemark>異體字字</Placemark>]

pla_out.kml

Output:
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
 <Document>
    <Placemark>
     Μῆνιν ἄειδε
    </Placemark>
    <Placemark>
     異體字字
    </Placemark>
 </Document>
</kml>