Windows seems to require this, otherwise this happens:
Traceback (most recent call last):
File "tests/update.TestCase", line 737, in test_translate_per_build_anti_features
apps = fdroidserver.metadata.read_metadata(xref=True)
File "C:\Users\travis\build\fdroidtravis\fdroidserver\fdroidserver\metadata.py", line 813, in read_metadata
app = parse_metadata(metadatapath, appid in check_vcs, refresh)
File "C:\Users\travis\build\fdroidtravis\fdroidserver\fdroidserver\metadata.py", line 1023, in parse_metadata
parse_yaml_metadata(mf, app)
File "C:\Users\travis\build\fdroidtravis\fdroidserver\fdroidserver\metadata.py", line 1073, in parse_yaml_metadata
yamldata = yaml.safe_load(mf)
File "C:\python37\lib\site-packages\yaml\__init__.py", line 162, in safe_load
return load(stream, SafeLoader)
File "C:\python37\lib\site-packages\yaml\__init__.py", line 112, in load
loader = Loader(stream)
File "C:\python37\lib\site-packages\yaml\loader.py", line 34, in __init__
Reader.__init__(self, stream)
File "C:\python37\lib\site-packages\yaml\reader.py", line 85, in __init__
self.determine_encoding()
File "C:\python37\lib\site-packages\yaml\reader.py", line 124, in determine_encoding
self.update_raw()
File "C:\python37\lib\site-packages\yaml\reader.py", line 178, in update_raw
data = self.stream.read(size)
File "C:\python37\lib\encodings\cp1252.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 37: character maps to <undefined>
