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19 lines
343 B

try:
import uio as io
except:
import io
try:
io.IOBase
except AttributeError:
print('SKIP')
raise SystemExit
class MyIO(io.IOBase):
def write(self, buf):
# CPython and uPy pass in different types for buf (str vs bytearray)
print('write', len(buf))
return len(buf)
print('test', file=MyIO())