micropython/tests/unicode/file2.py

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# test reading a given number of characters
def do(mode):
if mode == "rb":
enc = None
else:
enc = "utf-8"
f = open("unicode/data/utf-8_2.txt", mode=mode, encoding=enc)
print(f.read(1))
print(f.read(1))
print(f.read(2))
print(f.read(4))
# skip to end of line
f.readline()
# check 3-byte utf-8 char
print(f.read(1 if mode == "rt" else 3))
# check 4-byte utf-8 char
print(f.read(1 if mode == "rt" else 4))
f.close()
do("rb")
do("rt")