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')