File: file_readinto.py

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file content (14 lines) | stat: -rw-r--r-- 276 bytes parent folder | download | duplicates (3) 
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b = bytearray(30)
f = open("io/data/file1", "rb")
print(f.readinto(b))
print(b)
f = open("io/data/file2", "rb")
print(f.readinto(b))
print(b)

# readinto() on writable file
f = open('io/data/file1', 'ab')
try:
    f.readinto(bytearray(4))
except OSError:
    print('OSError')