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https://github.com/licsber/micropython.git
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db06041d59
Add the buffer attribute to sys.stdin, sys.stdout and sys.stderr. This provides raw access to underlying stdio streams for the unix port (and others that use VfsPosix). Signed-off-by: stephanelsmith <stephane.smith@titansensor.com>
66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
# Test sys.std*.buffer objects.
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import sys
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try:
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sys.stdout.buffer
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sys.stdin.buffer
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sys.stderr.buffer
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except AttributeError:
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print("SKIP")
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raise SystemExit
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# force cpython to flush after every print
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# this is to sequence stdout and stderr
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def print_flush(*args, **kwargs):
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try:
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print(*args, **kwargs, flush=True)
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except TypeError:
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print(*args, **kwargs)
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print_flush("==stdin==")
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print_flush(sys.stdin.buffer.fileno())
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print_flush("==stdout==")
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print_flush(sys.stdout.buffer.fileno())
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n_text = sys.stdout.write("The quick brown fox jumps over the lazy dog\n")
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sys.stdout.flush()
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n_binary = sys.stdout.buffer.write("The quick brown fox jumps over the lazy dog\n".encode("utf-8"))
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sys.stdout.buffer.flush()
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print_flush("n_text:{} n_binary:{}".format(n_text, n_binary))
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# temporarily disabling unicode tests until future PR which fixes unicode write character count
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# n_text = sys.stdout.write("🚀")
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# sys.stdout.flush()
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# n_binary = sys.stdout.buffer.write("🚀".encode("utf-8"))
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# sys.stdout.buffer.flush()
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# print_flush("")
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# print_flush("n_text:{} n_binary:{}".format(n_text, n_binary))
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# n_text = sys.stdout.write("1🚀2a3α4b5β6c7γ8d9δ0ぁ1🙐")
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# sys.stdout.flush()
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# n_binary = sys.stdout.buffer.write("1🚀2a3α4b5β6c7γ8d9δ0ぁ1🙐".encode("utf-8"))
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# sys.stdout.buffer.flush()
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# print_flush("")
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# print_flush("n_text:{} n_binary:{}".format(n_text, n_binary))
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print_flush("==stderr==")
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print_flush(sys.stderr.buffer.fileno())
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n_text = sys.stderr.write("The quick brown fox jumps over the lazy dog\n")
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sys.stderr.flush()
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n_binary = sys.stderr.buffer.write("The quick brown fox jumps over the lazy dog\n".encode("utf-8"))
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sys.stderr.buffer.flush()
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print_flush("n_text:{} n_binary:{}".format(n_text, n_binary))
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# temporarily disabling unicode tests until future PR which fixes unicode write character count
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# n_text = sys.stderr.write("🚀")
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# sys.stderr.flush()
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# n_binary = sys.stderr.buffer.write("🚀".encode("utf-8"))
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# sys.stderr.buffer.flush()
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# print_flush("")
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# print_flush("n_text:{} n_binary:{}".format(n_text, n_binary))
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# print_flush("")
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