micropython/tests/extmod/uhashlib_sha1.py

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try:
import uhashlib as hashlib
except ImportError:
try:
import hashlib
except ImportError:
# This is neither uPy, nor cPy, so must be uPy with
# uhashlib module disabled.
print("SKIP")
raise SystemExit
try:
hashlib.sha1
except AttributeError:
# SHA1 is only available on some ports
print("SKIP")
raise SystemExit
sha1 = hashlib.sha1(b"hello")
sha1.update(b"world")
print(sha1.digest())