kopia lustrzana https://github.com/micropython/micropython
90 wiersze
1.4 KiB
Python
90 wiersze
1.4 KiB
Python
try:
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import btree
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import uio
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import uerrno
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except ImportError:
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print("SKIP")
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raise SystemExit
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# f = open("_test.db", "w+b")
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f = uio.BytesIO()
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db = btree.open(f, pagesize=512)
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db[b"foo3"] = b"bar3"
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db[b"foo1"] = b"bar1"
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db[b"foo2"] = b"bar2"
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db[b"bar1"] = b"foo1"
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dbstr = str(db)
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print(dbstr[:7], dbstr[-1:])
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print(db[b"foo2"])
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try:
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print(db[b"foo"])
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except KeyError:
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print("KeyError")
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print(db.get(b"foo"))
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print(db.get(b"foo", b"dflt"))
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del db[b"foo2"]
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try:
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del db[b"foo"]
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except KeyError:
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print("KeyError")
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for k, v in db.items():
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print((k, v))
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print("---")
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for k, v in db.items(None, None):
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print((k, v))
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print("---")
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for k, v in db.items(b"f"):
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print((k, v))
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print("---")
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for k, v in db.items(b"f", b"foo3"):
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print((k, v))
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print("---")
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for k, v in db.items(None, b"foo3"):
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print((k, v))
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print("---")
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for k, v in db.items(b"f", b"foo3", btree.INCL):
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print((k, v))
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print("---")
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for k, v in db.items(None, None, btree.DESC):
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print((k, v))
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print(db.seq(1, b"foo1"))
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print(db.seq(1, b"qux"))
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try:
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db.seq(b"foo1")
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except OSError as e:
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print(e.args[0] == uerrno.EINVAL)
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print(list(db.keys()))
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print(list(db.values()))
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for k in db:
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print(k)
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db.put(b"baz1", b"qux1")
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print("foo1", "foo1" in db)
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print("foo2", "foo2" in db)
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print("baz1", "baz1" in db)
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try:
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print(db + db[b"foo1"])
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except TypeError:
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print("TypeError")
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db.flush()
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db.close()
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f.close()
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