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45 lines (36 loc) · 1012 Bytes
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Copy pathtool.py
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45 lines (36 loc) · 1012 Bytes
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from __future__ import print_function
import sys
import dbdb
OK = 0
BAD_ARGS = 1
BAD_VERB = 2
BAD_KEY = 3
def usage():
print("Usage:", file=sys.stderr)
print("\tpython -m dbdb.tool DBNAME get KEY", file=sys.stderr)
print("\tpython -m dbdb.tool DBNAME set KEY VALUE", file=sys.stderr)
print("\tpython -m dbdb.tool DBNAME delete KEY", file=sys.stderr)
def main(argv):
if not (4 <= len(argv) <= 5):
usage()
return BAD_ARGS
dbname, verb, key, value = (argv[1:] + [None])[:4]
if verb not in {'get', 'set', 'delete'}:
usage()
return BAD_VERB
db = dbdb.connect(dbname)
try:
if verb == 'get':
sys.stdout.write(db[key])
elif verb == 'set':
db[key] = value
db.commit()
else:
del db[key]
db.commit()
except KeyError:
print("Key not found", file=sys.stderr)
return BAD_KEY
return OK
if __name__ == '__main__':
sys.exit(main(sys.argv))