util.py revision 6657:ef5fae93a3b2
1# Copyright (c) 2009 The Hewlett-Packard Development Company 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution; 11# neither the name of the copyright holders nor the names of its 12# contributors may be used to endorse or promote products derived from 13# this software without specific prior written permission. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27import os 28import sys 29 30def makeDir(path): 31 if os.path.exists(path): 32 if not os.path.isdir(path): 33 raise AttributeError, "%s exists but is not directory" % path 34 else: 35 os.mkdir(path) 36 37class PairContainer(object): 38 def __init__(self, pairs=None): 39 self.pairs = {} 40 if pairs: 41 self.pairs.update(pairs) 42 43 def __contains__(self, item): 44 return item in self.pairs 45 46 def __getitem__(self, item): 47 return self.pairs[item] 48 49 def __setitem__(self, item, value): 50 self.pairs[item] = value 51 52 def get(self, item, failobj=None): 53 return self.pairs.get(item, failobj) 54 55class Location(object): 56 def __init__(self, filename, lineno): 57 self.filename = filename 58 self.lineno = lineno 59 60 def __str__(self): 61 return '%s:%d' % (os.path.basename(self.filename), self.lineno) 62 63 def warning(self, message, *args): 64 if args: 65 message = message % args 66 #raise Exception, "%s: Warning: %s" % (self, message) 67 print >>sys.stderr, "%s: Warning: %s" % (self, message) 68 69 def error(self, message, *args): 70 if args: 71 message = message % args 72 raise Exception, "%s: Error: %s" % (self, message) 73 sys.exit("\n%s: Error: %s" % (self, message)) 74 75__all__ = [ 'makeDir', 'PairContainer', 'Location' ] 76