私は Python で大きなプロジェクトに取り組んでいますが、説明できない奇妙なエラーが発生しました。私のクラスの 1 つで、インスタンス化中に呼び出されるプライベート メソッドがあります。
def _convertIndex(self, dimInd, dimName):
'''Private function that converts numbers to numbers and non-integers using
the subclass\'s convertIndex.'''
print dimInd, ' is dimInd'
try:
return int(dimName)
except:
if dimName == '*':
return 0
else:
print self.param.sets, ' is self.param.sets'
print type(self.param.sets), ' is the type of self.param.sets'
print self.param.sets[dimInd], ' is the param at dimind'
return self.param.sets[dimInd].value(dimName)
それが出力しているもの：
0 is dimInd
[<coremcs.SymbolicSet.SymbolicSet object at 0x10618ad90>] is self.param.sets
<type 'list'> is the type of self.param.sets
<SymbolicSet BAZ=['baz1', 'baz2', 'baz3', 'baz4']> is the param at dimind
======================================================================
ERROR: testParameterSet (GtapTest.TestGtapParameter)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/myuser/Documents/workspace/ilucmc/gtapmcs/test/GtapTest.py", line 116, in testParameterSet
pset = ParameterSet(prmFile, dstFile, GtapParameter)
File "/Users/myuser/Documents/workspace/ilucmc/coremcs/ParameterSet.py", line 103, in __init__
self.distroDict, corrDefs = AbsBaseDistro.readFile(distFile, self.paramDict)
File "/Users/myuser/Documents/workspace/ilucmc/coremcs/Distro.py", line 359, in readFile
distro = cls.parseDistro(param, target, distroType, args)
File "/Users/myuser/Documents/workspace/ilucmc/coremcs/Distro.py", line 301, in parseDistro
return cls(param, target, distro, dim_names, argDict)
File "/Users/myuser/Documents/workspace/ilucmc/coremcs/Distro.py", line 150, in __init__
self.dim_indxs = list(starmap(self._convertIndex, enumerate(dim_names))) # convert to numeric values and save in dim_indxs
File "/Users/myuser/Documents/workspace/ilucmc/coremcs/Distro.py", line 194, in _convertIndex
print self.param.sets[dimInd], ' is the param at dimind'
IndexError: list index out of range
明らかに、これはクラス全体のコードではありませんが、私には理解できないものを表しています。self.param.sets にインデックスを付けると、エラーが発生します。どうやら、dimInd は範囲外です。問題は、dimInd が 0 であり、self.param.sets が長さ 1 のリストであるため (print ステートメントから示されているように)、なぜインデックスを作成できないのでしょうか?
編集:価値があるため、__init__メソッドは次のようになります。
'''
Stores a definitions of a distribution to be applied to a header variable.
See the file setup/gtap/DistroDoc.txt for the details.
'''
def __init__(self, param, target, distType, dim_names, argDict):
self.name = param.name
self.dim_names = dim_names
self.dim_indxs = []
self.target = target.lower() if target else None
self.distType = distType.lower() if distType else None
self.rv = None
self.argDict = {}
self.modifier = defaultdict(lambda: None)
self.param = param
# Separate args into modifiers and distribution arguments
for k, v in argDict.iteritems():
if k[0] == '_': # modifiers start with underscore
self.modifier[k] = v
else:
self.argDict[k] = v # distribution arguments do not have underscore
if self.target == 'index':
print dim_names
self.dim_indxs = list(starmap(self._convertIndex, enumerate(dim_names))) # convert to numeric values and save in dim_indxs
if distType == 'discrete':
entries = self.modifier['_entries']
if not entries:
raise DistributionSpecError("Not enough arguments given to discrete distribution.")
modDict = {k[1:]: float(v) for k, v in self.modifier.iteritems() if k[1:] in getOptionalArgs(DiscreteDist.__init__)}
self.rv = DiscreteDist(entries, **modDict)
return
sig = DistroGen.signature(distType, self.argDict.keys())
gen = DistroGen.generator(sig)
if gen is None:
raise DistributionSpecError("Unknown distribution signature %s" % str(sig))
self.rv = gen.makeRV(self.argDict) # generate a frozen RV with the specified arguments
self.isFactor = gen.isFactor