def handleFile(consumer, fileName):
def _go(writer):
with open(fileName, "rt") as f:
return reduce(writer,
[consumer(x.strip()) for x in f.readlines() if x], 0)
if not path.exists(fileName):
return 300
return _go(partial(writeErrand, firstOrNone(*path.splitext(fileName)) )) and 0
def finderFunc(ff, *arguments):
def extr(kw, f):
if kw in arguments:
return partial(f,_xtractKey(*arguments[arguments.index(kw):]))
return None
return firstOrNone(*filter(None,
[extr('limit',
lambda l,x: ff.find(x).limit(int(l))),
extr('skip',
lambda o,x: ff.find(x).skip(int(o))),
ff.find]))
def bytesOf(stream):
'''Could not read data from stream.'''
return firstOrNone(*mchain(stream, "read", "close"))
def linesOf(stream): # rig:3
'''Could not read lines out of stream.'''
return firstOrNone(*mchain(stream, "readlines", "close"))
def firstGood(*streams):
'''Did not receive any good byte streams.'''
return firstOrNone(*filter(goodStream, streams))
def writeTo(lines, stream): # rig:3
'''Unable to write to stream.'''
return goodStream(stream) and firstOrNone(stream.writelines(lines) is None,
stream.close())
