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data_structures.py
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Mon, Aug 26, 08:32

data_structures.py
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# Copyright (C) 2018 by the RROMPy authors
#
# This file is part of RROMPy.
#
# RROMPy is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# RROMPy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with RROMPy. If not, see <http://www.gnu.org/licenses/>.
#
import os
import time
from rrompy.utilities.base.types import Any, DictAny, ListAny
from rrompy.utilities.exception_manager import RROMPyWarning
__all__ = ['findDictStrKey', 'purgeDict', 'purgeList']
def findDictStrKey(key:Any, keyList:ListAny):
for akey in keyList:
if isinstance(key, str) and key.lower() == akey.lower():
return akey
return None
def purgeDict(dct:DictAny, allowedKeys : ListAny = [], silent : bool = False,
complement : bool = False, dictname : str = "",
baselevel : int = 0) -> DictAny:
if dictname != "":
dictname = " in " + dictname
dctcp = {}
for key in dct.keys():
akey = findDictStrKey(key, allowedKeys)
if (akey is None) != complement:
if not silent:
RROMPyWarning(("Ignoring key {0}{2} with value "
"{1}.").format(key, dct[key], dictname),
baselevel)
else:
if akey is None:
akey = key
dctcp[akey] = dct[key]
return dctcp
def purgeList(lst:ListAny, allowedEntries : ListAny = [],
silent : bool = False, complement : bool = False,
listname : str = "", baselevel : int = 0) -> ListAny:
if listname != "":
listname = " in " + listname
lstcp = []
for x in lst:
ax = findDictStrKey(x, allowedEntries)
if (ax is None) != complement:
if not silent:
RROMPyWarning("Ignoring entry {0}{1}.".format(x, listname),
baselevel)
else:
lstcp = lstcp + [ax]
return lstcp
def getNewFilename(prefix : str = "", extension : str = "dat",
timestamp : bool = True) -> str:
extra = ""
if timestamp: extra = time.strftime("_%y-%m-%d_%H:%M:%S", time.localtime())
filenameBase = "{}{}".format(prefix, extra)
idx = 0
filename = filenameBase + ".{}".format(extension)
while os.path.exists(filename):
idx += 1
filename = filenameBase + "_{}.{}".format(idx, extension)
return filename

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