(SE) Självförsörjande PV-system utan förbinding till elnätet. (DE) Autarkes PV-System ohne Verbidung zum Stromnetz.
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44 lines
1.4 KiB
44 lines
1.4 KiB
import sys
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import argparse
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import json
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import random
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__author__ = 'm3x1m0m'
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class c_num_gen:
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def __init__(self, imax_num, ifname):
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self.max_num = imax_num
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self.fname = ifname
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self.__nums = []
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def __del__(self):
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# Save on object destruction.
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self.__write()
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def __read(self):
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with open(self.fname, "r") as rf:
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self.__nums = json.load(rf)
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def __write(self):
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with open(self.fname, "w") as wf:
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json.dump(self.__nums, wf)
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def __rand_num(self):
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num = random.randint(0, self.max_num)
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return hex(num).upper()
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def create_new_number(self):
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if len(self.__nums) == 0:
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self.__read()
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rand_num = self.__rand_num()
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while rand_num in self.__nums:
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rand_num = self.__rand_num()
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self.__nums.append(rand_num)
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return rand_num
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def main():
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parser = argparse.ArgumentParser(description='Random number generator w/ memory.')
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parser.add_argument('-f','--file', help='File name for memory.', required=True)
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parser.add_argument('-c','--create', help='Create a new number.', action='store_true')
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args = parser.parse_args()
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max_num = (1<<16)
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generator = c_num_gen(max_num, args.file)
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if (args.create):
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print("New number: {}".format(generator.create_new_number()))
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if __name__ == "__main__":
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main()
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