

'''simple docstring'''







import math
import random
def       UpperCAmelCase__    (      UpperCAmelCase__,       UpperCAmelCase__ = False				)			->			float:
       if deriv:
              return value * (1 - value)
       return 1 / (1 + math.exp(-value				))


# Initial Value
__lowerCamelCase		       =    0.02
def       UpperCAmelCase__    (      UpperCAmelCase__,       UpperCAmelCase__				)			->			float:
       A_						=      float(2 * (random.randint(1,       1_00				)) - 1				)

       for _ in range(UpperCAmelCase__				):
              # Forward propagation
              A_						=      sigmoid_function(INITIAL_VALUE * weight				)
              # How much did we miss?
              A_						=      (expected / 1_00) - layer_a
              # Error delta
              A_						=      layer_1_error * sigmoid_function(UpperCAmelCase__,       UpperCAmelCase__				)
              # Update weight
              weight += INITIAL_VALUE * layer_1_delta

       return layer_a * 1_00


if __name__ == "__main__":
      import doctest

      doctest.testmod()

      __lowerCamelCase		       =    int(input('''Expected value: '''))
      __lowerCamelCase		       =    int(input('''Number of propagations: '''))
      print(forward_propagation(expected, number_propagations))



'''simple docstring'''







import os
import time

import pytest

from datasets.utils.filelock import FileLock, Timeout
def       UpperCAmelCase__    (      UpperCAmelCase__				)			->			int:
       A_						=      FileLock(str(tmpdir / """foo.lock"""				)				)
       A_						=      FileLock(str(tmpdir / """foo.lock"""				)				)
       A_						=      0.01
       with locka.acquire():
              with pytest.raises(UpperCAmelCase__				):
                     A_						=      time.time()
                     locka.acquire(UpperCAmelCase__				)
                     assert time.time() - _start > timeout







def       UpperCAmelCase__    (      UpperCAmelCase__				)			->			Dict:
       A_						=      """a""" * 10_00 + """.lock"""
       A_						=      FileLock(str(tmpdir / filename				)				)
       assert locka._lock_file.endswith(""".lock"""				)
       assert not locka._lock_file.endswith(UpperCAmelCase__				)
       assert len(os.path.basename(locka._lock_file				)				) <= 2_55
       A_						=      FileLock(tmpdir / filename				)
       with locka.acquire():
              with pytest.raises(UpperCAmelCase__				):
                     locka.acquire(0				)
