在为我的python脚本构建exe后dungeon.py，当PyBearLibTerminal.py（程序导入的脚本）尝试加载DLL时出现错误BearLibTerminal.dll。该脚本运行良好，它仅运行导致该错误的可执行文件。运行可执行文件时报告的错误是

[3464] Failed to execute script dungeon
Traceback (most recent call last):
  File "dungeon.py", line 2, in <module>
  File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
  File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1129, in _exec
  File "C:\Program Files\Python34\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module
    exec(bytecode, module.__dict__)
  File "PyBearLibTerminal.py", line 50, in <module>
RuntimeError: BearLibTerminal library cannot be loaded.

这PyBearLibTerminal.py是导致错误的文件的开头。

import sys, ctypes, numbers, os

_version3 = sys.version_info >= (3, 0)

_library = None
_possible_library_names = [
    'BearLibTerminal.dll',        # Generic Windows DLL
    './libBearLibTerminal.so',    # Local Linux SO
    './libBearLibTerminal.dylib', # Local OS X dylib
    './BearLibTerminal.so',       # Local Linux SO w/o prefix
    'libBearLibTerminal.so',      # System Linux SO
    'libBearLibTerminal.dylib',   # System OS X dylib
    'BearLibTerminal.so'          # System Linux SO w/o prefix 
]

ctypes.windll.kernel32.SetDllDirectoryW(os.getcwd().replace('\\', '/'))

for name in _possible_library_names:
    try:
        _library = ctypes.CDLL(name)
        break
    except OSError:
        continue

if _library is None:
    raise RuntimeError("BearLibTerminal library cannot be loaded.")

最后，这是我的dungeon.spec文件：

# -*- mode: python -*-

block_cipher = None


a = Analysis(['dungeon.py'],
             pathex=['C:\\Users\\Brett\\Documents\\Projects\\Spark'],
             binaries=[('BearLibTerminal.dll', '.')],
             datas=[('enemies.json', '.'), ('items.json', '.'), ('materials.json', '.'), ('names.json', '.'), ('unifont-8.0.01.ttf', '.')],
             hiddenimports=[],
             hookspath=[],
             runtime_hooks=[],
             excludes=[],
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             cipher=block_cipher)
pyz = PYZ(a.pure, a.zipped_data,
             cipher=block_cipher)
exe = EXE(pyz,
          a.scripts,
          exclude_binaries=True,
          name='dungeon',
          debug=False,
          strip=False,
          upx=True,
          console=True )
coll = COLLECT(exe,
               a.binaries,
               a.zipfiles,
               a.datas,
               strip=False,
               upx=True,
               name='dungeon')