Why Do I get an ImportError when building a .exe with pyinstaller?

Question

I just created a small GUI program that compiles and works fine in IPython, but when I try to export it to a .exe using pyinstaller it gives me an import error. I'm sure it's sklearn because when I comment out the sklearn imports my file open fine when I build it.

C:\Users\Chris\Anaconda>C:/Users/Chris/Anaconda/dist/Room_Test.exe
WARNING: file already exists but should not:                            C:\Users\Chris\AppData\Local\Temp\_MEI100402\Include\pyconfig.h
Traceback (most recent call last):
File "<string>", line 9, in <module>
File "C:\Users\Chris\Anaconda\Lib\site-    packages\PyInstaller\loader\pyi_importers.py", line 270, in load_module
exec(bytecode, module.__dict__)
  File "C:\Users\Chris\Anaconda\build\Room_Test\out00-    PYZ.pyz\sklearn.neighbors", line 6, in <module>
  File "C:\Users\Chris\Anaconda\Lib\site-    packages\PyInstaller\loader\pyi_importers.py", line 409, in load_module
    module = imp.load_module(fullname, fp, filename, self._c_ext_tuple)
  File "dist_metrics.pxd", line 48, in init sklearn.neighbors.ball_tree     (sklearn\neighbors\ball_tree.c:35726)
  File "C:\Users\Chris\Anaconda\Lib\site-    packages\PyInstaller\loader\pyi_importers.py", line 409, in load_module
    module = imp.load_module(fullname, fp, filename, self._c_ext_tuple)
  File "dist_metrics.pyx", line 52, in init sklearn.neighbors.dist_metrics     (sklearn\neighbors\dist_metrics.c:25494)
ImportError: No module named typedefs

Answer 1

You can still use pyinstaller by adding the following to your command:

--hidden-import sklearn.neighbors.typedefs

or by adding the following to your .spec file:

hiddenimports=['cython', 'sklearn', 'sklearn.neighbors.typedefs']

Answer 2

its better to use spec file to import another hidden libraries maybe cause the problem. I list all Sklearn libraries and add to spec file as a hiddenimports like this:

  # -*- mode: python -*-

block_cipher = None


a = Analysis(['MyPythonApplication.py'],
             pathex=['..\\ApplicationFolder'],
             binaries=[],
             datas=[],
             hiddenimports=['cython', 'sklearn', 'sklearn.ensemble', 'sklearn.neighbors.typedefs', 'sklearn.neighbors.quad_tree', 'sklearn.tree._utils'],
             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='ExeFileName',             
          debug=False,
          strip=False,
          upx=False,
          console=False )
coll = COLLECT(exe,
               a.binaries,
               a.zipfiles,
               a.datas,
               strip=False,
               upx=True,
               name='ApplicationName')