My python script runs fine, but the executable compiled with Pyinstaller produces a PicklingError. I am using Anaconda to write my scripts, and Anaconda prompt to run the Pyinstaller.I am using Python: 3.8.5 (conda), and Platform: Windows-10-10.0.18362-SP0. The problem appears to be caused by dill.dump_session('Test.txt'), and I was able to confirm this by writing a short test script:
import dill
print('Saving session...')
a = 3
y = 6
dill.dump_session('test.txt')
print('Saved session to test.txt')
Here is the full traceback error that occurs when I run the executable from Anaconda prompt:
File "Test.py", line 166, in <module>
session, previousSessionBoolean = loadPreviousSession()
File "Test.py", line 148, in loadPreviousSession
dill.dump_session('MACqGasDataImporter.pkl')
File "dill\_dill.py", line 359, in dump_session
File "dill\_dill.py", line 454, in dump
File "pickle.py", line 485, in dump
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1326, in save_module
File "pickle.py", line 715, in save_reduce
File "pickle.py", line 558, in save
File "dill\_dill.py", line 941, in save_module_dict
File "pickle.py", line 969, in save_dict
File "pickle.py", line 995, in _batch_setitems
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1373, in save_type
File "pickle.py", line 690, in save_reduce
File "pickle.py", line 558, in save
File "pickle.py", line 899, in save_tuple
File "pickle.py", line 558, in save
File "pickle.py", line 884, in save_tuple
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1390, in save_type
File "pickle.py", line 1073, in save_global
_pickle.PicklingError: Can't pickle <class 'ctypes.CDLL'>: it's not the same object as ctypes.CDLL
[15600] Failed to execute script Test
Here is the logging information given by Pyinstaller:
1945 INFO: PyInstaller: 4.3
1945 INFO: Python: 3.8.5 (conda)
1945 INFO: Platform: Windows-10-10.0.18362-SP0
1945 INFO: UPX is not available.
1961 INFO: Extending PYTHONPATH with paths
['C:\\Users\\kharvey\\Documents\\Python documents\\Python Scripts\\Test Script',
'C:\\Users\\kharvey\\Documents\\Python documents\\Python Scripts\\Gas scripts',
'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\Lib\\site-packages']
1992 INFO: checking Analysis
1992 INFO: Building Analysis because Analysis-00.toc is non existent
1992 INFO: Initializing module dependency graph...
2008 INFO: Caching module graph hooks...
2008 WARNING: Several hooks defined for module 'win32ctypes.core'. Please take care they do not conflict.
2023 INFO: Analyzing base_library.zip ...
10925 INFO: Processing pre-find module path hook distutils from 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\hooks\\pre_find_module_path\\hook-distutils.py'.
10925 INFO: distutils: retargeting to non-venv dir 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib'
18137 INFO: Caching module dependency graph...
18418 INFO: running Analysis Analysis-00.toc
18433 INFO: Adding Microsoft.Windows.Common-Controls to dependent assemblies of final executable
required by C:\Users\kharvey\Anaconda3\envs\env1\python.exe
18700 INFO: Analyzing Test.py
36944 INFO: Processing pre-safe import module hook six.moves from 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\hooks\\pre_safe_import_module\\hook-six.moves.py'.
40818 INFO: Processing pre-find module path hook site from 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\hooks\\pre_find_module_path\\hook-site.py'.
40818 INFO: site: retargeting to fake-dir 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\fake-modules'
57292 INFO: Analyzing hidden import 'pandas'
92184 INFO: Processing pre-safe import module hook urllib3.packages.six.moves from 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\hooks\\pre_safe_import_module\\hook-urllib3.packages.six.moves.py'.
229177 INFO: Processing pre-safe import module hook win32com from 'C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\_pyinstaller_hooks_contrib\\hooks\\pre_safe_import_module\\hook-win32com.py'.
285753 INFO: Processing module hooks...
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C:\Users\kharvey\Anaconda3\envs\env1\Lib\site-packages\win32com\client\makepy.py:369: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if path is not '' and not os.path.exists(path):
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321451 INFO: Determining a mapping of distributions to packages...
581090 WARNING: Unable to find package for requirement zope.event from package gevent.
581090 WARNING: Unable to find package for requirement greenlet from package gevent.
581090 WARNING: Unable to find package for requirement zope.interface from package gevent.
581090 INFO: Packages required by gevent:
['setuptools', 'setuptools', 'cffi', 'cffi']
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584764 INFO: Matplotlib backend "GTK3Agg": ignored
backend Gtk3Agg requires cairo
585209 INFO: Matplotlib backend "GTK3Cairo": ignored
cairo backend requires that pycairo>=1.11.0 or cairocffiis installed
585709 INFO: Matplotlib backend "MacOSX": ignored
cannot import name '_macosx' from 'matplotlib.backends' (C:\Users\kharvey\Anaconda3\envs\env1\Lib\site-packages\matplotlib\backends\__init__.py)
587030 INFO: Matplotlib backend "nbAgg": added
<string>:12: MatplotlibDeprecationWarning:
The matplotlib.backends.backend_qt4agg backend was deprecated in Matplotlib 3.3 and will be removed two minor releases later.
587655 INFO: Matplotlib backend "Qt4Agg": added
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cairo backend requires that pycairo>=1.11.0 or cairocffiis installed
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cairo backend requires that pycairo>=1.11.0 or cairocffiis installed
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cairo backend requires that pycairo>=1.11.0 or cairocffiis installed
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No module named 'wx'
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824684 INFO: Copying icons from ['C:\\Users\\kharvey\\Anaconda3\\envs\\env1\\lib\\site-packages\\PyInstaller\\bootloader\\images\\icon-console.ico']
824684 INFO: Writing RT_GROUP_ICON 0 resource with 104 bytes
824684 INFO: Writing RT_ICON 1 resource with 3752 bytes
824684 INFO: Writing RT_ICON 2 resource with 2216 bytes
824684 INFO: Writing RT_ICON 3 resource with 1384 bytes
824684 INFO: Writing RT_ICON 4 resource with 37019 bytes
824684 INFO: Writing RT_ICON 5 resource with 9640 bytes
824684 INFO: Writing RT_ICON 6 resource with 4264 bytes
824684 INFO: Writing RT_ICON 7 resource with 1128 bytes
824684 INFO: Updating manifest in C:\Users\kharvey\Documents\Python documents\Python Scripts\Test Script\build\Test\run_d.exe.mzxydkhf
824700 INFO: Updating resource type 24 name 1 language 0
824700 INFO: Appending archive to EXE C:\Users\kharvey\Documents\Python documents\Python Scripts\Test Script\dist\Test.exe
983293 INFO: Building EXE from EXE-00.toc completed successfully.
I tried using the latest developmental version of Pyinstaller (pip install https://github.com/pyinstaller/pyinstaller/archive/develop.zip), which produced a slightly different traceback error. This error suggests the problem could be due to multithreading. However, I am not using multithreading in this script. Here is the error message that results when I try to run the executable from Anaconda prompt:
Traceback (most recent call last):
File "Test.py", line 10, in <module>
File "dill\_dill.py", line 351, in dump_session
File "dill\_dill.py", line 446, in dump
File "pickle.py", line 485, in dump
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1317, in save_module
File "pickle.py", line 715, in save_reduce
File "pickle.py", line 558, in save
File "dill\_dill.py", line 933, in save_module_dict
File "pickle.py", line 969, in save_dict
File "pickle.py", line 995, in _batch_setitems
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1364, in save_type
File "pickle.py", line 690, in save_reduce
File "pickle.py", line 558, in save
File "pickle.py", line 899, in save_tuple
File "pickle.py", line 558, in save
File "pickle.py", line 884, in save_tuple
File "pickle.py", line 558, in save
File "dill\_dill.py", line 1381, in save_type
File "pickle.py", line 1073, in save_global
_pickle.PicklingError: Can't pickle <class 'multiprocessing.popen_spawn_win32.Popen'>: it's not the same object as multiprocessing.popen_spawn_win32.Popen
[27048] Failed to execute script Test
When I ran Pyinstaller for the first time, I got:
AttributeError: Module 'PyQt5' has no attribute '__version__'.
I excluded PyQt5 from my spec file in the Analysis section (excludes=['PyQt5']) and then ran "Pyinstaller Test.spec". Running the executable resulted in the error given above.
Attempt at a solution
I have been attempting to resolve this for several days without any luck.
I have tried different Pyinstaller versions, and tried uninstalling and reinstalling it numerous ways, with no success. I have tried using Pyinstaller versions 4.0, 4.1, 4.2, and 4.3, but they all result in the same error. I have even tried using the most recent developmental version (5.0) with no success. Pyinstaller 4.2 was working several weeks earlier, but now I cannot get it to work without the error. I have tried installing Pyinstaller with conda -c conda-forge Pyinstaller AND pip install Pyinstaller with no luck.
I have tried Googling for a solution, and searching StackOverFlow. Other people have had similar errors: "Can't pickle <class 'X'>: it's not the same object as X," but they have not had this issue with only the Pyinstaller executables.
