使用pyinstaller创建单个exe文件时导入错误

Question

I have a python package that involves several python modules. The project has been created in pycharm. I have used pyinstaller to create a single executable file of my python package. When I run the executable using a batch file I get an import error, specifically pandas has failed to be imported. Is there a reason why pyinstaller has not also collected the package dependencies in my virtual environment?

Thanks in advance for any help!

I have the following 2 errors: (1) ModuleNotFoundError: No module named 'pandas._libs.tslibs.np_datetime'

(2) File "site-packages\\pandas__init__.py", line 35, in ImportError: C extension: No module named 'pandas._libs.tslibs.np_datetime' not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace --force' to build the C extensions first.

Answer 1

There is one pip script for each virtual environment. So when you install a python module it get installed into the projectname\\venv\\Lib\\site-packages directory.

When you run pyinstaller from terminal to make the executable, pyinstaller checks for dependencies in Sys.path . But that path does not include the projectname\\venv\\Lib\\site-packages directory. Therefore pyinstaller cannot find those particular dependencies. In such cases it gives you warnings.Those warning can be found in 'warnname.txt' near your executable file.

EDIT: How to Configure pycharm to run pyinstaller

1. First you need to add pyinstaller into project interpreter.

2. Then you need to setup running configurations.

   

   Script name: path to your python script
   working path: Project location

   leave interpreter options as it is in the image.
   

3. Run pyinstaller. You can find your .exe in dist directory .

4. If the "Module not found" error still persists. You can add a hidden import hook and specify the names of the missing modules.Navigate to

Project Path\\venv\\Lib\\site-packages\\PyInstaller\\hooks

and create a new "hook-pandas.py" (hook-modulename.py) script and make a list of hidden import modules like this.

hiddenimports = ['pandas._libs.tslibs.np_datetime','pandas._libs.tslibs.nattype','pandas._libs.skiplist']

5. And run pyinstaller again, and it should work now.