try/except在pycharm中工作，但在使用pyinstaller编译后不能在exe中工作

Question

测试代码：

## file name: test.py
import scanpy as sc
print(sc.__version__)

然后使用pip安装scanpy

pip install scanpy==1.8.2
pip install pyinstaller==4.7

我使用下面的命令行生成了exe文件：

python -m PyInstaller --noupx test.py

然后我尝试运行test.exe。我得到了错误消息：

Traceback (most recent call last):
  File "scanpy\_metadata.py", line 28, in <module>
  File "pathlib.py", line 1221, in read_text
  File "pathlib.py", line 1208, in open
  File "pathlib.py", line 1063, in _opener
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\xie186\\PycharmProjects\\pitaya\\test_exe\\dist\\test\\pyproject.toml'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test.py", line 1, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scanpy\__init__.py", line 3, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scanpy\_metadata.py", line 38, in <module>
  File "scanpy\_compat.py", line 25, in pkg_metadata
  File "importlib_metadata\__init__.py", line 984, in metadata
  File "importlib_metadata\__init__.py", line 561, in from_name
importlib_metadata.PackageNotFoundError: No package metadata was found for scanpy
[20028] Failed to execute script 'test' due to unhandled exception!

但是当我在pycharm中运行这个脚本时，它工作得很好。我检查了与此错误相关的代码：https://github.com/theislab/scanpy/blob/16e62d1336a95966238113cdb5ab50f7d9f880ce/scanpy/_metadata.py#L24

在pycharm中，try部件将失败，而except部件中的代码将被执行。但在exe文件中，似乎应用程序将在try部件失败后退出。

任何帮助都将不胜感激！

Answer 1

添加--recursive-copy-metadata scanpy解决了我的问题：

python -m PyInstaller --recursive-copy-metadata scanpy --noupx ..\test.py