How to correctly build application with library pypinyin

[BJladika]

I've encountered a problem, I tried to build application with library pypinyin and it fails to start due to missing some .json file, it looks like it fails to properly import/hook this library and I'm confused that usual methods of solving (like adding hidden import or copy_metadata) didnt solve the issue for me. I don't know is this bug or maybe I need to add some additional code in .spec file

pip install pypinyin

I even created a test project with only this library (and two lines of code) and it still fails to run/start in build properly.

import pypinyin

print("Hello World")

Traceback (most recent call last):
  File "app.py", line 1, in <module>
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 419, in exec_module
  File "pypinyin\__init__.py", line 9, in <module>
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 419, in exec_module
  File "pypinyin\constants.py", line 11, in <module>
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 419, in exec_module
  File "pypinyin\pinyin_dict.py", line 22, in <module>
  File "pypinyin\pinyin_dict.py", line 15, in _load_pinyin_dict
  File "codecs.py", line 906, in open
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Projects\\TestApp\\dist\\TestAppBuild\\_internal\\pypinyin\\pinyin_dict.json'

The .spec file config

# -*- mode: python ; coding: utf-8 -*-
from PyInstaller.utils.hooks import copy_metadata

datas = []
datas += copy_metadata('pypinyin')

a = Analysis(
    ['app.py'],
    pathex=[],
    binaries=[],
    datas=datas,
    hiddenimports=['pypinyin'],
    hookspath=[],
    hooksconfig={},
    runtime_hooks=[],
    excludes=[],
    noarchive=False,
    optimize=0,
)
pyz = PYZ(a.pure)

exe = EXE(
    pyz,
    a.scripts,
    [],
    exclude_binaries=True,
    name='testapp',
    debug=False,
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    console=False,
    disable_windowed_traceback=False,
    argv_emulation=False,
    target_arch=None,
    codesign_identity=None,
    entitlements_file=None,
)
coll = COLLECT(
    exe,
    a.binaries,
    a.datas,
    strip=False,
    upx=True,
    upx_exclude=[],
    name='TestAppBuild',
)

Upd: I found one possible solution with copying the pypinyin library from site-packages into build foldere (_internal), but I think its the wrong way of handling the problem, I'd like to see some solution with a .spec file

[BJladika]

Okay after long search, using collect_data_files solved my issue.

Just add this to the spec file or add command --collect-data to pyinstaller command

from PyInstaller.utils.hooks import collect_data_files

datas = []
datas += collect_data_files('pypinyin')