Problems and solutions in pyinstall packaging for pychart project

1、 Download and install pyinstaller library
（ One ） Direct command line installation

pip3 install pyinstaller

（ Two ） Or download the package through the official website , Then install locally
2、 Use pyinstaller Command line packaging
（ One ） For the entire project with dependent libraries, it is recommended to use -D The way , Contains the package directory , Including some dlls Application extension, etc . First -c There's a console , Again -w There is no need to pack the black window console ,logo.ico For custom exe Icon ,XXXX.py Main procedure py file . namely ：
First use the following command line to package ：

pyinstaller -D -c -i logo.ico XXXX.py

stay step 5 after , Then use the command line below to hide the black window , Pack again ：

pyinstaller -D -w -i logo.ico XXXX.py

（ Two ） You can also use -F To be packaged into a separate exe, Packing speed ratio -D A lot slower . The meaning of other documents is the same as ( One )

pyinstaller -F -c -i logo.ico XXXX.py   ## Generate separate exe, -c There are black windows on the console 
pyinstaller -F -w -i logo.ico XXXX.py  ## Generate separate exe,-w No console black window 

3、 When packaging with multithreaded files , Multiple windows need to appear at the same time , Therefore, you need to import in the main program multprocessing, That is, add the following statement to the main program .

import multiprocessing
.
.
.

if __name__ == "__main__":
    #################### Multi thread packaging needs to be added at the beginning of the main function 
    multiprocessing.freeze_support()

4、 After packaging ,exe stay dist Under the folder . A summary of the problems ：
（1）ModuleNotFoundError：No module name “xxx”
Cause analysis ： This is the lack of third-party libraries xxx
resolvent ： Can be in cmd perhaps pycharm Of Terminal For direct use pip Install this library
（2） appear Hidden import not found “xxx” and WARNING Tips
Cause analysis ： Will not affect the normal operation of the program , You can ignore this warning
resolvent ： Can be ignored
（3） Black window flashback
Cause analysis ： Some libraries are not installed or packaged pyinstaller Some unnecessary libraries are forcibly packed .
resolvent ： open .exe file , Solve the problem by checking the errors reported in the command window . such as ：： Put some necessary input files in the project , Configuration files, etc. are placed in the and exe Under the same level directory .

5、 After solving the problems occurred in the runtime , Delete... From the project folder (pycache,build,dist,xxx.spec) file

6、 Finally, it will include exe Of documents dist After the folder is compressed into a compressed package , In this way, you can double-click on another computer to run .

【 Last , You can ignore this , But at present, the configuration generated by packaging is modified spec resolved 】
(1) During packaging ,WARNING Warning tips ：

4377 WARNING: lib not found: torch_python.dll dependency of
D:\Software\Anaconda3\Path\envs\Yolov5-DeepSort-Pytorch\lib\site-packages\torch_C.cp38-win_amd64.pyd
4932 WARNING: lib not found: torch_cpu.dll dependency of
D:\Software\Anaconda3\Path\envs\Yolov5-DeepSort-Pytorch\lib\site-packages\torchvision_C.pyd
4936 WARNING: lib not found: c10_cuda.dll dependency of
D:\Software\Anaconda3\Path\envs\Yolov5-DeepSort-Pytorch\lib\site-packages\torchvision_C.pyd
4937 WARNING: lib not found: torch_cuda.dll dependency of
D:\Software\Anaconda3\Path\envs\Yolov5-DeepSort-Pytorch\lib\site-packages\torchvision_C.pyd
4938 WARNING: lib not found: c10.dll dependency of
D:\Software\Anaconda3\Path\envs\Yolov5-DeepSort-Pytorch\lib\site-packages\torchvision_C.pyd

(2) Modification method
Insert the following four lines .spec The configuration file ：

for d in a.datas:
	if '_C.cp38-win_amd64.pyd' in d[0]:
		a.datas.remove(d)
		break

（3） The details of the .spec The configuration file ：

# -*- mode: python ; coding: utf-8 -*-
block_cipher = None
a = Analysis(['main.py'],
             pathex=['D:\\Files'],
             binaries=[],
             datas=[],
             hiddenimports=[],
             hookspath=[],
             runtime_hooks=[],
             excludes=[],
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             cipher=block_cipher,
             noarchive=False)
####################################add
for d in a.datas:
	if '_C.cp38-win_amd64.pyd' in d[0]:
		a.datas.remove(d)
		break
####################################stop
pyz = PYZ(a.pure, a.zipped_data,
             cipher=block_cipher)
exe = EXE(pyz,
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          [],
          name='main',
          debug=False,
          bootloader_ignore_signals=False,
          strip=False,
          upx=True,
          upx_exclude=[],
          runtime_tmpdir=None,
          console=True )

After modifying the configuration file , Use the following command to compile exe file ：
pyinstaller mult_car.spec