Convert Python program (.py) to Windows executable file (.exe)
Step 1: install pyinstaller
Open cmd, enter pip install pyinstaller
pip install pyinstaller
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Maybe due to network problems, the download will time out.
Solution:
①[download on github][(https://github.com/pyinstaller/pyinstaller)]
②Then unzip to the python installation directory, click pyinstaller-develop after the unzip is complete [the file name here may be Different, no effect on the result], open cmd in the directory to install, the installation syntax is: python setup.py install
python setup.py install
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Step 2: Convert .py to .exe
Move the written .py file to the pyinstaller-develop file, then open cmd in the current directory, and then use the command: python pyinstaller.py -F check_port.py
python pyinstaller.py -F check_port.py
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Encapsulation 
packaging is finished
the last complete package can be seen, and the reciprocal (.exe) saved position of the line is an executable file
We can see the file we want by opening the path just prompted
PS: Sometimes the exe will flash back after opening, this may be because it automatically closed after executing the program. At this time, you only need to add a line of code to the end of the program.
Format:
import os
try: executed code
finally： os.system(“pause”)
os.system("pause")
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#Can make the code pause after execution, so that we can get the data obtained by running