How to prepare the execution environment of the ultra-lightweight Python "Python embeddable" (about 15MB) Memo (until the introduction of pip and other libraries (eg psutil))

Ultra-lightweight Python "** Python embeddable **". An ultra-lightweight Python execution environment of about 8MB for download compressed file .zip and about 16MB for decompression. I was able to confirm how to prepare the execution environment, so make a note of it.

Download the Windows ** embeddable ** package (64-bit). (python-3.9.1-** embed **-amd64.zip)
After unpacking, pass the .py file to "python.exe" inside and execute it. (DOS command: python.exe sample.py)
** Only the Python standard library ** can be used, so to install other libraries, ** First ** Install "** pip ". Download destination: Download " get-pip.py **" from https://bootstrap.pypa.io/get-pip.py, drag "get-pip.py" onto "python.exe" & drop.
Open the file "** python39._pth **" with a text editor and remove the comment from "#import site" to "import site".
For example, to install the library "psutil" that obtains information such as CPU and memory usage, "DOS command: ** python.exe -m pip install psutil **"
OK

Details

https://www.python.org/downloads/windows/ 　↓ https://www.python.org/downloads/release/python-391/ Download the Windows embeddable package (64-bit). 　↓ python-3.9.1-embed-amd64.zip 　↓ When expanded, the folder "python-3.9.1-embed-amd64" will contain Mostly composed of .pyd (contents are DLL) and .dll files. 　↓ When you start "python.exe" inside, the interactive console is displayed.

import datetime
datetime.datetime.now()
x = 2**32
x

↓ Download destination: Download "get-pip.py" from https://bootstrap.pypa.io/get-pip.py, save it in the folder "python-3.9.1-embed-amd64", and "get-pip" Drag and drop ".py" onto "python.exe" (or DOS command: python.exe get-pip.py) and execute. "Pip" is available. 　↓ Open the file "python39._pth" with a text editor and uncomment "#import site" "import site" 　↓ For example, if you install the library "psutil" that obtains information such as CPU and memory usage, you can use "DOS command: python.exe -m pip install psutil". 　↓ Installation is complete. 　↓ When I try to use the library "psutil", CPU usage rate and memory usage rate are acquired and OK.

import psutil
psutil.cpu_percent()
psutil.virtual_memory()

↓ When the library "psutil" is installed, the execution environment is about 34MB.

reference

https://qiita.com/mm_sys/items/1fd3a50a930dac3db299 https://qiita.com/suzuki_y/items/3261ffa9b67410803443 https://pypi.org/project/psutil/