.py to exe error "oserror winerror 193"

[snippsat]

Look as this Thread it can help.
You need to figure out what's the main version in Environment Variables Path.
Thonny comes with own build in Python version for ease of use,but you can also use python.org version.

Do this from command line(cmd)

# Test python
C:\>python -c "import sys; print(sys.executable)"
C:\python37\python.exe

# Test pip
C:\>pip -V
pip 19.3.1 from c:\python37\lib\site-packages\pip (python 3.7)

# Where is pyinstaller
C:\>where pyinstaller
C:\Python37\Scripts\pyinstaller.exe
C:\Python38\Scripts\pyinstaller.exe

C:\>

So my main version is Windows Path is Python 3.7,so if i do this.

C:\>pyinstaller --onefile some.py

It will use Python 3.7,this is same all folder in cmd as it's main version in Path.
If i go into C:\Python38\Scripts\ folder and do the same it will pyinstaller(not work yet 3.8) with Python 3.8.

Can have may version i have lot,just need to understand how Windows see this and have one main version.
py can be used to assess all standard versions version.

E:\div_code
λ py -0
Installed Pythons found by py Launcher for Windows
 -3.8-32 *
 -3.7-32
 -3.6-32
 -3.5-32
 -3.4-32
 -2.7-32

Is it that my windows is 32 bit, and my python3 is the 64 bit version?

If you start python from command line(cmd) you will see if Python version is 32-bit or 64-bit.

[MSC v.1916 32 bit (Intel)] --> 32-bit 
[MSC v.1915 64 bit (AMD64)] --> 64-bit