My IMAC 27" points to python2.7 how to update - python-3.x

I have installed the latest version of python3 and it shows in my application folder, but when I use the command line and ask for the version it is the factory version of 2.7. How do I change this for someone who is really basic with command line and other. I have read other posts and what to put in the command line exactly but get syntax errors. I heard about brew. Why is it so hard to do something so simple. Can I just change the command line to point to the new python3 automatically without using another 3rd party thing. Hope you can help and sorry for frustration.

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Problem with "import rarfile" in python on Ubuntu

Today I turned on my Ubuntu virtual machine and tried to do a project in Python 3.9.4,
but this one used rarfile module. Which is throwing errors.
I know rarfile uses unrar, and I installed both rarfile and unrar.
Tried to type unrar seperately and it works.
I almost spent whole day trying to figure this out.
My question is why does importing rarfile module not work, and how can I fix it.
I also read online it could have something to do with PATH, but I am pretty new to linux and don't know terminology of it and therefore don't know how to try to fix it.
Some information regarding that would probably help if not now, for the future problems regardless if it is connected to this problem or not.
Sorry if I formatted this post poorly, it's my 2nd post on here.
I would do pip install rarfile to make sure it is install
also you may want to do a pip list to make sure its intalled.
Also if python 2 is install then most likly you need to do pip3 install rarfile.

Anaconda Prompt(Anaconda3) does not recognize files in a directory

I took to heart the message that support for anaconda2 was dropped. I installed anaconda3 and used 2to3 to convert my *.py codes. Everything seemed to work as expected. I have several 2 line bat codes that cd to a particular directory and then call python to execute a particular *.py code in that directory. By loading Anaconda Prompt(Anaconda3) and invoking the bat file I could run pythons in that directory as expected.
Then, a couple of days ago, I made such a run and got an error message saying the *.py file could not be found. I immediately looked in the directory and the python file was there as expected. I then did a dir command in Anaconda Prompt(Anaconda3) and found that almost no files in the directory were listed. This was happening on my windows 10 laptop.
On my desktop, everything continues to work as expected. Are there any suggestions as to what could cause such a problem and how to fix it.
Thanks,
Mack Elrod
Responding to the request for additional information, I have a bin directory that is in path. In bin\MackData.bat is
c:
cd %USERPROFILE%\Documents\Medev\MackData
copy sugarhist.png sugarhist.old.png
python MackData.py
When I open Anaconda Prompt(Anaconda3) and enter MackData I get
(base) C:\Users\Mack>MackData
(base) C:\Users\Mack>c:
(base) C:\Users\Mack>cd C:\Users\Mack\Documents\Medev\MackData
(base) C:\Users\Mack\Documents\Medev\MackData>copy sugarhist.png sugarhist.old.png
1 file(s) copied.
(base) C:\Users\Mack\Documents\Medev\MackData>python MackData.py
python: can't open file 'MackData.py': [Errno 2] No such file or directory
(base) C:\Users\Mack\Documents\Medev\MackData>
But MackData.py is a python file in the directory MackData.
This code worked on this laptop until a few days ago and continues to work on my desktop computer. I can, of course, publish MackData.py but that seems irrelevant. The point is that Anaconda can't find it.
Thanks,
Mack
I must submit a sincere apology to this community. I have determined my problem and Anaconda is not responsible in any way. I thank all of you for you concerns and comments.
For any who might be interested I will give a brief outline of what happened. First, I installed Anaconda3. Several days later my directory, MackData, was moved to a new location. I conjecture that happened by me inadvertently letting my hand drag on the touch pad. Then, not knowing the location had changed I updated my laptop from my desktop. My update program not finding MackData where expected recreated it and put only the most recently changed files from the desktop into the new MackData. New but in the correct location. Then of course running my script in the Anaconda3 prompt failed. Doing a dir in the Anaconda3 prompt showed only a few files were there. I then went to Windows File Explore and looked at MackData and saw all of the expected files. I used the quick access feature which unknown to me pointed to the old directory in its new location.
That is not intended to be an excuse but only as an explanation. Again, I do apologize to the community.
Mack Elrod
I'm pretty sure newer anaconda launchers users different environment paths, and not even windows ones.
I suggest either checking the environment path within the anaconda launcher and configurations or, a better solution in my opinion, run these scrips using the regular python engine, without using anaconda (simpler, more determinant and works within your standard environment)

Unable to get python3 to work in Git on Windows10

I have installed the latest windows 10 version of Git v 24 and use the standard recommended install as shown on a number of websites including https://zarkom.net/blogs/how-to-install-git-and-git-bash-on-windows-9140
he has said that his install recommends for vers 19 are still ok for v24 and just click on Next etc. I have had this confirmed with other help guides but on install I type in after the $ sign either python and or python3 and nothing happens but I can see when running a test file the bash:
/c/Users/nigel/AppData/Local/Microsoft/WindowsApps/python3: Permission denied
I don't have python3 installed there but in standard C:\Users\nigel\AppData\Local\Programs\Python.
I have powershell running ok and am using Sublime Text 3 ok I can run code I prepare in Powershell version 5.6.. whatever it is now standard install part of Windows10. No issues running Python IDLE either.
When I search the reg with regedit and type in git bash I cannot trace this odd link to Microsoft/*/Python as above but in that folder there is an odd link not seen previously not sure what installed that other than sometime ago I might have started an instll of python via M store but sure I didn't but this odd python language server may have got installed through something else?
C:\Users\nigel\AppData\Local\Microsoft\Python Language Server\stubs.v1 is all I can find but in windowapps I found 0kb of a couple of files that are odd ie python.exe and python3.exe and size says 0kb.
I cant seem to find how to amend git so that it stops looking in this odd location and looks in correct folder as stated above ie C:\Users\nigel\AppData\Local\Programs\Python
I would appreciate any help although I am using powershell and ST3 ok on my python courses on UDEMY. I have tried to look at environmental path etc but cant see any reference to this odd path link with windowapps ? I have amended path ok previously for other editors or ensured that the path was pointing to correct python. The only other version of python I have is with Jupyter/ananconda but that is self contained my word ie it doesn't fire up unless I am in Anaconda or jupyter hope that makes sense which I use on another course ie bootcamp course

Pygame/Python/Terminal/Mac related

I'm a beginner, I have really hit a brick wall, and would greatly appreciate any advice someone more advanced can offer.
I have been having a number of extremely frustrating issues the past few days, which I have been round and round google trying to solve, tried all sorts of things to no avail.
Problem 1)
I can't import pygame in Idle with the error:
ModuleNotFoundError: No module named 'pygame' - even though it is definitely installed, as in terminal, if I ask pip3 to install pygame it says:
Requirement already satisfied: pygame in /usr/local/lib/python3.7/site-packages (1.9.4)
I think there may be a problem with several conflicting versions of python on my computer, as when i type sys.path in Idle (which by the way displays Python 3.7.2 ) the following are listed:
'/Users/myname/Documents', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/Users/myname/Library/Python/3.7/lib/python/site-packages', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages'
So am I right in thinking pygame is in the python3.7/sitepackages version, and this is why idle won't import it? I don't know I'm just trying to make sense of this. I have absoloutely no clue how to solve this,"re-set the path" or whatever. I don't even know how to find all of these versions of python as only one appears in my applications folder, the rest are elsewhere?
Problem 2)
Apparently there should be a python 2.7 system version installed on every mac system which is vital to the running of python regardless of the developing environment you use. Yet all of my versions of python seem to be in the library/downloaded versions. Does this mean my system version of python is gone? I have put the computer in recovery mode today and done a reinstall of the macOS mojave system today, so shouldn't any possible lost version of python 2.7 be back on the system now?
Problem 3)
When I go to terminal, frequently every command I type is 'not found'.
I have sometimes found a temporary solution is typing:
export PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
but the problems always return!
As I say I also did a system reinstall today but that has helped none!
Can anybody please help me with these queries? I am really at the end of my tether and quite lost, forgive my programming ignorance please. Many thanks.
Try it with the problem1
I'm not an expert neither, but I think you need to install both in terminal and python in order to use the program.
python -m pip install pygame
You should actually add the export PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin" to your .bash_profile (if you are using bash). Do this by opening your terminal, verifying that it says "bash" at the top. If it doesn't, you may have a .zprofile instead. Type ls -al and it will list all the invisible files. If you have .bash_profile listed, use that one. If you have .zprofile, use that.
Type nano .bash_profile to open and edit the profile and add the command to the end of it. This will permanently add the path to your profile after you restart the terminal.
Use ^X to exit nano and type Y to save your changes. Then you can check that it works when you try to run the program from IDLE.

How to find out the version of cygwin setup-x86.exe?

I wonder how to find out the version of the cygwin setup program (setup-x86 or setup-x86_64). I know there's setup.ini file when the setup program downloads stuff. There's a line "setup_version: 2.XXX" therein. Is there any direct way to get the version number? Something akin to "setup --version" on the command line.
There is no version command line as you can see from the help output
/setup-x86.exe -h
You can ask on the mailing list for this additional info to be added
as setup is currently under deep review.
The only way, currently available, is to look at the start window

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