Friday, April 26, 2019

Re: [Avid-L2] Re: [Editing-List] OT: Python Script in Terminal Problem?

 

After some help with Tech support they gave me some command lines to reinstall avoiding existing stuff:

Here are the commands that were suggested:

Would you please try to run the below command and then re-try the NPack Checksum -S command?

pip install npack --ignore-installed --no-cache-dir
[*pip3 may need to be used in place of pip]

If error persists, would you mind running the below and sending over the details: 

python -V

pip -V

which python

After running these it was telling me for phthon -V Python 2.7.10.

I found this web site that suggested running a shell updater command that is located in the Python 3.7.3 folder:


After I ran this npack started working. The link above mentions that you don't want to remove older versions as some programs/apps or whatever might reference the ver. 2. It seems to be working now but I'm still foggy on what really is happening. There is mention of the proper version of python not being early enough in a list somewhere. I feel like I've done a lot but understood only a little. Seems like powerful stuff but in the wrong hands, like mine, it could destroy the world or just a little piece of it in my bay.

Here is the terminal window that fixed it:



Last login: Fri Apr 26 16:02:33 on ttys005
Edit-07:~ admin$ /Applications/Python\ 3.7/Update\ Shell\ Profile.command ; exit;
This script will update your shell profile when the 'bin' directory
of python is not early enough of the PATH of your shell.
These changes will be effective only in shell windows that you open
after running this script.
/Library/Frameworks/Python.framework/Versions/3.7/bin is not on your PATH or at least not early enough
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Process completed]


---In Avid-L2@yahoogroups.com, <edfuller@...> wrote :

John, Python is great. It is definitely worth learning if you have things that you can automate in your workflow.

Yes, when you type:
pip install npack

Python reaches out to the Python Package Index (https://pypi.org) and downloads a module called npack 0.7.0 - Netflix Packager for ContentHub.

If you don't want to dig around to find where it was installed, you can also get it as a tar file, which, when unpacked contains "npack.py". You can read this in a text editor to see how the npack script itself works. Python is designed to be readable. There's a lot of documentation freely available and some excellent books on the subject.

I'm reading the npack source code now...
It looks like this script takes a source folder, and calculates md5 checksums for each of the files in it. It can either print them out to the screen, or put them in a file called "checksums.txt" which it then compresses into a ZIP file.

It uses a bunch of Python's "batteries included" built in functions. Which you can read documentation for at python.org.

It uses "hashlib" to calculate md5 checksums. It uses "multiprocessing" to do these in batches. It uses "zipfile" to make zip files.

Pretty cool.

-- 
Ed Fuller
Sent with Airmail

On April 25, 2019 at 10:21:53 PM, bigfish@... [Avid-L2] (avid-l2@yahoogroups.com) wrote:

I was able to install npack successfully on my home computer.  It seems there is an extra step when installing Python that I skipped over on my work computer.  After python installs it prompts to:

"Congratulations!  Python 3.7.3 for macOS 10.9 or later was successfully installed.

One more thing: to verify the identity of secure network connections, this Python needs a set of SSL root certificates.  You can download and install a current curated set from the Certifi project by double-clicking on the Install Certificates icon in the Finder window.  See the ReadMe file for more information."

I did not do the above on the work computer.  I did it on the home computer and all is working.  Perhaps this plays into why I have problems at work.  I will try this tomorrow at work.  I guess it makes sense.  This might resolve what your are calling permissions issues.

I've heard back from net tech support and I think I will be in touch with them tomorrow.  Given it worked at home I think it's probably the certificates thing.

I don't quite understand what this is doing.  Is it sort of like Quick Keys in that it executes a script that is sort of like a macro?  When I type pip3 install npack in terminal is Python reaching out to the internet to locate npack script and downloading it into the python library so later it can be executed by the terminal command to start the checksum?  This is what it acts like but I'm far from my experience base in this arena.


---In Avid-L2@yahoogroups.com, <edfuller@...> wrote :

Try this:

cd to the directory where "npack" is located.

Instead of typing "npack", try "./npack" (dot slash npack)
This tells bash to run a file in the current working directory.

You may also need to set the permissions of npack to executable

chmod +x npack



On Thu, Apr 25, 2019 at 7:56 PM Jay Mahavier jay_mahavier@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:


Mmmm, I can't specifically solve this for you, but there is something about adding the path of where the command is located to a list of locations for bash.  

Or it might be that you need to be in something other than bash.

Not sure, not for one slight bit, but it's a place to start looking.


(I really need to be way way way way more up on my scripting)


Jay


On Apr 25, 2019, at 9:53 PM, John Moore bigfish@... [Editing-List] <Editing-List@yahoogroups.com> wrote:



Recently I posted about running an MD 5 checksum and I found that the network had it's own utility called npack that runs with Python.  We got it to work on one of our MacPros.  I'm trying to install it on another computer and I installed Python 3.7.3 successfully.  I ran the command to install npack in the terminal and it seemed to work but now when I try to run the script like we have on the other computer I get the following error:

-bash: npack: command not found

It's like the networks npack script isn't being seen.  I have confirmed it exists in the python script site folders so I don't know why it isn't being found.  The computer we got working was mac os 10.9.5 and I'm having issue with a computer with Mac OS 10.12.6 so maybe that's a factor.  

I've reached out to the network for some tech support but thought maybe some of the more code savvy folks might have a suggestion.

John Moore Barking Trout Productions Studio City, CA bigfish@...





__._,_.___
Posted by: bigfish@pacbell.net
Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (6)
Have you tried the highest rated email app?
With 4.5 stars in iTunes, the Yahoo Mail app is the highest rated email app on the market. What are you waiting for? Now you can access all your inboxes (Gmail, Outlook, AOL and more) in one place. Never delete an email again with 1000GB of free cloud storage.
this is the Avid-L2

SPONSORED LINKS
.

__,_._,___
Posted by Video Geek Squad at 4:33 PM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)