Re: [Fab-user] Not having much luck with your initial examples.

[Nick Timkovich]

Yeah, the >>> implies you're at the Python REPL, and the page I linked you to is a few pages into learning to use Fabric; so it's going to assume you installed the library. If you already know Tcl/Expect, I'm sure you can bang out a script to do your task at hand, and if you need it now and don't have time to pick up Python and Fabric on top of it, that sounds like your best option. 

When you get some spare time, there are a bunch of great tutorials that can help you with the syntax (which may be easy), and also how Python is loading/running scripts/packages/modules (which is usually less obvious), which Fabric then uses to find a 'fabfile' package. I haven't heard of Tidelift, but yeah, I feel your pain that a lot of training sites which were once free are now pay-only (or very expertly hide the free options, *coughcodecademycough*). Fortunately, the gigantic popularity of Python means new, free content is always being created, so some searching may help (I'm hesitant to cite anything in particular because I haven't looked at any recently)

I was curious what examples/documentation you were following along with originally, however, because it seemed incomplete, even for the 3-4 lines that you had. It would be nice to correct it so others aren't misled in the future.

On Fri, Nov 23, 2018 at 11:39 AM Bob Gustafson <address@hidden> wrote:

Hi Nick

Yes, 'incomplete' is a charitable description.

I have zit knowledge of python. Perhaps this has been accidental good luck. My favorite languages over the decades have been Fortransit, Pascal, Ruby, and lately Nim.

Using your linked example ('Getting Started'..), starting with the first code line:

   >>> from fabric import Connection

There seems to be a lot that is assumed to have been done by the reader. The >>> probably means that the reader has already typed 'python' to jump into an interactive Python session, but this is not mentioned.

Also, just typing 'python' is not sufficient, as the following lines may not work under Python 2.7 or Python 3.7. Which Python is invoked depends on what has been typed before.

Also, 'fabric' is used in the code line. This library must have been loaded or the line will not work. Again, loading fabric beforehand is not mentioned. Also 'fabric' comes in several versions <2, 2, and a version not recommended - 3.

I see from the libraries, and my experience with Sage, that lots of good things have been done with Python. However, the state of python documentation available on the internet leaves a lot unsaid. Perhaps it is all a game to get new users to buy a subscription to Tidelift.

At this point, for me, coding up 'expect' and fabric in Nim seems easier than continuing this frustration.

Best regards

Bob G

On 11/22/18 9:04 PM, Nick Timkovich wrote:

For the `fab` tool to pick up functions in your fabfile module/package as tasks, you need to decorate them with address@hidden decorator (specifically fabric.task). See http://docs.fabfile.org/en/2.4/getting-started.html#addendum-the-fab-command-line-tool  What documentation are you following? It sounds fairly incomplete and could be fixed.

Nick

On Thu, Nov 22, 2018 at 2:06 PM Bob Gustafson <address@hidden> wrote:

I am running on a Mac air with Mojave os 10.14.1.

I installed python with homebrew

Also using virtualenv and the folder fabric-test

cd fabric-test

air:fabric-test bobgus$ ls
env     fabfile.py

air:fabric-test bobgus$ source env/bin/activate

(env) air:fabric-test bobgus$ which python
/Users/bobgus/fabric-test/env/bin/python

(env) air:fabric-test bobgus$ python -V
Python 3.7.0

(env) air:fabric-test bobgus$ fab -V
Fabric 2.4.0
Paramiko 2.4.2
Invoke 1.2.0

(env) air:fabric-test bobgus$ cat fabfile.py
#!/usr/bin/env python

def welcome():
   print("Welcome to fabric running on python 3")

def uptime():
   run("uptime")fab

--------------------- testing -------

(env) air:fabric-test bobgus$ fab uptime
No idea what 'uptime' is!

(env air:fabric-test bobgus$ fab welcome
No idea what 'welcome' is!

--------------------------------------

I must be doing something wrong here..


_______________________________________________
Fab-user mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/fab-user