Re: Current thinking on required options
On Mon, Apr 19, 2021, Loris Bennett wrote:
>Hi,
>
>I have various small programs which tend to have an interface like the
>following example:
>
> usage: grocli [-h] [-o {check,add,delete}] [-u USERS [USERS ...]] [-g GROUP]
I would do this with the action is first argument.
Usage: grocli check|add|delete [-u USERS ...]
Bill
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Re: [Tutor] Unable to get the gateway IP of wlan interface using python code
On Tue, Nov 13, 2018, srinivasan wrote:
>Dear Python Experts,
>
>*First method:*
>
>I need to get the IP address basically the gateway IP in my setup I get it
>as "192.168.178.1" when I run the below standalone python code.
>
>
>*def get_gateway_ip(self):*
>*"""*
>*Get the IP address to the WIFI module from the AP*
>*"""*
>
>*cmd = 'ip route show 0.0.0.0/0 <http://0.0.0.0/0> dev wlp1s0 | cut
>-d\ -f3'*
>*f = os.popen(cmd)*
>*return str(f.read().strip())*
This command should get the gateway IP.
Linux: cmd = "ip route list | awk '/^default/{print $3}'"
or perhaps
Linux: cmd = "netstat -rn | awk '/^0.0.0.0/{print $2}'"
OSX: cmd = "netstat -rn | awk '/^default/{print $2}'"
I don't have a freebsd system available to test this, but I think
this pattern should work:
re.compile(r'^(default|0\.0\.0\.0)\s+(\S+)')
Bill
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On the free market, everyone earns according to his productive
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the producers. -- Murray N. Rothbard
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Re: preferences file
On Thu, Jan 24, 2019, Dave wrote: >I'm doing a small application and want to add user preferences. Did some >googling to see if there are standard Python ways/tools, but it seems not so >much. My specific questions are: > >1. Best practices for a user preference file/system? Generally I put them in the user's $HOME or $HOME/etc directory with appropriate permissions unless working in a virtual environement. >2. File format favored and why - ini, JSON, etc? I like ini for most user configuration files as the format is simple, easy to read, and handled nicely with the ConfigParser libraries. >3. File location? I'm using Ubuntu and I believe that the correct location >would be home/.config/ . What about Mac and Windows? See above. Same for Mac. I don't do Windows. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 The budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed lest Rome become bankrupt. People must again learn to work, instead of living on public assistance. -- Cicero - 55 BC -- https://mail.python.org/mailman/listinfo/python-list
Re: Convert Windows paths to Linux style paths
On Tue, Mar 12, 2019, Malcolm Greene wrote: >Looking for best practice technique for converting Windows style paths to >Linux paths. Is there an os function or pathlib method that I'm missing or >is it some combination of replacing Windows path separators with Linux path >separators plus some other platform specific logic? See os.path.join Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 The very concept of objective truth is fading out of the world. Lies will pass into history. -- George Orwell -- https://mail.python.org/mailman/listinfo/python-list
Re: Vim settings for Python (was: tab replace to space 4)
On Sat, Dec 07, 2019, Peter J. Holzer wrote: >As an aside, to prevent vim from inserting tabs in the first place, set >expandtab >sw=4 >and maybe also >ts=4 Inserting a comment in the file like this makes thing easy. # vim: expandtab sw=4 ts=4 nows wm=0 Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 Political language... is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind. -- George Orwell -- https://mail.python.org/mailman/listinfo/python-list
Re: OT: ALGOL 60 at 60
On Sun, May 17, 2020, DL Neil via Python-list wrote: >ALGOL 60 at 60: The greatest computer language you've never used and >grandaddy of the programming family tree >Back to the time when tape was king >By Richard Speed 15 May 2020 at 09:47 >https://www.theregister.co.uk/2020/05/15/algol_60_at_60/ Boy does that bring back some memories :-). ALGOL was the third programming language I learned after FORTRAN and Assembly on the Bendix G-20 in early 1966. I first learned ALGOL on G.E. time sharing, where input was paper tape, although it didn't require loading the compilers from tape so I never hat that pleasure. I loved the block structure of ALGOL, and started indenting FORTRAN so that the program logic stood out even if FORTRAN didn't understand it. ... >ALGOL was almost 'the machine language' for the Burroughs B6700 series (and >similar) but concurring with the article, we regarded it as somewhat academic >and majored in FORTRAN, COBOL, or both. (as distinct from those who defined >ComSc as compiler writing, for whom ALGOL was a brilliant tool!) I really got into ALGOL on a time sharing system using the Burroughs B-5500 where ALGOL was the system's native language, there was no Assembly Language per-se. The OS MCP, (Master Control Progam) was written entirely in ALGOL. The FORTRAN compiler generated ALGOL source, and I learned a lot looking at the ALGOL output of the FORTRAN program. Many of the programming methods I use today have their roots in doing a lot of scientific programming in ALGOL on the B-5500, then in BPL (Burroughs Programming Language) on Burroughs Medium Systems, B-2500->B-4500. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 In free governments the rulers are the servants, and the people their superiors & sovereigns." -- Benjamin Franklin -- https://mail.python.org/mailman/listinfo/python-list
Re: Missing python curses functions?
On Tue, May 19, 2020, Alan Gauld via Python-list wrote: >During my Covid19 lock-down I thought I'd spend my time translating >the "Linux Curses Programming HOWTO" document into Pythonic curses. > >One of the functions discussed that does not appear to have >a Python equivalent is attr_get() which gets the current >attributes. I haven't looked for it. ... >Is anyone other than me still even using Python curses? :-) Raises hand. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 Democracy Is Mob Rule with Income Taxes -- https://mail.python.org/mailman/listinfo/python-list
Re: How to remove "" from starting of a string if provided by the user
On Tue, Aug 11, 2020, Ganesh Pal wrote: >The possible value of stat['server2'] can be either (a) >"'/fileno_100.txt'" or (b) '/fileno_100.txt' . def stripquotes(s): '''Strip leading single or double quotes to any depth''' import re pat = re.compile(r'^([\'"])(.*)(\1)$') slast = None while slast != s: slast = s s = pat.cub(r'\2', s) return s # end stripquotes(s) Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 Democracy is the theory that the common people know what they want and deserve to get it good and hard. == H.L. Mencken -- https://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Spaces and tabs messing up code
On Tue, Jan 08, 2008, [EMAIL PROTECTED] wrote: > > my friend uses vim > > and i use xemacs > > so our shared python code is a mix of tabs and spaces and it is hard > for him to edit it in vim > > any idea on how to make it clean > > convert it all to 4 spaces? Do that, and in his ~/.vimrc file, add a line ``set expandtab'' (Friends don't let friends use emacs :-). Bill -- INTERNET: [EMAIL PROTECTED] Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way FAX:(206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676 Giving money and power to government is like giving whiskey and car keys to teenage boys -- P.J. O'Rourke -- http://mail.python.org/mailman/listinfo/python-list
