Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #102199 > unrolled thread

psss...I want to move from Perl to Python

Back to article view | Back to comp.lang.python

Contents

  psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-28 19:01 -0500
    Re: psss...I want to move from Perl to Python paul.hermeneutic@gmail.com - 2016-01-28 17:22 -0700
    Re: psss...I want to move from Perl to Python Nathan Hilterbrand <nhilterbrand@gmail.com> - 2016-01-28 19:21 -0500
      Re: psss...I want to move from Perl to Python Rick Johnson <rantingrickjohnson@gmail.com> - 2016-01-28 19:23 -0800
        Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-29 14:26 +1100
      Re: psss...I want to move from Perl to Python wxjmfauth@gmail.com - 2016-01-30 02:26 -0800
        Re: psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-31 17:34 -0500
          Re: psss...I want to move from Perl to Python Michael Torrie <torriem@gmail.com> - 2016-01-31 16:45 -0700
          Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-02-01 10:48 +1100
          Re: psss...I want to move from Perl to Python Terry Reedy <tjreedy@udel.edu> - 2016-01-31 18:51 -0500
            Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-31 18:59 -0800
              Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-02-01 14:15 +1100
                Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-31 19:43 -0800
                Re: psss...I want to move from Perl to Python Rick Johnson <rantingrickjohnson@gmail.com> - 2016-02-02 14:53 -0800
    Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-29 11:25 +1100
      Re: psss...I want to move from Perl to Python Steven D'Aprano <steve@pearwood.info> - 2016-01-29 18:12 +1100
        Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-29 18:19 +1100
        Re: psss...I want to move from Perl to Python Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-01-29 09:12 +0000
          Re: psss...I want to move from Perl to Python James Harris <james.harris.1@gmail.com> - 2016-01-29 11:03 +0000
            Re: psss...I want to move from Perl to Python Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-01-29 12:21 +0000
              Re: psss...I want to move from Perl to Python Steven D'Aprano <steve@pearwood.info> - 2016-01-30 00:46 +1100
                Re: psss...I want to move from Perl to Python Ben Finney <ben+python@benfinney.id.au> - 2016-01-30 09:47 +1100
                  Re: psss...I want to move from Perl to Python Steven D'Aprano <steve@pearwood.info> - 2016-01-30 22:12 +1100
              Re: psss...I want to move from Perl to Python Rick Johnson <rantingrickjohnson@gmail.com> - 2016-01-29 13:30 -0800
                Re: psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-29 19:57 -0500
                  Re: psss...I want to move from Perl to Python Ben Finney <ben+python@benfinney.id.au> - 2016-01-30 12:04 +1100
                Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-29 19:38 -0800
                  Re: psss...I want to move from Perl to Python Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-01-31 11:18 +1300
                    Re: psss...I want to move from Perl to Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-01-31 12:56 +1100
                      Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-30 19:22 -0800
                        Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-01-31 14:48 +1100
                          Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-30 19:53 -0800
                            Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-01-31 20:56 +1100
                            Re: psss...I want to move from Perl to Python Paul Rubin <no.email@nospam.invalid> - 2016-01-31 09:45 -0800
                              Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-31 18:08 -0800
                          Re: psss...I want to move from Perl to Python Steven D'Aprano <steve@pearwood.info> - 2016-01-31 20:23 +1100
                            Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-01-31 20:53 +1100
                              Re: psss...I want to move from Perl to Python Paul Rubin <no.email@nospam.invalid> - 2016-01-31 09:49 -0800
                                Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-02-01 08:16 +1100
                        Re: psss...I want to move from Perl to Python Terry Reedy <tjreedy@udel.edu> - 2016-01-31 07:28 -0500
                          Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-31 05:12 -0800
                  Re: psss...I want to move from Perl to Python Rick Johnson <rantingrickjohnson@gmail.com> - 2016-01-30 14:25 -0800
                Re: psss...I want to move from Perl to Python Rustom Mody <rustompmody@gmail.com> - 2016-01-29 20:04 -0800
          Re: psss...I want to move from Perl to Python Random832 <random832@fastmail.com> - 2016-01-29 10:07 -0500
            Re: psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-29 12:56 -0500
            Re: psss...I want to move from Perl to Python Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-01-30 11:21 +1300
          Re: psss...I want to move from Perl to Python sohcahtoa82@gmail.com - 2016-01-29 12:49 -0800
            Re: psss...I want to move from Perl to Python Rick Johnson <rantingrickjohnson@gmail.com> - 2016-01-29 14:29 -0800
        Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-01-30 10:48 +1100
    Re: psss...I want to move from Perl to Python Cameron Simpson <cs@zip.com.au> - 2016-01-29 12:20 +1100
    Re: psss...I want to move from Perl to Python Paul Rubin <no.email@nospam.invalid> - 2016-01-28 18:06 -0800
      Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-29 13:34 +1100
        Re: psss...I want to move from Perl to Python sohcahtoa82@gmail.com - 2016-01-29 12:41 -0800
          Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-30 07:54 +1100
          Re: psss...I want to move from Perl to Python Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-01-30 11:27 +1300
      Re: psss...I want to move from Perl to Python Michael Torrie <torriem@gmail.com> - 2016-01-28 21:42 -0700
      Re: psss...I want to move from Perl to Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-01-29 08:54 -0500
    Re: psss...I want to move from Perl to Python Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-29 08:24 +0200
    Re: psss...I want to move from Perl to Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-01-29 08:50 -0500
    Re: psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-29 12:04 -0500
    Re: psss...I want to move from Perl to Python "Sven R. Kunze" <srkunze@mail.de> - 2016-01-29 18:39 +0100
    Re: psss...I want to move from Perl to Python Fillmore <fillmore_remove@hotmail.com> - 2016-01-29 15:42 -0500
      Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-30 07:51 +1100
      Re: psss...I want to move from Perl to Python Nathan Hilterbrand <nhilterbrand@gmail.com> - 2016-01-29 16:38 -0500
      Re: psss...I want to move from Perl to Python Cody Piersall <cody.piersall@gmail.com> - 2016-01-29 15:50 -0600
        Re: psss...I want to move from Perl to Python Josef Pktd <josef.pktd@gmail.com> - 2016-01-29 16:48 -0800
      Re: psss...I want to move from Perl to Python Terry Reedy <tjreedy@udel.edu> - 2016-01-29 22:08 -0500
      Re: psss...I want to move from Perl to Python Chris Angelico <rosuav@gmail.com> - 2016-01-30 14:12 +1100
    Re: psss...I want to move from Perl to Python Ben Finney <ben+python@benfinney.id.au> - 2016-01-30 09:49 +1100
    Re: psss...I want to move from Perl to Python Larry Hudson <orgnut@yahoo.com> - 2016-01-29 22:22 -0800
    Re: psss...I want to move from Perl to Python "Sven R. Kunze" <srkunze@mail.de> - 2016-01-30 13:43 +0100
    Re: psss...I want to move from Perl to Python <paul.hermeneutic@gmail.com> - 2016-02-02 10:00 -0700
    Re: psss...I want to move from Perl to Python "Martin A. Brown" <martin@linux-ip.net> - 2016-02-02 13:04 -0800
    Re: psss...I want to move from Perl to Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-02-02 19:36 -0500

Page 4 of 4 — ← Prev page 1 2 3 [4]

#102241

Hi,

On 29.01.2016 01:01, Fillmore wrote:
> I look and Python and it looks so much more clean....
>
> add to that that it is the language of choice of data miners...
>
> add to that that iNotebook looks powerful....
>

All true. :)

> Does Python have Regexps?

"import re"

https://docs.python.org/3.5/library/re.html

> How was the Python 2.7 vs Python 3.X solved? which version should I go 
> for?

Python 3 is the new and better one.

(I for one can see we already use all __future__ imports to get as close 
as possible to Python 3 in our production code)

> Do you think that switching to Python from Perl is a good idea at 45?
>

http://srkunze.blogspot.de/2016/01/next-programming-language.html

> Where do I get started moving from Perl to Python?

some keywords:

basic mathematical calculations
dicts and lists
classes
closures/mixins

and other tutorials. :)

> which gotchas need I be aware of?

Don't worry. Just try it out. :)

Best,
Sven

[toc] | [prev] | [next] | [standalone]

#102246

I actually have a few followup question.

- will iNotebook also work in Python 3?

- What version of Python 3 do you recommend I install on Windows?

- Is Python 3 available also for CygWin?

- I use Ubuntu at home. Will I be able to install Python 3 with apt-get? 
will I need to uninstall previous versions?

- Is there a good IDE that can be used for debugging? all free IDEs for 
Perl suck and it would be awesome if Python was better than that.

Thanks


On 1/28/2016 7:01 PM, Fillmore wrote:
>
> I learned myself Perl as a scripting language over two decades ago. All

[toc] | [prev] | [next] | [standalone]

#102248

On Sat, Jan 30, 2016 at 7:42 AM, Fillmore <fillmore_remove@hotmail.com> wrote:
> I actually have a few followup question.
>
> - will iNotebook also work in Python 3?

You mean the IPython notebook? Yep!

> - What version of Python 3 do you recommend I install on Windows?

The latest stable - currently, that's 3.5.

> - Is Python 3 available also for CygWin?

I'l let someone else answer that.

> - I use Ubuntu at home. Will I be able to install Python 3 with apt-get?
> will I need to uninstall previous versions?

You should be able to simply "apt-get install python3" and get
whichever release your Ubuntu is shipping. It might be 3.4 or 3.3, but
it's unlikely to be older than that.

> - Is there a good IDE that can be used for debugging? all free IDEs for Perl
> suck and it would be awesome if Python was better than that.
>

Debugging Python code is generally easy enough without an IDE; any
time something goes wrong, you get an exception with a very pretty
traceback. That's usually enough on its own. A little bit of editor
integration can help you jump to the lines mentioned, in the same way
that you might get that with C compiler errors; that's all I've ever
needed.

ChrisA

[toc] | [prev] | [next] | [standalone]

#102251

On Fri, Jan 29, 2016 at 3:42 PM, Fillmore <fillmore_remove@hotmail.com>
wrote:

>
> I actually have a few followup question.
>
> - will iNotebook also work in Python 3?
>
> - What version of Python 3 do you recommend I install on Windows?
>
> - Is Python 3 available also for CygWin?
>
> - I use Ubuntu at home. Will I be able to install Python 3 with apt-get?
> will I need to uninstall previous versions?
>
> - Is there a good IDE that can be used for debugging? all free IDEs for
> Perl suck and it would be awesome if Python was better than that.
>
> Thanks
>
>
>
> On 1/28/2016 7:01 PM, Fillmore wrote:
>
>>
>> I learned myself Perl as a scripting language over two decades ago. All
>>
>
> --
> https://mail.python.org/mailman/listinfo/python-list
>

Yes, python3 is available for cygwin.  My cygwin (fairly current) has
python 3.4.3 installed

Nathan

[toc] | [prev] | [next] | [standalone]

#102252

On Fri, Jan 29, 2016 at 2:42 PM, Fillmore <fillmore_remove@hotmail.com>
wrote:
> I actually have a few followup question.

> - will iNotebook also work in Python 3?
Yes!  And just FYI, it's called they Jupyter Notebook now, but pretty much
everyone still (colloquially) calls it the IPython Notebook so you're in
good company.  When you're searching online, you should search for Jupyter
though, or you might get obsolete docs.

> - What version of Python 3 do you recommend I install on Windows?
Might as well go for Python 3.5.

> [snip questions I don't know the answer to]
> - Is there a good IDE that can be used for debugging? all free IDEs for
Perl suck and it would be awesome if Python was better than that.
PyCharm is a really good IDE.  You can use the community edition for free
as long as it's for open source projects or your company makes less than $1
million a year.  For bigger projects I use PyCharm, but it's not bad to use
just a plain text editor either.  If your company is making $1 million a
year, presumably they can afford the license fees.  Download link:
https://www.jetbrains.com/pycharm/download/

Cody

[toc] | [prev] | [next] | [standalone]

#102264

On Friday, January 29, 2016 at 4:50:25 PM UTC-5, Cody Piersall wrote:
> On Fri, Jan 29, 2016 at 2:42 PM, Fillmore <fillmore >
> wrote:
> > I actually have a few followup question.
> 
> > - will iNotebook also work in Python 3?
> Yes!  And just FYI, it's called they Jupyter Notebook now, but pretty much
> everyone still (colloquially) calls it the IPython Notebook so you're in
> good company.  When you're searching online, you should search for Jupyter
> though, or you might get obsolete docs.
> 
> > - What version of Python 3 do you recommend I install on Windows?
> Might as well go for Python 3.5.
> 
> > [snip questions I don't know the answer to]
> > - Is there a good IDE that can be used for debugging? all free IDEs for
> Perl suck and it would be awesome if Python was better than that.
> PyCharm is a really good IDE.  You can use the community edition for free
> as long as it's for open source projects or your company makes less than $1
> million a year.  For bigger projects I use PyCharm, but it's not bad to use
> just a plain text editor either.  If your company is making $1 million a
> year, presumably they can afford the license fees.  Download link:
> https://www.jetbrains.com/pycharm/download/

spyder is great for developing scripts (especially data analysis and scientific)
pydev/eclipse is very good for larger packages or projects.

Great features: automatic, immediate code checking for finding those typos, undefined names and unused names, and similar  (look out for red)
(and of course code completion, nicer than in IDLE)

Another very useful tool for me during bug hunting sessions is to drop into the debugger when running nosetests.

In my experience notebooks are for when I know what I'm doing and want a nice summary or presentation, but not when I need to figure out what I'm supposed to be doing.

Josef

> 
> Cody

[toc] | [prev] | [next] | [standalone]

#102271

On 1/29/2016 3:51 PM, Chris Angelico wrote:
> On Sat, Jan 30, 2016 at 7:42 AM, Fillmore <fillmore_remove@hotmail.com> wrote:

>> - Is there a good IDE that can be used for debugging? all free IDEs for Perl
>> suck and it would be awesome if Python was better than that.
>>
>
> Debugging Python code is generally easy enough without an IDE; any
> time something goes wrong, you get an exception with a very pretty
> traceback. That's usually enough on its own. A little bit of editor
> integration can help you jump to the lines mentioned, in the same way
> that you might get that with C compiler errors; that's all I've ever
> needed.

When one runs code from an IDLE editor, output and exceptions go to the 
IDLE Shell.  Right click on a traceback line and select 'Go to 
file/line' and IDLE will display the file in an IDLE editor (opening it 
if necessary) and put the cursor on the proper line.  (It does the same 
with grep output.)

-- 
Terry Jan Reedy

[toc] | [prev] | [next] | [standalone]

#102272

On Sat, Jan 30, 2016 at 2:08 PM, Terry Reedy <tjreedy@udel.edu> wrote:
> On 1/29/2016 3:51 PM, Chris Angelico wrote:
>>
>> On Sat, Jan 30, 2016 at 7:42 AM, Fillmore <fillmore_remove@hotmail.com>
>> wrote:
>
>
>>> - Is there a good IDE that can be used for debugging? all free IDEs for
>>> Perl
>>> suck and it would be awesome if Python was better than that.
>>>
>>
>> Debugging Python code is generally easy enough without an IDE; any
>> time something goes wrong, you get an exception with a very pretty
>> traceback. That's usually enough on its own. A little bit of editor
>> integration can help you jump to the lines mentioned, in the same way
>> that you might get that with C compiler errors; that's all I've ever
>> needed.
>
>
> When one runs code from an IDLE editor, output and exceptions go to the IDLE
> Shell.  Right click on a traceback line and select 'Go to file/line' and
> IDLE will display the file in an IDLE editor (opening it if necessary) and
> put the cursor on the proper line.  (It does the same with grep output.)

Yep. Same happens if you run the file from SciTE, and probably a lot
of other editors too. I don't call them "IDEs" because of that one
feature, but honestly, I don't need anything more of an IDE.

ChrisA

[toc] | [prev] | [next] | [standalone]

#102259

"Sven R. Kunze" <srkunze@mail.de> writes:

> On 29.01.2016 01:01, Fillmore wrote:
> > How was the Python 2.7 vs Python 3.X solved? which version should I
> > go for?
>
> Python 3 is the new and better one.

More importantly: Python 2 will never improve; Python 3 is the only one
that is actively developed.

-- 
 \           “We spend the first twelve months of our children's lives |
  `\          teaching them to walk and talk and the next twelve years |
_o__)           telling them to sit down and shut up.” —Phyllis Diller |
Ben Finney

[toc] | [prev] | [next] | [standalone]

#102282

On 01/28/2016 04:01 PM, Fillmore wrote:
>
> I learned myself Perl as a scripting language over two decades ago. All through this time, I
> would revert to it from time to time whenever I needed some text manipulation and data analysis
> script.
>
> My problem? maybe I am stupid, but each time I have to go back and re-learn the syntax, the
> gotchas, the references and the derefercing, the different syntax between Perl 4 and Perl 5,
> that messy CPAN in which every author seems to have a different ideas of how things should be
> done....
>
> I get this feeling I am wasting a lot of time restudying the wheel each tim...
>
> I look and Python and it looks so much more clean....
>
> add to that that it is the language of choice of data miners...
>
> add to that that iNotebook looks powerful....
>
> Does Python have Regexps?
>
> How was the Python 2.7 vs Python 3.X solved? which version should I go for?
>
> Do you think that switching to Python from Perl is a good idea at 45?
>
> Where do I get started moving from Perl to Python?
>
> which gotchas need I be aware of?
>
> Thank you

Check out this link:  http://www.linuxjournal.com/article/3882

It is an account of ESR's[1] first experiences going to Python from Perl.  It's somewhat old 
(2000), but a very interesting read.  And probably relevant to your questions.

      -=- Larry -=-

[1]  Eric S. Raymond

[toc] | [prev] | [next] | [standalone]

#102300

On 29.01.2016 23:49, Ben Finney wrote:
> "Sven R. Kunze" <srkunze@mail.de> writes:
>
>> On 29.01.2016 01:01, Fillmore wrote:
>>> How was the Python 2.7 vs Python 3.X solved? which version should I
>>> go for?
>> Python 3 is the new and better one.
> More importantly: Python 2 will never improve; Python 3 is the only one
> that is actively developed.
>

Exactly. The following story also confirms that: always use up-to-date 
software (not only for security reasons).

We recently upgraded from Django 1.3 to 1.4 to 1.5 to 1.6 to 1.7 and now 
to 1.8. It was amazing how much code (and workarounds) we could remove 
by simply using standard Django tools (small things but used hundreds of 
times).

Thus: Python 3.

Best,
Sven

[toc] | [prev] | [next] | [standalone]

#102409

On Jan 29, 2016 6:51 AM, "Dennis Lee Bieber" <wlfraed@ix.netcom.com> wrote:
>
>
http://www.barnesandnoble.com/w/perl-to-python-migration-martin-c-brown/1004847881?ean=9780201734881

Given that this was published in 2001, surely it is time for a second
edition.

[toc] | [prev] | [next] | [standalone]

#102411

Hello,

>http://www.barnesandnoble.com/w/perl-to-python-migration-martin-c-brown/1004847881?ean=9780201734881
>
>Given that this was published in 2001, surely it is time for a 
>second edition.

How many times do you think somebody migrates from Perl to Python?!

  ;)

-Martin

P.S.  I was amused when I first discovered (about 15 years ago)
   Martin C. Brown, an author of Perl books.  I am also amused to 
   discover that he has written one on Python.  Too many of us
   chaps named 'Martin Brown'.

     https://en.wikipedia.org/wiki/Radio_Active_(radio_series)
     the incompetent hospital-radio trained Martin Brown (Stevens)

P.P.S.  In case it is not utterly clear, I am not the above author.

-- 
Martin A. Brown
http://linux-ip.net/

[toc] | [prev] | [next] | [standalone]

#102414

On Tue, 2 Feb 2016 10:00:27 -0700, <paul.hermeneutic@gmail.com> declaimed
the following:

>On Jan 29, 2016 6:51 AM, "Dennis Lee Bieber" <wlfraed@ix.netcom.com> wrote:
>>
>>
>http://www.barnesandnoble.com/w/perl-to-python-migration-martin-c-brown/1004847881?ean=9780201734881
>
>Given that this was published in 2001, surely it is time for a second
>edition.

	No doubt -- I just used as evidence that there was such a book...
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

[toc] | [prev] | [standalone]

Page 4 of 4 — ← Prev page 1 2 3 [4]

Back to top | Article view | comp.lang.python

csiph-web