indentation

[Gandalf]

every time I switch editor all the script indentation get mixed up,
and python start giving me indentation weird errors.
indentation also hard to follow because it invisible unlike brackets
{ }

is there any solution to this problems?

thank you!

[Steven D'Aprano]

On Mon, 20 Oct 2008 14:25:17 -0400, Terry Reedy wrote:

If I type *hypothetical* code for a post, *I* have to
type all the spaces, and I often use 2 per indent level. If I type in
IDLE, *it* adds the spaces (4 per indent) automatically.

But of course you would never post code without testing it first, right?
That would an Abomination Unto Nuggan.

*wink*
--
Steven

[J. Clifford Dyer]

On Mon, 2008-10-20 at 13:29 +0000, Steven D'Aprano wrote:

On Mon, 20 Oct 2008 11:01:19 +0200, Bruno Desthuilliers wrote:

Steven D'Aprano a écrit :

On Sun, 19 Oct 2008 19:03:29 +0200, Bruno Desthuilliers wrote:

Steven D'Aprano a écrit :

(snip)

You can use tabs, or spaces. If you use spaces, you can choose 4
spaces, or 8, or any number,
By all means, make it 4 spaces - that's the standard.

It's *a* standard. I believe it is the standard for the Python standard
library, but there are other standards.

I can't remember having seen any other "standard" so far.

How about PEP 8? It's not even hidden deep in the bowels of the PEP --
it's almost at the top.
http://www.python.org/dev/peps/pep-0008/

"For really old code that you don't want to mess up, you can continue to
use 8-space tabs."

Fair, but limited to old code, so doesn't apply to instructions for new
code.

>
Then there's string.expandta bs():

expandtabs(...)
S.expandtabs([tabsize]) -string

Return a copy of S where all tab characters are expanded using spaces.
If tabsize is not given, a tab size of 8 characters is assumed.

The default for a tab does not imply anything about how python code
should be indented.

>
Here's Jamie Zawinski:
http://www.jwz.org/doc/tabs-vs-spaces.html

"On defaultly-configured Unix systems, and on ancient dumb terminals and
teletypes, the tradition has been for the TAB character to mean ``move to
the right until the current column is a multiple of 8.'' (As it happens,
this is how Netscape interprets TAB inside <PREas well.) This is also
the default in the two most popular Unix editors, Emacs and vi."

Again, refers to the interpretation of a tab, rather than indentation
conventions.

>
This page is a little old (2002), but it states that the standards for
OpenBSD and Linux (presumably the kernels) are 8 space indents:

http://xarg.net/writing/tabs

Not python. I think when Bruno says it's *the* standard, we can assume
he means "for python."

Here's a style guide that recommends 2, 3 or 4 space indents:

http://www.cs.bris.ac.uk/Teaching/Re...MS12100/style/

Again, it's for java and C, not python.

>
And of course, whenever there's a difference of opinion, we can turn to
the ultimate source of all knowledge: Googlefight! *wink*

http://www.googlefight.com/index.php...GB&word1=tab+8
+spaces&word2=t ab+4+spaces

Nearly 50 million hits for "tab 8 spaces" versus a piddly 762 thousand
hits for "tab 4 spaces".

And I still don't care how many spaces are in a tab. ;D

Cheers,
Cliff

[Ross Ridge]

Terry Reedy <tj*****@udel.e duwrote:

>Yes there is. If I type *hypothetical* code for a post, *I* have to
type all the spaces, and I often use 2 per indent level. If I type in
IDLE, *it* adds the spaces (4 per indent) automatically.

Hmm... I have doubt then how much it really can be *the* standard if
it's only being followed it when it's convenient.

Ross Ridge

--
l/ // Ross Ridge -- The Great HTMU
[oo][oo] rr****@csclub.u waterloo.ca
-()-/()/ http://www.csclub.uwaterloo.ca/~rridge/
db //

[Lawrence D'Oliveiro]

In message
<a8************ *************** *******@v15g200 0hsa.googlegrou ps.com>,
Gandalf wrote:

every time I switch editor all the script indentation get mixed up ...

Mixed up in what way? Are you configuring your editors to do automatic
space/tab conversion in inconsistent ways?

[Lawrence D'Oliveiro]

In message <01************ **********@news .astraweb.com>, Steven D'Aprano
wrote:

Here's Jamie Zawinski:
http://www.jwz.org/doc/tabs-vs-spaces.html

"On defaultly-configured Unix systems, and on ancient dumb terminals and
teletypes, the tradition has been for the TAB character to mean ``move to
the right until the current column is a multiple of 8.''

Actually, I think that should be "multiple of 8 plus 1". If you're in column
1, pressing tab will move the equivalent of 8 spaces, which takes you
column 9, not 8.

[Terry Reedy]

Steven D'Aprano wrote:

On Mon, 20 Oct 2008 14:25:17 -0400, Terry Reedy wrote:

>If I type *hypothetical* code for a post, *I* have to
type all the spaces, and I often use 2 per indent level. If I type in
IDLE, *it* adds the spaces (4 per indent) automatically.

But of course you would never post code without testing it first, right?
That would an Abomination Unto Nuggan.

*wink*

I have learned at least three times to either test or specify
*untested*, except when testing is impossible, as when discussing
unimplemented syntax or answering questions based on unposted input. I
have learned much from posting *tested* code snippets.

[Bruno Desthuilliers]

GHUM a écrit :
(snip)

Thus spake the Lord: Thou shalt indent with four spaces. No more, no
less.
Four shall be the number of spaces thou shalt indent, and the number
of thy
indenting shall be four. Eight shalt thou not indent, nor either
indent thou
two, excepting that thou then proceed to four. Tabs are right out.

+4 qotw !-)

[Marc 'BlackJack' Rintsch]

On Tue, 21 Oct 2008 17:41:08 +1300, Lawrence D'Oliveiro wrote:

In message <01************ **********@news .astraweb.com>, Steven D'Aprano
wrote:

>Here's Jamie Zawinski:
http://www.jwz.org/doc/tabs-vs-spaces.html

"On defaultly-configured Unix systems, and on ancient dumb terminals
and teletypes, the tradition has been for the TAB character to mean
``move to the right until the current column is a multiple of 8.''

Actually, I think that should be "multiple of 8 plus 1". If you're in
column 1, pressing tab will move the equivalent of 8 spaces, which takes
you column 9, not 8.

Ever noticed that computer freaks often start counting at 0? ;-)

Ciao,
Marc 'BlackJack' Rintsch

[Tim Rowe]

2008/10/21 Marc 'BlackJack' Rintsch <bj****@gmx.net >:

Ever noticed that computer freaks often start counting at 0? ;-)

We grow to be like our pets....

--
Tim Rowe