Re: PyCharm's strict PEP and not so strict?

2023-04-20 Thread Mats Wichmann

On 4/19/23 17:19, dn via Python-list wrote:

The "light bulb" has little to do with "quotes"! This is one of the 
advantages of utilising a Python-native IDE (cf a more general-purpose 
alternative, perhaps with some Python add-on). PyCharm attempts to 
understand the code it is editing, and apply various lessons or 
experiences to offer intelligent assistance.


To nitpick a little bit, PyCharm isn't *exactly* Python-native, it's a 
derivative of the IntelliJ generic IDE platform (written in, sigh, Java) 
with a *very* evolved Python add-on and packaged in such a way as to 
make it look as if it weren't an addon at all (but if you lift the 
covers up you can see the roots)



Builtin bits are very configurable, usually, but I haven't found that 
the Python code inspection (this is the stuff that by default gives you 
the PEP8-type warnings) is particularly so - be happy to stand corrected 
on that. However, you can configure an external tool - say, pylint - and 
if you do, you configure that in the normal way (a .pylintrc rcfile, or 
a toml config file). If you do this, you can turn off those style checks 
from the builtin checker.   If you want.


--
https://mail.python.org/mailman/listinfo/python-list


Re: PyCharm's strict PEP and not so strict?

2023-04-20 Thread Thomas Passin

On 4/19/2023 7:19 PM, dn via Python-list wrote:



*PyCharm enables a range of Python-linters. Some by add-in. Some by
"External tools"*

I was not 'up' on "linters", Thanks for the heads up! Attempted 
finding a "linter" on jetbrains... I take it that finding a 'linter' 
for Build #PC-222.4554.11, built on March 15, 2023

Is a matter of hit and miss... Any suggestions?


Try a web-search for "Python linters". Linters, I've know a few... (hum 
along with the music...) have long been a part of the Python eco-system. 
They have usually been designed to run from Python or 'the 
command-line'. Accordingly, many can be added into PyCharm from 'the 
outside'.


The original purpose was possibly to guide/nudge coders into the 
practices recommended by PEP-008 (https://peps.python.org/pep-0008/). 
This, as you will read, is not about syntax, but more about coding "style".


There are many to choose from. Some are more strict than others. 
Recommendation: (for the good of your blood-pressure) stay away from 
"highly opinionated" alternatives, such as Black. Try the ones which 
offer options to turn-on/-off particular situations (as described earlier).


Be aware that most of these tools can be configured to be more or less 
fussy, but it's not going to be so easy for the uninitiated. 
Unconfigured, you will likely see a stream of messages that aren't 
helpful but may seem overwhelming. Once you have finally gotten one 
configured to your satisfaction, you probably will not need to change 
the configuration again for a long time.


You can generally disable specific warnings at a point in the code with 
special comments.  Using pylint, for example, perhaps appropriate in 
view of the OP's original post:


# pylint: disable = consider-using-f-string

--
https://mail.python.org/mailman/listinfo/python-list


Re: PyCharm's strict PEP and not so strict?

2023-04-19 Thread dn via Python-list
NB this reply came only to me (so @Alan will have missed your response 
to his posting). Have replied on-list (only) - please see earlier 
comment about email-client behaviors...



On 20/04/2023 08.11, Kevin M. Wilson wrote:

*What kind of problems are you experiencing with quotes?*
If we have some specific examples we can give specific answers.

/I have an issue with the 'Light Blub', if I wanted suggestions I'd turn 
on that option... Assuming it's an option!/


The "light bulb" has little to do with "quotes"! This is one of the 
advantages of utilising a Python-native IDE (cf a more general-purpose 
alternative, perhaps with some Python add-on). PyCharm attempts to 
understand the code it is editing, and apply various lessons or 
experiences to offer intelligent assistance.


Thus, the "light bulb" is an icon indicating that PyCharm had spotted 
one or more "intention actions". These may be faults in the code, or may 
be anticipating what you're about to do and offering to do it for you. A 
red light-bulb indicates that there is an error in the Python code. 
Whereas, the yellow color indicates opportunity, aka "a light-bulb 
moment". Hah!


Yes, there are times when the icon overlays and obstructs the code, and 
thus irritates. I believe it can be turned-off (but don't recommend such 
to coders at your level of skill). Please read the manual, specifically 
that page 
(https://www.jetbrains.com/help/pycharm/intention-actions.html) - 
there's even an F-string code-example!


In this case, PyCharm undoubtedly was picking-up that the string was 
opened by a single-quote but never closed. One of the useful options 
PyCharm suggests in this case, is to presume that the string is longer 
than will fit on one line, and it will 'break' the string for you/us and 
ensure that the correct punctuation is placed at the beginning and end 
of each fragment of the string - something many of us find either 
slightly confusing or a nuisance of 'boiler-plate'.


To see what it has noticed, the alternative actions are to mouse-click 
on the light-bulb, or to type Alt+Enter. Interestingly, the latter is 
called "Show Context Actions" (but is still talking about "Intentions". 
The description reads "Quick-fixes for highlighted errors and warnings, 
intention actions for improving and optimizing your code." 
(https://www.jetbrains.com/help/pycharm/mastering-keyboard-shortcuts.html)


You may have noticed some indicators/statistics at the top-right of the 
editing panel. Green ticks/check-marks, and amber/yellow or red 
caution-triangles. These similarly indicate problems PyCharm has 
noticed, or wisdom from which you may choose to benefit. These come from 
a feature called "inspection". There are some controls enabling 
adjustment of "inspection severity" 
(https://www.jetbrains.com/help/pycharm/configuring-inspection-severities.html) 
which may be worth the reading-time. However, and once again, changing 
any cannot be recommended to someone at an early stage of Python-experience.



*Not really. What is the problem. Use of single versus double quotes is 
straightforward - use one or the other and make sure they match(opening 
and closing) You can nest one type inside the
other if you need literal quotes. And of course the same applies to 
triple quotes except you can include newlines inside those.*

*
*
Not stupid typing... Thanks! I use Double quotes, the light blub 
suggestions aren't, in many cases, relevant to my

style of coding, nor of 'english'... I'd like to set my options!


Sadly this wouldn't help!

If you (can) turn-off such warnings in PyCharm, it will simply delay the 
inevitable - when the code is executed Python will object to the opening 
of a single-quote and not finding its matching close.

ie the issue is NOT with PyCharm (nor with Python) but ...



*PyCharm enables a range of Python-linters. Some by add-in. Some by
"External tools"*

I was not 'up' on "linters", Thanks for the heads up! Attempted finding 
a "linter" on jetbrains... I take it that finding a 'linter' for Build 
#PC-222.4554.11, built on March 15, 2023

Is a matter of hit and miss... Any suggestions?


Try a web-search for "Python linters". Linters, I've know a few... (hum 
along with the music...) have long been a part of the Python eco-system. 
They have usually been designed to run from Python or 'the 
command-line'. Accordingly, many can be added into PyCharm from 'the 
outside'.


The original purpose was possibly to guide/nudge coders into the 
practices recommended by PEP-008 (https://peps.python.org/pep-0008/). 
This, as you will read, is not about syntax, but more about coding "style".


There are many to choose from. Some are more strict than others. 
Recommendation: (for the good of your blood-pressure) stay away from 
"highly opinionated" alternatives, such as Black. Try the ones which 
offer options to turn-on/-off particular situations (as described earlier).




"stones" for bull, how do I set up the kind of "checking" I 

Re: PyCharm's strict PEP and not so strict?

2023-04-19 Thread dn via Python-list

On 20/04/2023 04.25, Alan Gauld wrote:

On 19/04/2023 10:51, Kevin M. Wilson via Python-list wrote:

  I'm in a bit of a quandary, I want some strict syntax errors to be flagged,


OK, You might want to use a "linter" in that case because most
tools use the interpreter itself to flag syntax errors.



  but the use of single quotes vs double quotes!
NOT what I need from the 'checker', you dig?


Not really. What is the problem. Use of single versus double quotes
is straightforward - use one or the other and make sure they
match(opening and closing) You can nest one type inside the
other if you need literal quotes. And of course the same applies
to triple quotes except you can include newlines inside those.

What kind of problems are you experiencing with quotes?
If we have some specific examples we can give specific answers.


"stones" for bull, how do I set up the kind of "checking" I want?


That's not a phrase with which I'm familiar but my guess
is you need to install a linter tool and then, possibly
configure it to flag or hide particular error/warning types
to your personal taste. Each tool is different so you
will need to read the docs on how to configure it
(and how to plumb it into your IDE).

Personally I've never felt the need for any stricter error
checking than the interpreter provides so I can't offer
anything beyond the generic suggestion to use a linter.


+1

PyCharm enables a range of Python-linters. Some by add-in. Some by 
"External tools" 
(https://www.jetbrains.com/help/pycharm/configuring-third-party-tools.html).


Once a linter is made-available, some allow one to tune the application 
or relaxation of certain 'rules', eg whether commas in a comma-separated 
list are to be followed by a space.


Whether any enable the restriction of quotes use is another matter - 
probably for the reasons @Alan has already covered.


PyCharm auto-magically enters both an opening-quote and a closing-quote 
whenever start typing a string. The 'trick' is not to delete the close 
whilst editing.


After gaining experience, I have a convention of when to use apostrophes 
and when double-quotes. These old eyes dislike mixing both in a single 
expression - but sometimes it is the best course to follow.


YMMV!

--
Regards,
=dn
--
https://mail.python.org/mailman/listinfo/python-list


Re: PyCharm's strict PEP and not so strict?

2023-04-19 Thread Alan Gauld
On 19/04/2023 10:51, Kevin M. Wilson via Python-list wrote:
>  I'm in a bit of a quandary, I want some strict syntax errors to be flagged,

OK, You might want to use a "linter" in that case because most
tools use the interpreter itself to flag syntax errors.


>  but the use of single quotes vs double quotes! 
> NOT what I need from the 'checker', you dig? 

Not really. What is the problem. Use of single versus double quotes
is straightforward - use one or the other and make sure they
match(opening and closing) You can nest one type inside the
other if you need literal quotes. And of course the same applies
to triple quotes except you can include newlines inside those.

What kind of problems are you experiencing with quotes?
If we have some specific examples we can give specific answers.

> "stones" for bull, how do I set up the kind of "checking" I want?

That's not a phrase with which I'm familiar but my guess
is you need to install a linter tool and then, possibly
configure it to flag or hide particular error/warning types
to your personal taste. Each tool is different so you
will need to read the docs on how to configure it
(and how to plumb it into your IDE).

Personally I've never felt the need for any stricter error
checking than the interpreter provides so I can't offer
anything beyond the generic suggestion to use a linter.

-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos


-- 
https://mail.python.org/mailman/listinfo/python-list


PyCharm's strict PEP and not so strict?

2023-04-19 Thread Kevin M. Wilson via Python-list
Greetings,     I'm in a bit of a quandary, I want some strict syntax errors 
to be flagged, but the use of single quotes vs double quotes! NOT what I need 
from the 'checker', you dig? As I've recently returned to the IDE, and no 
longer have the
"stones" for bull, how do I set up the kind of "checking" I want?
Thank you, Kevin
"When you pass through the waters, I will be with you: and when you pass 
through the rivers, they will not sweep over you. When you walk through the 
fire, you will not be burned: the flames will not set you ablaze."      
Isaiah 43:2

|  | Virus-free.www.avg.com |

-- 
https://mail.python.org/mailman/listinfo/python-list