Mu: settings.json on osx?

[brjdk]

hi mu developers

new here, new to osx, new to mu and new to micro:bit - so quite new :-)

i have some questions, but i'm not sure where to ask them - please feel free to move them or guide me.

• where do i find the settings.json on osx? i have searched but not found.
• is it possible to disable the warning popup that pops up every time i press flash?
• is it there any keyboard shortcuts for eg. flash?

thanks
Jorgensen

[ZanderBrown]

Hello, new people is what we are all about!

Do you know what version of Mu you are using? We've been working on a new version for a couple years now so some things have been implemented just aren't in the codewith.mu download yet..

The folder mu uses for settings.json is inside a hidden directory so your unlikely to find it by searching

If your version of Mu has the cog icon in the bottom right you can click it to see the logs, near the top you should see the settings path listed

[brjdk]

Hi Zander

I downloaded my version (can't figure out how to check the version) from codewith.mu, so i guess its an old version?
but no cog icon.

where do i find the lastest version for osx?

i can't quite figure this page out
https://github.com/mu-editor/mu

jorgensen

[brjdk]

I've just tried download the latest version (v0.9.13) from here https://github.com/mu-editor/mu/releases, but i don't see a cog in the buttom right corner.

Jorgensen

[ZanderBrown]

Yes that version doesn't have it, it's only more recent beta releases

Unfortunately I'm unsure where the settings.json is on macOS (I use Linux), perhaps @carlosperate can help you out

[brjdk]

Thanks Zander - do you know how i download the latest beta version for osx?

Jorgensen

[ZanderBrown]

macOS test packages are available here: http://mu-builds.s3-website.eu-west-2.amazonaws.com/?prefix=osx/ but you may have to try a few to find one that works

Alternatively if you have pip installed you could use pip3 install mu-editor in a terminal, there are tutorials online for how to install pip

[brjdk]

hi zander

i went ahead and tried what you suggested - installed python3 and pip (not really knowing what i was doing).

then i added install mu-editor, and a lot of packages got downloaded and installed, and then it ended like this

Successfully built pgzero tornado simplegeneric backcall
Installing collected packages: sip, pyqt5, qscintilla, pyflakes, six, cycler, python-dateutil, pytz, numpy, pyparsing, matplotlib, pygame, pgzero, PyQtChart, decorator, ipython-genutils, traitlets, jupyter-core, tornado, pyzmq, jupyter-client, simplegeneric, appnope, parso, jedi, wcwidth, prompt-toolkit, pickleshare, backcall, pygments, ptyprocess, pexpect, ipython, ipykernel, qtconsole, pycodestyle, pyserial, mu-editor
Successfully installed PyQtChart-5.10 appnope-0.1.0 backcall-0.1.0 cycler-0.10.0 decorator-4.3.0 ipykernel-4.8.2 ipython-6.3.1 ipython-genutils-0.2.0 jedi-0.12.0 jupyter-client-5.2.3 jupyter-core-4.4.0 matplotlib-2.1.2 mu-editor-1.0.0b15 numpy-1.14.2 parso-0.2.0 pexpect-4.5.0 pgzero-1.1 pickleshare-0.7.4 prompt-toolkit-1.0.15 ptyprocess-0.5.2 pycodestyle-2.3.1 pyflakes-1.6.0 pygame-1.9.3 pygments-2.2.0 pyparsing-2.2.0 pyqt5-5.10 pyserial-3.4 python-dateutil-2.7.2 pytz-2018.4 pyzmq-17.0.0 qscintilla-2.10.2 qtconsole-4.3.1 simplegeneric-0.8.1 sip-4.19.8 six-1.11.0 tornado-5.0.2 traitlets-4.3.2 wcwidth-0.1.7

but where to i find the mu-editor now?

thanks
jorgensen

[brjdk]

i have downloaded the lastest version from here:
https://github.com/mu-editor/mu

and looked here
http://mu.readthedocs.io/en/latest/setup.html

and started the terminal, changed to the folder with the files from github and entered python3 run.py but got the error

Traceback (most recent call last):
File "run.py", line 2, in
from mu.app import run
File "/Users/brj/Desktop/tmp/mu-master/mu/__init__.py", line 9, in
current_locale, encoding = locale.getdefaultlocale()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 562, in getdefaultlocale
return _parse_localename(localename)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 490, in _parse_localename
raise ValueError('unknown locale: %s' % localename)
ValueError: unknown locale: UTF-8

Jorgensen

[ZanderBrown]

When mu is installed though pip you can type mu-editor to run it

As for the traceback you seem to have found a bug

[brjdk]

hi zander

sorry for being such a noob - but where do i write "mu-editor", and how?

if i write python3 mu-editor in the folder where the downloaded files are i get this:

Bos-MacBook-Pro:mu-master brj$ python3 mu-editor
/Library/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python: can't open file 'mu-editor': [Errno 2] No such file or directory
Bos-MacBook-Pro:mu-master brj$ python
Python 2.7.10 (default, Oct 6 2017, 22:29:07)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.31)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

quit()
Bos-MacBook-Pro:mu-master brj$ python3
Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 03:03:55)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
mu-editor
Traceback (most recent call last):
File "", line 1, in
NameError: name 'mu' is not defined

Jorgensen

[carlosperate]

Hi @brjdk,

First of all, good call installing Mu via pip, as the app bundles in http://mu-builds.s3-website.eu-west-2.amazonaws.com/?prefix=osx/ are currently broken (we store test files in there, so it's more for internal development and testing).

About your second error (the one in your last message), the command you would need to run is python3 -m mu or python3 run.py to execute Mu from the source code you downloaded. When the mu-editor command is run, that executes the version of Mu installed when you did pip install mu-editor.

About your first error (the one you got when running python3 run.py), it looks like you've found an interesting bug, thanks for reporting it! It will help us fix it and make Mu better.

@ntoll @tjguk @ZanderBrown I've been meaning to look into this one for little while, since it depends on environmental variables, and to be honest, I can't say I fully understand the description from the docs. So I'm not all that confidence that it will always return predictable results in different OSes (of course I could be wrong, that was just the completely unsubstantiated "feeling" I got from reading that):
https://github.com/mu-editor/mu/blob/bc4fc942921089fccbc5464399b3a87a932cafda/mu/__init__.py#L9
https://docs.python.org/3.5/library/locale.html#locale.getdefaultlocale
The reason this was on my radar, is that when using PyCharm it returns None, so in my dev copy I've been wrapping it in a "try except" and giving it a default value.

@brjdk Could you give us a bit more info about your OS? Like version and language?
Could you also try executing this line of code in the terminal?

python3 -c "import locale;print(locale.getdefaultlocale())"

When I run it I get:

$ python3 -c "import locale;print(locale.getdefaultlocale())"
('en_GB', 'UTF-8')

[carlosperate]

@ukbaz has found this related ticket in the Python issue tracker: https://bugs.python.org/issue18378

[tjguk]

Heh :) I was just looking at that!

ISTM that we're only using the locale info to determine the correct translation. So a fairly simple option is to try/except and drop through to our default language, which we have to do anyway for unknown languages.

[ntoll]

Hello folks,

This is interesting.

@brjdk once you've pip installed Mu, you should just be able to type mu-editor in the terminal and "it should just work" (tm). :-)

@carlosperate / @tjguk that's an interesting bug which simply doesn't appear on my OS (Linux). I concur with @tjguk as to the probable best way forward to fix it: try it and except by setting default language.

I'm up to my eyes in PyWeek today and have a v.busy weekend ahead so will be off radar until Monday (when I'll re-focus on Mu for a week).

[brjdk]

Hi ntoll

i'm really not a programmer, just an architect that have done some PHP / javascript coding, and wanted to play around with an micro:bit - and use mu for that. so i'm actually just looking for newest version of mu for osx.

should i be able to an version of mu that i can run just as any app on osx?

as i wrote, i don't really understand what i'm doing - just following instructions and guessing abbreviations :-)

could be cool to compile my own version of mu editor - though :-)

thanks
jorgensen

i hope this says more to you guys than to me.

Bos-MacBook-Pro:~ brj$ pip3 install mu-editor
Requirement already satisfied: mu-editor in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (1.0.0b15)
Requirement already satisfied: qtconsole==4.3.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (4.3.1)
Requirement already satisfied: pyflakes==1.6.0 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (1.6.0)
Requirement already satisfied: PyQtChart==5.10 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (5.10)
Requirement already satisfied: matplotlib==2.1.2 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (2.1.2)
Requirement already satisfied: pycodestyle==2.3.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (2.3.1)
Requirement already satisfied: qscintilla==2.10.2 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (2.10.2)
Requirement already satisfied: pgzero==1.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (1.1)
Requirement already satisfied: pyserial==3.4 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (3.4)
Requirement already satisfied: pyqt5==5.10 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from mu-editor) (5.10)
Requirement already satisfied: ipykernel>=4.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (4.8.2)
Requirement already satisfied: pygments in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (2.2.0)
Requirement already satisfied: traitlets in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (4.3.2)
Requirement already satisfied: ipython-genutils in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (0.2.0)
Requirement already satisfied: jupyter-client>=4.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (5.2.3)
Requirement already satisfied: jupyter-core in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from qtconsole==4.3.1->mu-editor) (4.4.0)
Requirement already satisfied: pytz in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (2018.4)
Requirement already satisfied: numpy>=1.7.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (1.14.2)
Requirement already satisfied: six>=1.10 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (1.11.0)
Requirement already satisfied: python-dateutil>=2.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (2.7.2)
Requirement already satisfied: cycler>=0.10 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (0.10.0)
Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from matplotlib==2.1.2->mu-editor) (2.2.0)
Requirement already satisfied: pygame>=1.9 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from pgzero==1.1->mu-editor) (1.9.3)
Requirement already satisfied: sip<4.20,>=4.19.4 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from pyqt5==5.10->mu-editor) (4.19.8)
Requirement already satisfied: tornado>=4.0 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (5.0.2)
Requirement already satisfied: ipython>=4.0.0 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (6.3.1)
Requirement already satisfied: decorator in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from traitlets->qtconsole==4.3.1->mu-editor) (4.3.0)
Requirement already satisfied: pyzmq>=13 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from jupyter-client>=4.1->qtconsole==4.3.1->mu-editor) (17.0.0)
Requirement already satisfied: prompt-toolkit<2.0.0,>=1.0.15 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (1.0.15)
Requirement already satisfied: backcall in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.1.0)
Requirement already satisfied: pickleshare in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.7.4)
Requirement already satisfied: simplegeneric>0.8 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.8.1)
Requirement already satisfied: jedi>=0.10 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.12.0)
Requirement already satisfied: appnope; sys_platform == "darwin" in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.1.0)
Requirement already satisfied: pexpect; sys_platform != "win32" in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (4.5.0)
Requirement already satisfied: setuptools>=18.5 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (39.0.1)
Requirement already satisfied: wcwidth in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from prompt-toolkit<2.0.0,>=1.0.15->ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.1.7)
Requirement already satisfied: parso>=0.2.0 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from jedi>=0.10->ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.2.0)
Requirement already satisfied: ptyprocess>=0.5 in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (from pexpect; sys_platform != "win32"->ipython>=4.0.0->ipykernel>=4.1->qtconsole==4.3.1->mu-editor) (0.5.2)
Bos-MacBook-Pro:~ brj$
Bos-MacBook-Pro:~ brj$ mu-editor
-bash: mu-editor: command not found

[carlosperate]

That usually happens when the <python path>/bin directory is not included in your path.

Could you try executing these two lines of code and copy the results here?

echo $PATH  

and

pip3 --version

[brjdk]

sure

Bos-MacBook-Pro:~ brj$ echo $PATH
/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
Bos-MacBook-Pro:~ brj$ pip3 --version
pip 10.0.1 from /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip (python 3.6)
Bos-MacBook-Pro:~ brj$

[carlosperate]

Odd, your python bin directory is in the path, and without installation errors the mu-editor should have been there.

Just to double chec, could you do execute the following as well?

ls /Library/Frameworks/Python.framework/Versions/3.6/bin

Normally there should be a mu-editor file in there, but I guess it's missing.

[brjdk]

hi carlos

here is what i get
Bos-MacBook-Pro:~ brj$ ls /Library/Frameworks/Python.framework/Versions/3.6/bin
2to3 idle3.6 jupyter-kernel miniterm.py pip3 pygmentize python3.6 pyvenv
2to3-3.6 iptest jupyter-kernelspec miniterm.pyc pip3.6 pylupdate5 python3.6-32 pyvenv-3.6
__pycache__ iptest3 jupyter-migrate mu pycodestyle pyrcc5 python3.6-config wheel
easy_install-3.6 ipython jupyter-qtconsole mu-debug pydoc3 python3 python3.6m
f2py ipython3 jupyter-run pgzrun pydoc3.6 python3-32 python3.6m-config
idle3 jupyter jupyter-troubleshoot pip pyflakes python3-config pyuic5
Bos-MacBook-Pro:~ brj$

[carlosperate]

How funny, you've got mu-debug available but no mu-editor.

Maybe try reinstalling:

pip3 uninstall mu-editor
pip3 install mu-editor

Or this one might be quicker instead:

pip3 install --upgrade --no-deps --force-reinstall mu-editor

Then you can check again if mu-editor is present in your python bin directory:

ls /Library/Frameworks/Python.framework/Versions/3.6/bin

[brjdk]

it says that it uses a cached version - is that a problem?
Bos-MacBook-Pro:~ brj$ pip3 install --upgrade --no-deps --force-reinstall mu-editor
Collecting mu-editor
Using cached https://files.pythonhosted.org/packages/a6/8b/991ba5365f19538a9164ce45e7fa844714d76bd00b93cd24216c7f57c9fc/mu_editor-1.0.0b15-py3-none-any.whl
Installing collected packages: mu-editor
Found existing installation: mu-editor 1.0.0b15
Uninstalling mu-editor-1.0.0b15:
Successfully uninstalled mu-editor-1.0.0b15
Successfully installed mu-editor-1.0.0b15
Bos-MacBook-Pro:~ brj$ mu-editor
-bash: mu-editor: command not found
Bos-MacBook-Pro:~ brj$

[carlosperate]

Ups, completely missed the fact that the command is mu, not mu-editor, and that file was already present in your /Library/Frameworks/Python.framework/Versions/3.6/bin before, so it should be there again after the force reinstalled.

Could you try opening Mu by just using the mu command in the termina?

[brjdk]

hi carlos

just tried but got this message

Bos-MacBook-Pro:~ brj$ mu
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.6/bin/mu", line 7, in
from mu.app import run
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/mu/app.py", line 31, in
current_locale, encoding = locale.getdefaultlocale()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 562, in getdefaultlocale
return _parse_localename(localename)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 490, in _parse_localename
raise ValueError('unknown locale: %s' % localename)
ValueError: unknown locale: UTF-8
Bos-MacBook-Pro:~ brj$

[carlosperate]

Yes, that's the same error you were getting when running from source with the command python3 run.py, so it means that the mu command is installed and working "as expected", but that there is a bug in Mu we need to fix.

Btw if you try to run the following line I assume you get the same error printed on the terminal?

python3 -c "import locale;print(locale.getdefaultlocale())"

[brjdk]

i get this error
Bos-MacBook-Pro:~ brj$ python3 -c "import locale;print(locale.getdefaultlocale())"
Traceback (most recent call last):
File "", line 1, in
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 562, in getdefaultlocale
return _parse_localename(localename)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/locale.py", line 490, in _parse_localename
raise ValueError('unknown locale: %s' % localename)
ValueError: unknown locale: UTF-8
Bos-MacBook-Pro:~ brj$

[brjdk]

should i wait for an other build or what should i do?

thanks
jorgensen

[carlosperate]

We'll need to fix this bug in Mu, and at that point you will be able to use Mu running from the latest version of the source code in this repository.

Development of Mu is done by volunteers, and sometimes we don't have as much free time as we would like to work on these things, so it might take a bit of time before we can release a fix, I hope you can understand.

In the meantime, you could try this, and see if this temporarily fixes the problem. On a terminal at the directory where you have the Mu source code:

export LC_ALL=en_GB.UTF-8
python3 run.py

Hopefully that should set up the locale in that terminal session to a value that Python can interpret. It's only temporary to that session, so if you close that terminal you'll have to run the first line again before executing Mu.

[brjdk]

hi carlos
i have the deepest respect for the work you people do - especially as volunteers.
i just didn't know what to do :-)

i will try your workaround.

thanks
jorgensen

[brjdk]

it worked - i entered
export LC_ALL=en_GB.UTF-8
python3 mu

:-)

[ntoll]

Hurrah! :-)

[brjdk]

btw - this version is so cool - really like

• the plotter
• shortcuts
• and no popup when pressing the flash button
  this should be the 'official' version, downloaded from codewith.mu!

so people could enjoy mu even more :-)

[ntoll]

That's the plan... coming soon!

[brjdk]

stupid question, but anyone know if i can add this
export LC_ALL=en_GB.UTF-8
python3 mu

to somekind of shortcut / script on the desktop or elsewhere so i don't need to start the terminal and go to
Library / Frameworks / Python.framework / Versions / 3.6 / bin / to start Mu?

Thanks :-)
Jorgensen

[ukBaz]

@brjdk does this answer your question?
https://www.hastac.org/blogs/joe-cutajar/2015/04/21/how-make-simple-bash-script-mac

[brjdk]

@ukBaz thanks - that did it :-)