Time to update python to the latest version?

@JonB I used "PEP 553, Built-in breakpoint()" and "The insertion-order preservation nature of dict objects" in python 3.7. And I'm sure many people need other new features. And python 3.7 would be better than python 3.6 just like python 3.6 was better than 3.5. Python 2.7.15 is better than python 2.7.12. So why we kept using old versions for SEVERAL YEARS?

@JonB The old modules maybe had many bugs because we can't make sure that we killed all bugs. So we need to update old mudules not just for the new feature. I met some bugs in chardet 2.1.1(2012), while the latest version is 3.0.4. 6 years now, and we are using the outdated modules.

I think pythonista should update modules 0.5time/year at least.

JonB

I guess I just don't see it. I can't think of any security issues that are really likely to be issues for the type of work the typical pythonista user is doing. Most people are not running servers exposed to the world.

Yes, there are some new language features that are nice. What did people do before dict order was preserved? They did not rely on it, and it took a few extra lines of code . It is not like python was unuseful a year ago. It was mature and functional and most updates have been minor improvements.

I can see if you are using other people's code that makes use of new features, it might be annoying.

Chardet is pure python and can be updated via stash. Sure it is annoying, but once you do it you are set.

@JonB I installed chardet via stash. But when I checked version with code "chardet.__version__". It did not work.

@JonB Just like the f-str in python 3.6. You could use others if we still used python 3.5. But if we had python 3.6, we can try new features and improve our code. Besides, I don't think python 3.7 is a small version. If it is, then the version should be python 3.6.x.

JonB

You would need to force quit pythonista. Also you may need to check which site packages it was installed in.

@JonB I used the latest stash and ran it on python 3. I found the new chardet in site-packages-3. But it did not work with "chardet.__version__". (Pythonista had its own chardet already.)

We wrote better code not just runnable code. Python 2 is dying in 2020. And we still use python 2 in 2020? Why don't you try python 3 now? We have a better version and we still use the outdated one. We don't run the code as a server on ipad. We don't run 10000 rows code on ipad. We can try the new features and enjoy the new version.

JonB

>>> import chardet
>>> chardet.__file__
'/private/var/mobile/Containers/Shared/AppGroup/C534C622-2FDA-41F7-AE91-E3AAFE5FFC6B/Pythonista3/Documents/site-packages/chardet/__init__.py'
>>> chardet.__version__
'3.0.4'

You might want to delete the chardet folder, and try install again. Be sure to force quit pythonista after.

Don't get me wrong... if there is a new version that continues to work on ios9.3.5/Ipad3, I'll use it. I just don't feel like there is no use to the app. even without any updates in the future, there is plenty to keep things interesting.

@JonB I'm using pythonista 3.2. And I can't delete the package installed in Pythonista by omz, since it looks like omz did not allow us to do it. When I reopen it, it restores the package.

JonB

You can install the new package in site-packages or site-packages-3, those take precedence over pythonista pylib folder.

Pip in stash might have a -f to force install of a pythonista pre-installed module. There are some thread around about installing chardet, idna, and a few others.

@JonB Thx. But some modules like matplotlib 3.0 which are not pure python modules. So it is still a problem. I hope omz would update these modules and python soon. By the way asyncio had some bugs when the network is unstable.

@JonB I installed chardet in site-package-3, but it seems it did not take precedence over the pre-installed version.

JonB

Did you force quit pythonista?

Try this:
from stash:
ls ~/Documents/site-packages-3/chardet

next, in console:

import sys, chardet
del sys.modules['chardet']
import chardet
print(chardet.__file__)

import sys
print(sys.path)

@JonB How to set module path with code? Like
sys.modules['chardet'] = 'site-package-3/chardet'

JonB

please run the above code, and we will see if chardet was installed, and if not, we can get into why not. the sys path should already be set

@JonB I just del sys.modules[name], then I reinstall the modules using stash. Now it works.

@omz Welcome back! Any plans about updating modules or python?

ohjartat

Hello! Im having the same or a similar issue with requests/chardet/idna dependencies. I tried deleting chardet and restart the app, but my stash seems ”stuck” when I try to reinstall the package (or doing any other operation for that matter). All I get is ”No module named chardet”, even when I run pip install simplegist (as a simple, seemingly unrelated example?)

Any ideas?