Error No module named copy_reg after upgrading web2py

[José Eloy]

Hi there!

I upgraded my web2py source folder (2.9.6) with the most recent version (2.13.4), but when I run my application I get the error: No module named copy_reg. Mi app was running well before the upgrade. I´m runnig my app in Windows Server 2008 R2. The upgrade was made using the administrative interface and copy/paste the new version over the old version.

How can I to fix this error?

Regards.

Sorry for my bad english!  I hope you can understand me.

[Massimo Di Pierro]

which python version? Did you upgrade anything else at the same time? copy_reg is a python module, not a web2py module and you should have it.

[Niphlod]

@jose: you're coming from a really really old version. Unfortunately the folder structure changed, so it's possible that overwriting left some files that shouldn't be there. Assuming you installed web2py in c:\web2py, please do the following:

- copy your applications/ dir (c:\web2py\applications) to somewhere safe (e.g. your desktop)

- delete everything in the web2py folder (leaving c:\web2py completely empty)

- download the latest version

- decompress the archive in the installation folder (so you have c:\web2py\web2py.py)

- copy your applications/ over, except welcome and admin

@massimo: he's probably in the same pickle other found themselves when upgrading for the different structure. IMHO "upgrade now" button needs to be dropped until a solid upgrade scheme is found: it has been discussed over and over and a decision was never made. Finally, we should really look into releasing web2py to pypi.

[Massimo Di Pierro]

I agree with web2py in pipy. I think removing the upgrade button would not be helpful. Users of old version would still have a broken button.

[Niphlod]

On Friday, January 15, 2016 at 1:51:24 PM UTC+1, Massimo Di Pierro wrote:

I agree with web2py in pipy. I think removing the upgrade button would not be helpful. Users of old version would still have a broken button.

Ehm.... "Yeay, let's not remove a broken thing because previous builds included the same broken thing"   ? ? ? 

[Massimo Di Pierro]

it is not broken today. We can replace it with something better. Until then we can be careful and make sure it works. And even if it does not work 100% of the times, it is better than nothing.

[Simon Ashley]

Having a similar issue this morning.

OS: windows 10.

Python distribution: Anaconda

Have an older project under version 2.9.11 / 214.09.15.23.35.11 which runs OK

Have downloaded a fresh copy of web2py from source this morning, and installed in a freshly created directory (c:\w2p_12 rather than c:\web2py).

Copied the application from the original folder to c:\w2p_12\applications\

Version

web2py™	Version 2.13.4-stable+timestamp.2015.12.26.04.59.39
Python	Python 2.7.10: C:\Anaconda\pythonw.exe (prefix: C:\Anaconda)

Traceback

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.

Traceback (most recent call last): File "C:\w2p_12\gluon\restricted.py", line 227, in restricted exec ccode in environment File "C:/w2p_12/applications/csm02_4/models/db_ship.py", line 204, in <module> db.charge.id.writable = db.charge.id.readable = False File "C:\Anaconda\lib\site-packages\pydal\base.py", line 920, in __getattr__ return self.lazy_define_table(tablename, *fields, **args) File "C:\Anaconda\lib\site-packages\pydal\base.py", line 873, in lazy_define_table polymodel=polymodel) File "C:\Anaconda\lib\site-packages\pydal\adapters\base.py", line 500, in create_table sql_fields_old = pickle.load(tfile) File "C:\w2p_12\gluon\custom_import.py", line 95, in custom_importer return base_importer(pname, globals, locals, fromlist, level) ImportError: No module named copy_reg