Thank you all, I've finally resolved by using io.open() for the encode problem, and by putting the message in the redirect for bypassing the session.forget() command.
Nico Il giorno ven 12 ott 2018 alle ore 21:34 Dave S <snidely....@gmail.com> ha scritto: > > > On Friday, October 12, 2018 at 2:52:44 AM UTC-7, Nico Zanferrari wrote: >> >> Hi Dave! >> >> On >> https://github.com/web2py/web2py-book/blob/master/controllers/default.py >> the session.forget() command is on line 10 - and I suppose it's quite >> necessary. >> >> > I wonder if that's for development, like uncommenting the hack in > calc_date() a little below there. > > >> If I change the convert2html function in order to test for import errors: >> >> try: >> from pygments import highlight as pygments_highlight >> from pygments.lexers import PythonLexer as pygments_PythonLexer >> from pygments.formatters import HtmlFormatter as >> pygments_HtmlFormatter >> except (ModuleNotFoundError, ImportError) as e: >> session.flash = T('Requires pygments module, but it is not >> installed - %s' % e) >> redirect(URL('index')) >> >> The FLASH message is never displayed, unless I comment line 10. >> >> > And request.flash gets flushed by the redirect, IIRC. > > As a fresh hack, put the message in the URL of the redirect, and look for > it in index(), and sanitize it into request.flash. > > /dps > > > >> >> >> Il giorno ven 12 ott 2018 alle ore 11:17 Dave S <snide...@gmail.com> ha >> scritto: >> >>> >>> >>> On Thursday, October 11, 2018 at 1:29:04 PM UTC-7, Nico Zanferrari wrote: >>>> >>>> Thank you Ben, >>>> >>>> I was looking at the same official page ;-) >>>> It seems that using the io module is the way to go, and it's already >>>> used in pymysql . I'm testing it. >>>> >>>> Nobody has suggestions about the session.foget() and session.flash >>>> message? >>>> >>>> thank you, >>>> nico >>>> >>>> >>> Where is the session.forget() call? Is it part of the error path? Or >>> did you set up your index() function to do that> >>> >>> /dps >>> >>> >>>> Il giorno gio 11 ott 2018 alle ore 17:35 Ben Duncan <linu...@gmail.com> >>>> ha scritto: >>>> >>>>> Also found this: >>>>> >>>>> http://python-future.org/compatible_idioms.html >>>>> >>>>> On Thu, Oct 11, 2018 at 10:30 AM Ben Duncan <linu...@gmail.com> wrote: >>>>> >>>>>> Try These suggestions: >>>>>> >>>>>> >>>>>> https://stackoverflow.com/questions/491921/unicode-utf-8-reading-and-writing-to-files-in-python/844443 >>>>>> http://www.evanjones.ca/python-utf8.html >>>>>> >>>>>> >>>>>> On Thu, Oct 11, 2018 at 9:38 AM Nico Zanferrari <nico...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> the encode-decode problem on question 1 is mostly related to the >>>>>>> opening of files. For example: >>>>>>> >>>>>>> filename = os.path.join(FOLDER, subfolder, 'chapters.txt') >>>>>>> if PY2: >>>>>>> lines = open(filename) >>>>>>> else: >>>>>>> lines = open(filename, encoding='utf-8') >>>>>>> >>>>>>> In PY2 there is no option for the encoder, while on PY3 it is >>>>>>> mandatory. >>>>>>> >>>>>>> I'm still learning, too ;-) >>>>>>> Nico >>>>>>> >>>>>>> >>>>>>> Il giorno gio 11 ott 2018 alle ore 16:16 Ben Duncan < >>>>>>> linu...@gmail.com> ha scritto: >>>>>>> >>>>>>>> Exactly what are you running into? >>>>>>>> >>>>>>>> I ran into this with my rewrite of of extract >>>>>>>> extract_pgsql_models.py: >>>>>>>> ...... >>>>>>>> f['type'] = "'decimal({},{})'".format(f['precision'],f['scale']) >>>>>>>> had to become >>>>>>>> f['type'] = "'decimal({0},{1})'".format(f['precision'],f['scale']) >>>>>>>> >>>>>>>> And so one. >>>>>>>> >>>>>>>> The changes work across Python 2.7 and 3.6 seamlessly now ... >>>>>>>> >>>>>>>> FWIW, I'm just making the transition to Python 3,6 so I'm learning >>>>>>>> things the hard way ... >>>>>>>> >>>>>>>> Ben Duncan >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Oct 10, 2018 at 4:02 PM Nico Zanferrari <nico...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Hello, >>>>>>>>> >>>>>>>>> I'm playing with the web2py-book app, in order to make it python 3 >>>>>>>>> compatible and also to improve it a bit. I have a couple of questions >>>>>>>>> related to default.py: >>>>>>>>> >>>>>>>>> 1. there were some encode-decode errors. I was able to resolve >>>>>>>>> them (see https://github.com/nicozanf/web2py-book for a preview) >>>>>>>>> but I was forced to use many "IF PY2 / else" conditions, in order to >>>>>>>>> preserve python 2.7 compatibility. Is there a more elegant and >>>>>>>>> pythonic >>>>>>>>> solution to manage this and similar situations? >>>>>>>>> >>>>>>>>> 2. I've added a try/except condition, in order to catch a missing >>>>>>>>> library (pygments). It works fine, but the session.flash error >>>>>>>>> message is >>>>>>>>> not displayed at all because it's followed by a redirect to index >>>>>>>>> itself >>>>>>>>> and there is a session.forget() on the top that cleans it. If I >>>>>>>>> comment the >>>>>>>>> session.forget() the flash message is correctly displayed. What can I >>>>>>>>> do? >>>>>>>>> >>>>>>>>> Cheers, >>>>>>>>> Nico >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Resources: >>>>>>>>> - http://web2py.com >>>>>>>>> - http://web2py.com/book (Documentation) >>>>>>>>> - http://github.com/web2py/web2py (Source code) >>>>>>>>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>>>>>>>> --- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "web2py-users" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to web2py+un...@googlegroups.com. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> -- >>>>>>>> Resources: >>>>>>>> - http://web2py.com >>>>>>>> - http://web2py.com/book (Documentation) >>>>>>>> - http://github.com/web2py/web2py (Source code) >>>>>>>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>>>>>>> --- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "web2py-users" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to web2py+un...@googlegroups.com. >>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>> >>>>>>> -- >>>>>>> Resources: >>>>>>> - http://web2py.com >>>>>>> - http://web2py.com/book (Documentation) >>>>>>> - http://github.com/web2py/web2py (Source code) >>>>>>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "web2py-users" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to web2py+un...@googlegroups.com. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> -- >>>>> Resources: >>>>> - http://web2py.com >>>>> - http://web2py.com/book (Documentation) >>>>> - http://github.com/web2py/web2py (Source code) >>>>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "web2py-users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to web2py+un...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>> Resources: >>> - http://web2py.com >>> - http://web2py.com/book (Documentation) >>> - http://github.com/web2py/web2py (Source code) >>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "web2py-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to web2py+un...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > Resources: > - http://web2py.com > - http://web2py.com/book (Documentation) > - http://github.com/web2py/web2py (Source code) > - https://code.google.com/p/web2py/issues/list (Report Issues) > --- > You received this message because you are subscribed to the Google Groups > "web2py-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to web2py+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
