Hello,
When I run this script[1] on my own machine it runs without any problem. When I run it on Labs, I get an invalid syntax error, pasted below. Can you please help me figure out why?
Thanks!
(venv)tools.huji@tools-bastion-03:~$ python core/pwb.py webcite -page:"SOME PAGE" Traceback (most recent call last): File "core/pwb.py", line 253, in <module> if not main(): File "core/pwb.py", line 246, in main run_python_file(filename, [filename] + args, argvu, file_package) File "core/pwb.py", line 114, in run_python_file exec(compile(source, filename, "exec", dont_inherit=True), File "core/scripts/userscripts/webcite.py", line 125 faCitationPattern = ur'{{\s*یادکرد(?:{{.*?}}|.)*?}}'
[1] https://github.com/PersianWikipedia/fawikibot/blob/master/webcite.py
What are the versions of Python involved?
On Sun, 19 Aug 2018 at 21:34, Huji Lee huji.huji@gmail.com wrote:
Hello,
When I run this script[1] on my own machine it runs without any problem. When I run it on Labs, I get an invalid syntax error, pasted below. Can you please help me figure out why?
Thanks!
(venv)tools.huji@tools-bastion-03:~$ python core/pwb.py webcite -page:"SOME PAGE" Traceback (most recent call last): File "core/pwb.py", line 253, in <module> if not main(): File "core/pwb.py", line 246, in main run_python_file(filename, [filename] + args, argvu, file_package) File "core/pwb.py", line 114, in run_python_file exec(compile(source, filename, "exec", dont_inherit=True), File "core/scripts/userscripts/webcite.py", line 125 faCitationPattern = ur'{{\s*یادکرد(?:{{.*?}}|.)*?}}'
[1] https://github.com/PersianWikipedia/fawikibot/blob/master/webcite.py _______________________________________________ Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Excellent question. On my own computer, I am using 2.7.12 but on labs it is 3.4.3
Of note, when I changed my code such that all cases of *ur'...'* now read *u'...' *the script worked in both environments. So it has to do with how escaping works in python, I guess. But I am not sure.
On Sun, Aug 19, 2018 at 4:48 PM Alex Monk krenair@gmail.com wrote:
What are the versions of Python involved?
On Sun, 19 Aug 2018 at 21:34, Huji Lee huji.huji@gmail.com wrote:
Hello,
When I run this script[1] on my own machine it runs without any problem. When I run it on Labs, I get an invalid syntax error, pasted below. Can you please help me figure out why?
Thanks!
(venv)tools.huji@tools-bastion-03:~$ python core/pwb.py webcite -page:"SOME PAGE" Traceback (most recent call last): File "core/pwb.py", line 253, in <module> if not main(): File "core/pwb.py", line 246, in main run_python_file(filename, [filename] + args, argvu, file_package) File "core/pwb.py", line 114, in run_python_file exec(compile(source, filename, "exec", dont_inherit=True), File "core/scripts/userscripts/webcite.py", line 125 faCitationPattern = ur'{{\s*یادکرد(?:{{.*?}}|.)*?}}'
[1] https://github.com/PersianWikipedia/fawikibot/blob/master/webcite.py _______________________________________________ Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Hi Huji,
It does look like the difference in Python versions is the problem. The Python 3 docs https://docs.python.org/3/reference/lexical_analysis.html say:
Both string and bytes literals may optionally be prefixed with a letter 'r'
or 'R'; such strings are called *raw strings* and treat backslashes as literal characters. As a result, in string literals, '\U' and '\u' escapes in raw strings are not treated specially. *Given that Python 2.x’s raw unicode literals behave differently than Python 3.x’s the 'ur' syntax is not supported.*
So the syntax you tried to use is indeed invalid. I don't really know what the exact difference is between Python 2 and Python 3 raw Unicode literals, but since in Python 3 literal strings are always taken as Unicode, you can probably just use *r'...'* for your regular expression and settle on Python 3 for both local development and on Toolforge.
Hope this helps!
2018-08-19 21:57 GMT+01:00 Huji Lee huji.huji@gmail.com:
Excellent question. On my own computer, I am using 2.7.12 but on labs it is 3.4.3
Of note, when I changed my code such that all cases of *ur'...'* now read *u'...' *the script worked in both environments. So it has to do with how escaping works in python, I guess. But I am not sure.
On Sun, Aug 19, 2018 at 4:48 PM Alex Monk krenair@gmail.com wrote:
What are the versions of Python involved?
On Sun, 19 Aug 2018 at 21:34, Huji Lee huji.huji@gmail.com wrote:
Hello,
When I run this script[1] on my own machine it runs without any problem. When I run it on Labs, I get an invalid syntax error, pasted below. Can you please help me figure out why?
Thanks!
(venv)tools.huji@tools-bastion-03:~$ python core/pwb.py webcite -page:"SOME PAGE" Traceback (most recent call last): File "core/pwb.py", line 253, in <module> if not main(): File "core/pwb.py", line 246, in main run_python_file(filename, [filename] + args, argvu, file_package) File "core/pwb.py", line 114, in run_python_file exec(compile(source, filename, "exec", dont_inherit=True), File "core/scripts/userscripts/webcite.py", line 125 faCitationPattern = ur'{{\s*یادکرد(?:{{.*?}}|.)*?}}'
[1] https://github.com/PersianWikipedia/fawikibot/ blob/master/webcite.py _______________________________________________ Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Fair enough. I should have switched to python 3 for my local environment a long while ago anyway, and this gives me one more reason to do so. Thank you both! Huji
On Sun, Aug 19, 2018 at 6:07 PM Guilherme Gonçalves < guilherme.p.gonc@gmail.com> wrote:
Hi Huji,
It does look like the difference in Python versions is the problem. The Python 3 docs https://docs.python.org/3/reference/lexical_analysis.html say:
Both string and bytes literals may optionally be prefixed with a letter
'r' or 'R'; such strings are called *raw strings* and treat backslashes as literal characters. As a result, in string literals, '\U' and '\u' escapes in raw strings are not treated specially. *Given that Python 2.x’s raw unicode literals behave differently than Python 3.x’s the 'ur' syntax is not supported.*
So the syntax you tried to use is indeed invalid. I don't really know what the exact difference is between Python 2 and Python 3 raw Unicode literals, but since in Python 3 literal strings are always taken as Unicode, you can probably just use *r'...'* for your regular expression and settle on Python 3 for both local development and on Toolforge.
Hope this helps!
2018-08-19 21:57 GMT+01:00 Huji Lee huji.huji@gmail.com:
Excellent question. On my own computer, I am using 2.7.12 but on labs it is 3.4.3
Of note, when I changed my code such that all cases of *ur'...'* now read *u'...' *the script worked in both environments. So it has to do with how escaping works in python, I guess. But I am not sure.
On Sun, Aug 19, 2018 at 4:48 PM Alex Monk krenair@gmail.com wrote:
What are the versions of Python involved?
On Sun, 19 Aug 2018 at 21:34, Huji Lee huji.huji@gmail.com wrote:
Hello,
When I run this script[1] on my own machine it runs without any problem. When I run it on Labs, I get an invalid syntax error, pasted below. Can you please help me figure out why?
Thanks!
(venv)tools.huji@tools-bastion-03:~$ python core/pwb.py webcite -page:"SOME PAGE" Traceback (most recent call last): File "core/pwb.py", line 253, in <module> if not main(): File "core/pwb.py", line 246, in main run_python_file(filename, [filename] + args, argvu, file_package) File "core/pwb.py", line 114, in run_python_file exec(compile(source, filename, "exec", dont_inherit=True), File "core/scripts/userscripts/webcite.py", line 125 faCitationPattern = ur'{{\s*یادکرد(?:{{.*?}}|.)*?}}'
[1] https://github.com/PersianWikipedia/fawikibot/blob/master/webcite.py _______________________________________________ Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
-- Guilherme P. Gonçalves _______________________________________________ Wikimedia Cloud Services mailing list Cloud@lists.wikimedia.org (formerly labs-l@lists.wikimedia.org) https://lists.wikimedia.org/mailman/listinfo/cloud
On Mon, Aug 20, 2018 at 3:09 AM Huji Lee huji.huji@gmail.com wrote:
Fair enough. I should have switched to python 3 for my local environment a long while ago anyway, and this gives me one more reason to do so. Thank you both!
This is a good opportunity to encourage everybody to abandon Python 2 ASAP: https://pythonclock.org/