🌐 Mailman 3 September 2016 - Python-list - python.org

Extend unicodedata with a name/pattern/regex search for character entity references?
by Veek. M Sept. 10, 2016

Sept. 10, 2016

https://mail.python.org/pipermail//python-ideas/2014-October/029630.htm Wanted to know if the above link idea, had been implemented and if there's a module that accepts a pattern like 'cap' and give you all the instances of unicode 'CAP' characters. ⋂ \bigcap ⊓ \sqcap ∩ \cap ♑ \capricornus ⪸ \succapprox ⪷ \precapprox (above's from tex) I found two useful modules in this regard: unicode_tex, unicodedata but unicodedata is a builtin which does not do globs, regexs - so it's kind of limiting in nature. Would be nice if you could search html/xml character entity references as well.

6 7

How to diagnose CERTIFICATE_VERIFY_FAILED on Windows for websites working in browsers?
by Chi Hsuan Yen Sept. 10, 2016

Sept. 10, 2016

Hi Python enthusiasts, I'm working on youtube-dl, a handy tool for downloading videos from various websites. There are occasional bug reports with SSL error CERTIFICATE_VERIFY_FAILED when people are trying to download videos from youtube.com [1] or dailymotion.com [2]. The issue about youtube.com turned out to be expired intermediate CA certificates. Some users report that there's one or more expired "Google Internet Authority G2" certificate on their machines. Apparently OpenSSL verifies the whole certificate chain and report an error as soon as it finds an invalid certificate in the chain. My questions is: how to tell from several possible causes to CERTIFICATE_VERIFY_FAILED? Currently both expired self signed certificate leads to CERTIFICATE_VERIFY_FAILED. Thanks for any help or advice. Best, Yen Chi Hsuan [1] https://github.com/rg3/youtube-dl/issues/7309 [2] https://github.com/rg3/youtube-dl/issues/10574

3 8

Re: What you can do about legalese nonsense on email (was: How to split value where is comma ?)
by Steve D'Aprano Sept. 10, 2016

Sept. 10, 2016

On Fri, 9 Sep 2016 08:13 am, Grant Edwards wrote: > After all, that boilerplate just makes the corporation look stupid and > incompetent. I wish that were true. Unfortunately, in the corporate world, it *doesn't* make them look stupid and incompetent. It makes them look conventional, careful, diligent and responsible, and depending on how it is worded, perhaps even a little scary: "We say that we care about the confidentiality of what we do. Don't mess with us, because we have a lawyer and aren't afraid to use it!" To a certain type of mindset, failure to include that boilerplate would look stupid and incompetent. Even if it is a legal bluff, it may discourage some people from misusing the email or forwarding it on, a bit like the legal equivalent of fake security cameras that look like the real thing but don't actually work. And I doubt it is being driven by lawyers, who surely know how dubious this is. Its not lawyers who insist on adding restraint of trade and non-compete clauses that they know won't stand up in court, and I doubt it is lawyers insisting on this boiler plate. But then lawyers will also know that there's no (legal) harm done by including the message: within fairly broad limits, they can *say* anything they like. "If you are not the intended recipient, stop reading immediately and seek medical attention. If you read this email without approval, you will suffer a severe and irreversible brain embolism." And besides, I wouldn't be *entirely* sure that it is nothing but a bluff, particularly when wealthy corporations are involved. Privacy and confidentiality are intangibles where the result can depend on all sorts of factors, such as how deep the pockets of the plaintiff are, and whether the government of the day wants to defend or attack freedom of speech and/or privacy. Or even outright legal fraud, which is how we got corporations considered to be legal persons. -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse.

1 0

How do I automatically download files from a pop up dialog using selenium-python?
by John Sept. 10, 2016

Sept. 10, 2016

Please help. Thanks.

1 0

how to set paramiko to use ssh version 1?
by meInvent bbird Sept. 9, 2016

Sept. 9, 2016

how to set paramiko to use ssh version 1?

2 1

Re: How to extend a tuple of tuples?
by Lawrence D’Oliveiro Sept. 9, 2016

Sept. 9, 2016

On Saturday, September 10, 2016 at 12:21:48 AM UTC+12, Frank Millman wrote: > The short answer is that I am using it as a dictionary key. Another option is, if it takes several steps to construct the tuple, to build it incrementally as a list and then cast it to a tuple.

1 0

Re: PEP suggestion: Uniform way to indicate Python language version
by Steve D'Aprano Sept. 9, 2016

Sept. 9, 2016

On Tue, 23 Aug 2016 12:29 am, Random832 wrote: > Receiving a SyntaxError or whatever other exception, which provides no > suggestion about how to actually fix the issue (install a later version > of python / run with "python3" instead of "python"), is a bad user > experience. Er wot? If I run the following code in Python 3.4: x:int = spam.method(?) - 1 how is the 3.4 interpreter supposed to know when the x:int and the (?) syntax were introduced? I can tell you when x:int is introduced (Python 3.6) but I have no idea when (?) will be introduced, or what it will mean. > It will continue to be a bad user experience when people are > using features that only work on python 5.0 and later and other people > are trying to run their scripts under python 4.0, Suppose that version 4.5 introduces |: syntax and version 4.8 removes it again because it was a terrible idea. And 4.9 introduces unless expressions. I write this: x = spam |: eggs unless ValueError then cheese What syntax error should Python 4.0 give? -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse.

1 0

Re: PEP suggestion: Uniform way to indicate Python language version
by Lawrence D’Oliveiro Sept. 9, 2016

Sept. 9, 2016

On Tuesday, August 23, 2016 at 2:30:10 AM UTC+12, Random832 wrote: > Receiving a SyntaxError or whatever other exception, which provides no > suggestion about how to actually fix the issue (install a later version > of python / run with "python3" instead of "python"), is a bad user > experience. When people say “user experience”, that immediately brings to mind the kinds of long-winded messages that Microsoft Windows might put out, that nobody pays attention to, because in trying to be “friendly” and “approachable” they become effectively meaningless. At least the SyntaxError exception, with traceback, will give you some details about what went wrong. The “user” having the “experience” doesn’t need to understand the message to be able to copy and paste it into a bug report, and the developer(s) will then have some information to at least make a start on figuring out the problem.

1 0

Re: PEP 492: isn't the "await" redundant?
by Lawrence D’Oliveiro Sept. 9, 2016

Sept. 9, 2016

On Saturday, September 10, 2016 at 12:39:04 AM UTC+12, Chris Angelico wrote: > In contrast, you want to use threads if you need the ability to > quickly and easily share mutable data, or if you want all resource > usage to be lumped together - eg if you're not really doing several > separate jobs, but are doing one single conceptual job. Multiple processes are usually preferable to multiple threads. The default-shared-nothing memory model is less bug-prone than default-shared-everything. Think of every time you use “&” and “|” in a shell command line: you are creating multiple processes, and yet they are doing a “single conceptual job”.

1 0

Is it possible to process dist files before they are build via a setuptools hook?
by Mark Summerfield Sept. 9, 2016

Sept. 9, 2016

Hi, I use setuptools (in my case with cx_Freeze) to package some of my Python applications. As part of this process a build\exe.win-amd64-3.4 dir is created with all the necessary files, and then a separate dist\ dir is created with the distributable package (e.g., a .msi file). I'd like to run UPX https://upx.github.io/ on all the .dll, .py, and .exe files in the build dir _before_ they are put into the distributable package. So, I need to have some hook that lets me run a python script after the build dir has been populated but before the distributable is made -- is this possible? Thanks.

2 1