🌐 Mailman 3 February 2017 - Python-list - python.org

Writing an assembler in Python
by Giorgos Tzampanakis June 20, 2018

June 20, 2018

I'm implementing a CPU that will run on an FPGA. I want to have a (dead) simple assembler that will generate the machine code for me. I want to use Python for that. Are there any libraries that can help me with the parsing of the assembly code?

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how to handle captcha through machanize module or any module
by Jai May 29, 2018

May 29, 2018

please do replay how to handle captcha through machanize module

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Re: test
by Mark H Harris March 12, 2018

March 12, 2018

On 3/16/14 5:07 AM, Chris “Kwpolska” Warrick wrote: > Why not use the mailing list instead? It’s a much easier way to > access this place. I prefer to 'pull' rather than receive the 'push'. The newsreader idea is better because threading works better, and because the interface is simpler. I don't know, just preference I guess. I am active on several mailing lists also; they only have list servers (not news Usenet server). The Usenet news reader concept must be fading away, and many isp(s) are not providing the nntp post service these days (Charter stopped it in late 2011). There are still several free post servers out there that do not require registration (some are free but do require registration). What are most active pythoniacs doing with this these days? (beats me)

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Why there is no "setdefaultencoding" in sys module?
by crow Feb. 15, 2018

Feb. 15, 2018

Hi, everyone I'm a new hand at python. I tried to set system default encoding by using "import sys; sys.setdefaultencoding('utf-f')", but I got error message: >>> sys.setdefaultencoding('utf-8') Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'module' object has no attribute 'setdefaultencoding' Then I checked dir(sys), seems there was no function named "setdefaultencoding" in "sys" module. But in python's document, it said I should use sys.setdefaultencoding. So, my questions: why there is no setdefaultencoding in sys module? if I want to change system's default encoding, what should I do? Thanks in advance

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Compression of random binary data
by jonas.thornvall＠gmail.com Jan. 28, 2018

Jan. 28, 2018

What kind of statistic law or mathematical conjecture or is it even a physical law is violated by compression of random binary data? I only know that Shanon theorised it could not be done, but were there any proof? What is to say that you can not do it if the symbolic representation is richer than the symbolic represenatation of the dataset. Isn't it a fact that the set of squareroots actually depict numbers in a shorter way than their actual representation. Now the inpretator or program must know the rules. And i have very good rules to make it happen.

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merits of Lisp vs Python
by Mark Tarver Jan. 12, 2018

Jan. 12, 2018

How do you compare Python to Lisp? What specific advantages do you think that one has over the other? Note I'm not a Python person and I have no axes to grind here. This is just a question for my general education. Mark

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Why "flat is better than nested"?
by kj Dec. 22, 2017

Dec. 22, 2017

In "The Zen of Python", one of the "maxims" is "flat is better than nested"? Why? Can anyone give me a concrete example that illustrates this point? TIA! ~kj PS: My question should not be construed as a defense for "nested". I have no particular preference for either flat or nested; it all depends on the situation; I would have asked the same question if the maxim had been "nested is better than flat".

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Python GUI application embedding a web browser - Options?
by Paul Moore Dec. 14, 2017

Dec. 14, 2017

I'm looking to write a GUI application in Python (to run on Windows, using Python 3.5). The application is just a relatively thin wrapper around a browser - it's presenting an existing web application, just in its own window rather than in a standard browser window. I'm looking for advice on a good GUI toolkit to use. I've not done much GUI programming in Python, so I don't have a "preferred toolkit" as such. A bit of Google searching found an embedded browser widget in PyQt, but the examples I tried didn't work - it looks like the QWebView class is deprecated and has been removed in the current version of PyQt. I haven't really found any other examples (there's a "embedding a web page in Tkinter" example I found, but it looks like it's just doing rendering, not embedding a full browser - which I need as the site I want to access uses CSS/JavaScript). Is there any good option for this, or would I be better looking elsewhere for a solution? I could probably work out how to knock something up using .NET, or a HTA file, for example, I'm just more comfortable coding in Python. Thanks, Paul

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Re: urllib2 urlopen takes too much time
by aahz＠pythoncraft.com Dec. 3, 2017

Dec. 3, 2017

In article <mailman.1916.1245600033.8015.python-list(a)python.org>, =?UTF-8?Q?Filip_Gruszczy=C5=84ski?= <gruszczy(a)gmail.com> wrote: > >I have encountered a performance problem using suds, which was traced >down to _socket.recv. I am calling some web services and each of them >uses about 0.2 sec and 99% of this time is spent on urllib2.urlopen, >while the rest of the call is finished in milliseconds. What happens if you use urlopen() by itself? -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "as long as we like the same operating system, things are cool." --piranha

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How to add months to a date (datetime object)?
by tinnews＠isbd.co.uk Nov. 22, 2017

Nov. 22, 2017

I have a date in the form of a datetime object and I want to add (for example) three months to it. At the moment I can't see any very obvious way of doing this. I need something like:- myDate = datetime.date.today() inc = datetime.timedelta(months=3) myDate += inc but, of course, timedelta doesn't know about months. I had a look at the calendar object but that didn't seem to help much. -- Chris Green

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