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

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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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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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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Re: PySide window does not resize to fit screen
by wxjmfauth＠gmail.com Nov. 14, 2017

Nov. 14, 2017

Le lundi 5 octobre 2015 12:51:31 UTC+2, Laura Creighton a écrit : > In a message of Mon, 05 Oct 2015 01:18:33 -0700, Hedieh Ebrahimi writes: > >Could you recommend any free designer software that I can create my user interface with? > > > >Thank you > > Qt Designer works with PySide. > http://doc.qt.io/qt-5/designer-quick-start.html > > Laura And PySide does not work properly with Python 3.3+.

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ANN: obfuscate 0.2.2
by Steven D'Aprano Nov. 14, 2017

Nov. 14, 2017

I am pleased to announce the first stable release of obfuscate, version 0.2.2. http://pypi.python.org/pypi/obfuscate/ obfuscate is a pure-Python module providing classical encryption algorithms suitable for obfuscating and unobfuscating text. This is a maintenance release of back-end and API changes but no new ciphers. This should be considered the first stable API for obfuscate. obfuscate includes the following ciphers: - rot13, rot5, rot18, rot47 - atbash - Caesar cipher - Keyword - Affine - Playfair, Playfair6, Playfair16 - frob (xor) - Vigenere - RailFence - plus others. DISCLAIMER: obfuscate is not cryptographically strong, and should not be used where high security is required. obfuscate is released under the MIT licence. Requires Python 2.5 or 2.6. -- Steven

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What use of string module?
by fl Sept. 18, 2017

Sept. 18, 2017

Hi, I read the online help about string. It lists string constants, string formatting, template strings and string functions. After reading these, I am still puzzled about how to use the string module. Could you show me a few example about this module? Thanks

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Best way to insert sorted in a list
by SherjilOzair Sept. 8, 2017

Sept. 8, 2017

There are basically two ways to go about this. One is, to append the new value, and then sort the list. Another is to traverse the list, and insert the new value at the appropriate position. The second one's complexity is O(N), while the first one's is O(N * log N). Still, the second one works much better, because C code is being used instead of pythons. Still, being a programmer, using the first way (a.insert(x); a.sort()), does not feel right. What has the community to say about this ? What is the best (fastest) way to insert sorted in a list ?

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Changing filenames from Greeklish => Greek (subprocess complain)
by Νικόλαος Κούρας Sept. 6, 2017

Sept. 6, 2017

/home/nikos/public_html/cgi-bin/metrites.py in () 217 template = htmldata + counter 218 elif page.endswith('.py'): => 219 htmldata = subprocess.check_output( '/home/nikos/public_html/cgi-bin/' + page ) 220 template = htmldata.decode('utf-8').replace( 'Content-type: text/html; charset=utf-8', '' ) + counter 221 htmldata undefined, subprocess = <module 'subprocess' from '/opt/python3/lib/python3.3/subprocess.py'>, subprocess.check_output = <function check_output>, page = 'files.py' /opt/python3/lib/python3.3/subprocess.py in check_output(timeout=None, *popenargs=('/home/nikos/public_html/cgi-bin/files.py',), **kwargs={}) 584 retcode = process.poll() 585 if retcode: => 586 raise CalledProcessError(retcode, process.args, output=output) 587 return output 588 global CalledProcessError = <class 'subprocess.CalledProcessError'>, retcode = 1, process = <subprocess.Popen object>, process.args = '/home/nikos/public_html/cgi-bin/files.py', output = b'Content-type: text/html; charset=utf-8\n\n<bod...n position 74: surrogates not allowed\n\n-->\n\n' CalledProcessError: Command '/home/nikos/public_html/cgi-bin/files.py' returned non-zero exit status 1 args = (1, '/home/nikos/public_html/cgi-bin/files.py') cmd = '/home/nikos/public_html/cgi-bin/files.py' output = b'Content-type: text/html; charset=utf-8\n\n<bod...n position 74: surrogates not allowed\n\n-->\n\n' returncode = 1 with_traceback = <built-in method with_traceback of CalledProcessError object> The above error message happened when i tried to reanme one of my filenames from its greeklish name to greek charcters. files.py is a script that allows users to downlaod fiels form my server. But i wish to presnt filename sin Greek and not in Greeklish http://superhost.gr/?page=files.py as it is now. What can i do to make pth script accept greek filenames too? Why does subprocess is complaining?

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