🌐 Mailman 3 December 2014 - Python-list - python.org

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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ANN: obfuscate 0.2.2
by Steven D'Aprano Nov. 13, 2017

Nov. 13, 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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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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copy locked files
by rubbishemail＠web.de Aug. 31, 2017

Aug. 31, 2017

Hello, do you know of any way to copy locked / opened files under win xp? I know there is something like "Volume Shadow Copy" but I don't know how to use it. Maybe someone already has a python solution? Many thanks Daniel

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Feature suggestion -- return if true
by zildjohn01 Aug. 25, 2017

Aug. 25, 2017

This is an idea I've had bouncing around in my head for a long time now. I propose the following syntax: return? expr be expanded to _temp = expr if _temp: return _temp It's a pattern I use all the time in my code, and although it's a bit unorthodox, IMO it's concise, readable, and easily understandable. Thoughts?

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July 13, 2017

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Passing arguments to & executing, a python script on a remote machine from a python script on local machine (using ssh ?)
by ashish June 9, 2017

June 9, 2017

Hi c.l.p folks Here is my situation 1. I have two machines. Lets call them 'local' & 'remote'. Both run ubuntu & both have python installed 2. I have a python script, local.py, running on 'local' which needs to pass arguments ( 3/4 string arguments, containing whitespaces like spaces, etc ) to a python script, remote.py running on 'remote' (the remote machine). I have the following questions: 1. What's the best way to accomplish my task ? I have researched quite a bit & pretty much everybody is using ssh. After googling a bunch, most people are using very complex workarounds to do this sort of thing. I googled & found people using several libraries to accomplish ssh to remote machine & execute a command on remote machine. paramiko ( now forked into the ssh moduke), fabric, pushy ,etc People who have used any of these libraries, which one would you recommend, as the most apt (simple & easy to use, lightweight, best performance, etc) for my situation ? 2. I would prefer a solution, which does NOT require the installation of extra libraries on the local & remote machines. If installing external librar 3. Has anybody been able to do this using os.system ? I tried this >>> import os >>> os.system ("ssh remoteuser@remote python remote.py arg1 arg2 arg3") This worked, but if the arguments i tried to pass, had spaces, i was not able to 'escape' the spaces. Any & all explanations/links/code snippets/thoughts/ideas/suggestions/feedback/comments/ of the Python tutor community would be greatly appreciated. Thanks a ton cheers ashish email : ashish.makani domain:gmail.com “The only way to do great work is to love what you do. If you haven’t found it yet, keep looking. Don’t settle. As with all matters of the heart, you’ll know when you find it.” - Steve Jobs (1955 - 2011)

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perl + python tutorial available for download
by Xah May 7, 2017

May 7, 2017

my perl and python tutorial http://xahlee.org/perl-python/index.html is now available for download for offline reading. Download link at the bottom. Xah ∑ http://xahlee.org/ ☄

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