Re: Append to python List
Chris Angelico writes: > On Thu, May 9, 2013 at 9:30 PM, Jussi Piitulainen > wrote: >> 8 Dihedral writes: >> >>> This is just the handy style for a non-critical loop. >>> In a critical loop, the number of the total operation counts >>> does matter in the execution speed. >> >> Do you use speed often? > > Dihedral is a bot. Quite a good one, but a bot. That's been said often enough. Is the source available and is it in Python? -- http://mail.python.org/mailman/listinfo/python-list
Re: Source code as text/plain
Carlos Nepomuceno writes: > I'd like to have the option to download the source code as text/plain from > the docs.python.org pages. > > For example: when I'm a docs page, such as: > > http://docs.python.org/2/library/string.html > > and I click the source code link I'm taken to a Mercurial page: > http://hg.python.org/cpython/file/2.7/Lib/string.py > > but over there there's no way to get a clean text/plain version of the code > because the line numbers are included. > > A link to the text/plain version on that page would be nice! > The 'raw' link on the left spews the source as application/binary so most likely your browser will download it instead of showing it. Which is what you asked but if you wanted to view in browser sans the line numbers, there doesn't seem to be a way. -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
Νικόλαος Κούρας writes: > [code] > root@nikos [/home/nikos/www/cgi-bin]# chmod g+w /var/log/httpd/suexec.log > root@nikos [/home/nikos/www/cgi-bin]# ls -l /var/log/httpd/suexec.log > -rw-rw-r-- 1 root root 0 Jun 1 02:52 /var/log/httpd/suexec.log > [/code] > > > and still iam receiving the same error. What did you hope to accomplish with this second chmod? Nobody is in the root group except root. I hope. My guess based on very minimal Googling on the topic is you should change the group of /var/log/httpd/suexec.log to apache. Then again, I have no idea why you have both /usr/local/apache/logs/suexec_log and /var/log/httpd/suexec.log, but the former apparently has some data in it and the latter does not so changing permissions on /var/log/httpd/suexec.log may not help... Oh, apparently suexec prints its config if you run suexec -V, so include that output if you still have problems. -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner question
eschneide...@comcast.net writes: > Is there a more efficient way of doing this? Any help is gratly appreciated. Efficiency in a short program isn't a big thing. You have some pretty weird things in there, there's no need make single element tuples out of your strings and then putting those in a list. Just put the strings in a tuple and go. Likewise there's really no point in having while loops where you exit on the first round now is there? Just use an if. BTW, did I get the logic correctly, the end result is random? If true then the logic can be simplified greatly, you can just discard the user input and print a random choice of your three result strings... -- http://mail.python.org/mailman/listinfo/python-list
Re: My son wants me to teach him Python
Chris Angelico writes: > I have tab completion. Beat that, GUI. Decent GUIs *have* tab completion. Bad GUIs don't. Oh wait. Is a GUI with tab completion a GUI at all or more of a weird ass hybrid? What about a CLI that pops up a menu for completions? -- http://mail.python.org/mailman/listinfo/python-list
Re: Version Control Software
cutems93 writes: > Thank you everyone for such helpful responses! Actually, I have one more > question. Does anybody have experience with closed source version control > software? If so, why did you buy it instead of downloading open source > software? Does closed source vcs have some benefits over open source in some > part? I have some experience with ClearCase. I don't know why anyone would buy it since it's bloated and slow and hard to use and likes to take over your computer. I was very happy to dump it when my team was allowed to use whatever we wanted but then we were not doing software either. ClearCase is also admin heavy for the above reasons. I guess big businesses buy things like that because other big businesses buy things like that. Presumably they keep it because it's cheaper to pay maintenance than move all source to some other system. Now granted, Linux development went to commercial Bitkeeper for a while since Linus Torvalds found it superior to CVS sometime over a decade ago. When the agreement ended, Torvalds himself developed Git to be what he needs. Other projects sprang up around the same time to get that job, this means at least Mercurial if Wikipedia is to be believed. Oh, as far as I know, commercial software vendors always ban their customers from publishing any kinds of benchmarks or other comparisons so it's unlikely you can find anything concrete for your commercial vs. free choice. -- http://mail.python.org/mailman/listinfo/python-list
Re: python 6 compilation failure on RHEL
Cameron Simpson writes: > My personal habit to to build with (adjust to match): > > --prefix=/usr/local/python-2.6.4 > > and put some symlinks in /usr/local/bin afterwards (python2.6, etc). There's actually a program for that, it's called stow. -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: system tray or notification area in python
Daniel Fetchinson writes: > But I have zero experience with gui programming in python. So any > pointers would be much appreciated how to implement a system tray in > python. Gtk is I guess just one option, one could use other stuff from > python but I wouldn't know what the simplest approach is. Well, when I went to download stalonepanel, SourceForge said I might be interested in PyPanel as well. Which is a "lightweight panel/taskbar written in Python and C for X11 window managers." It includes a system tray. Fairly old though but I suppose it could be a start? Apparently it uses python-xlib. -- http://mail.python.org/mailman/listinfo/python-list
Re: Numpy module
farrellpolym...@gmail.com writes: > Hello to the group! > > I've learned a lot about Ubuntu just trying to install numpy for Python > 3.2.3. I've finally managed to put it in the Python3.2 directory but when I > try to import it, I still get there's "no module named numpy." There are > other modules in the same directory, like 'email' and it imports fine. > > Does Numpy 1.6.2 not run with Python 3.2.3? > > Can anybody help? Thank you in advance. What's the goal of this exercise? Ubuntu packages Python 3 and Numpy so all you need to do is install packages python3 and python3-numpy. -- http://mail.python.org/mailman/listinfo/python-list
Re: New to python, do I need an IDE or is vim still good enough?
Ben Finney writes: > Hans Mulder writes: > >> Don't bother: Python comes with a free IDE named IDLE. > > And any decent Unix-alike (most OSen apart from Windows) comes with its > own IDE: the shell, a good text editor (Vim or Emacs being the primary > candidates), and a terminal multiplexor (such as ‘tmux’ or GNU Screen). Just curious since I read the same thing in a programming book recently (21st century C). So what's the greatness that terminal multiplexors offer over tabbed terminals? Especially for software development? For sure I use screen at the remote end of ssh connections where I don't want the application like irssi to die if the connection goes down but other than that? -- http://mail.python.org/mailman/listinfo/python-list
Re: Determining version of OpenSSL linked against python?
Adam Mercer writes:
> Can anyone offer any suggestions as to what is going wrong with the
> above code or offer an alternative way of determining the OpenSSl
> version using python-2.6?
I suppose you could use ctypes to load the library and call SSLeay()
which returns the OpenSSL version number as a C long.
Like this:
from ctypes import *
libssl = cdll.LoadLibrary("libssl.so")
openssl_version = libssl.SSLeay()
print "%.9X" % openssl_version
This gives me 0009080FF which corresponds to 0.9.8o release which is
what I have installed in Debian Squeeze.
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Re: Python usage numbers
Matej Cepl writes: > Slightly less flameish answer to the question “What should I do, > really?” is a tough one: all these suggested answers are bad because > they don’t deal with the fact, that your input data are obviously > broken. The rest is just pure GIGO … Well, sure, but it happens that input data is broken and not fixable. For example, I did a little program to display email headers like the old frm that was bundled with elm, only with support for MIME decoding of the headers. Obviously lots of email software is still completely broken regarding MIME and also multi-line headers. However, something useful can still be extracted from that broken data. > BTW, can you display the following line? > > Příliš žluťoučký kůň úpěl ďábelské ódy. Looks fine to me. You used an ellipsis too above. Well, I don't know what it shold look like exactly. Lots of accents. Hmm, Google says it means "The quick brown fox cried too lazy"? Seems appropriate :) BTW, I'm sending this via Usenet, I wonder what happens in the mail-news gateway? -- http://mail.python.org/mailman/listinfo/python-list
Re: Threads on google groups not on gmane?
Mark Lawrence writes: > I went onto google groups to do a search and saw three threads (there > may be more) that I've never seen on gmane, which I read via > thunderbird on windows. The titles are "Is programming art or > science", "breezypythongui: A New Toolkit for Easy GUIs in Python" and > "weird behaviour: pygame plays in shell but not in script". > > Is anyone else seeing the same thing? I've noticed a lot of messed up threads but that's apparently considered normal here. But I also see broken threads where only some messages are visible on, so it's not a huge stretch that some threads might be completely invisible to me. I read through a "normal" NNTP server. -- http://mail.python.org/mailman/listinfo/python-list
Re: Pythonic cross-platform GUI desingers à la Interface Builder (Re: what gui designer is everyone using)
Wolfgang Keller writes: > This whole cycle of "design GUI"->"generate code"->add own code to > generated code"->"run application with GUI" has always seemed very > un-pythonic to me. A dynamic, interpreted language should allow to work > in a more "lively", "direct" way to build a GUI. What about Qt Quick? I have used it very little, but it does allow dynamic modification of the GUI elements so that the application changes on the fly. I don't know how pythonic it is, since the GUI is described in QML, which combines CSS and javascript. -- http://mail.python.org/mailman/listinfo/python-list
Re: Does hashlib support a file mode?
Phlip writes: > If the file were huge, the file.read() would allocate a big string and > thrash memory. (Yes, in 2011 that's still a problem, because these > files could be movies and whatnot.) I did a crc32 calculator like that and actually ran into some kind of string length limit with large files. So I switched to 4k blocks and the speed is about the same as a C implementation in the program cksfv. Well, of course crc32 is usually done with a table lookup, so it's always fast. I just picked 4k, since it's the page size in x86 systems and also a common block size for file systems. Seems to be big enough. io.DEFAULT_BUFFER_SIZE is 8k here. I suppose using that would be the proper way. -- http://mail.python.org/mailman/listinfo/python-list
Re: Does hashlib support a file mode?
Mel writes: > def file_to_hash(path, m = hashlib.md5()): > > hashlib.md5 *is* called once; that is when the def statement is executed. Very interesting, I certainly wasn't clear on this. So after that def, the created hashlib object is in the module's scope and can be accessed via file_to_hash.__defaults__[0]. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tabs -vs- Spaces: Tabs should have won.
Thorsten Kampe writes: > The "perfect programming font" is just the one that looks so good that > you would also use it for writing email. Dejavu Sans Mono is pretty > good. Consolas looks also looks good but it is Windows only. How is Consolas Windows only? Not that I'd put it in my Windows-free systems, but I don't see why you couldn't? Everything uses TrueType fonts now. I use a font called Dina on this laptop in Emacs. Not pretty but very readable, has a slashed zero and the wide characters are clearly separated, so something like www looks like three ws, not a block of triangle wave. -- http://mail.python.org/mailman/listinfo/python-list
Re: List spam
Ghodmode writes: > Newsgroups aren't inherently spam-free. They're filtered. At least > that's the case with Gmane (http://gmane.org/spam.php). > > My own ISP doesn't provide a news server and, although there are many > links for free open news servers, most of them don't seem to work. You know, Gmane allows access also via NNTP, including this list. Server news.gmane.org, group name gmane.comp.python.general. Haven't used it since I get this list via "normal" NNTP as comp.lang.python. My NNTP access is via a computer club for 8 euros per year. -- http://mail.python.org/mailman/listinfo/python-list
Re: locale.format without trailing zeros
przemol...@poczta.fm writes:
> Hello,
>
import locale
locale.setlocale(locale.LC_ALL, "pl_PL")
> 'pl_PL'
i=0.20
j=0.25
locale.format('%f', i)
> '0,20'
locale.format('%f', j)
> '0,25'
>
> I need to print the numbers in the following format:
> '0,2' (i)
> '0,25'(j)
> So the last trailing zeros are not printed.
That would be the %g conversion specifier.
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Re: idiomatic analogue of Perl's: while (<>) { ... }
Sahil Tandon writes: > I've been tasked with converting some programs from Perl -> Python, and > am (as will soon be obvious) new to the language. If it's any help, I have usually done handling of standard input line by line with this kind of thing: for inputline in sys.stdin: -- http://mail.python.org/mailman/listinfo/python-list
Re: Purely historic question: VT200 text graphic programming
Grant Edwards writes: > C wasn't very widely used under VMS, and VMS had it's own screen > formatting and form handling libraries. Just curious, what language was widely used in VMS? My VMS experience is limited to running Maple for a math course in the university in early 1990s. Didn't know how to do much more than start Maple, probably just dir, logout (or was it logoff?) and ftp :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Purely historic question: VT200 text graphic programming
rzed writes: > Did you say "was"? The last time I did any programming on a VMS system > was ... about 5 1/2 hours ago. Our shop runs OpenVMS now, programs > mostly in C and BASIC. I've quietly insinuated Python into the mix > over the last few months, and that has helped my sanity considerably. I suppose I meant VMS running on VAX. I'd guess you run OpenVMS on Itanium these days? -- http://mail.python.org/mailman/listinfo/python-list
Re: Multiprocessing.Process Daemonic Behavior
"John L. Stephens" writes: > As the parent process terminates 'normally' (either through normal > termination or SIGINT termination), mulitprocessing steps in and > performs child process cleanup via the x.terminate() method. If the > parent terminates any other way, multiprocessing doesn't have the > opportunity to cleanup. Unless you handle the signal explicitly? Since SIGINT maps to KeyboardInterrupt automatically, you basically handle SIGINT but nothing else. A rude hack to your example with a handler for SIGTERM which just raises KeyboardInterrupt resulted in the children getting the SIGTERM 10 seconds afterwards. Which is after the sleep(10) call finishes in your script. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to program in Python to run system commands in 1000s of servers
Roy Smith writes: > I'm not sure how to parse: >> We cannot use ssh as root remote connectivity as well. > > but with 1000's of servers, I really don't see any alternative to ssh, > with key authentication. You don't really propose to type passwords at > 1000's of machines, do you? I guess it might mean someone decided to config sshd with PermitRootLogin no... I believe this is common? I don't think it's a particularly good idea, especially for a large scale deployment. So I guess there may be some config needed for the machines before they can be remotely administrated in an automatic fashion. -- http://mail.python.org/mailman/listinfo/python-list
Re: Incompatible _sqlite3.so
Tim Johnson writes: > I have python 2.6.5 on my main workstation with ubuntu 10.04. I am > attempting to set up a temporary test platform on an asus netbook > with slax running from an SD card. I have installed a python 2.7 > module on the slax OS. (I can't find a python 2.6.5 module for > slax). I haven't used Slax in a while, but there is an easy way to convert Slackware packages to Slax modules with the script "tgz2lzm". Documented at http://www.slax.org/documentation_create_modules.php So presumably you can find a suitable Slackware package for Python and convert it yourself. At a guess that would have sqlite3 included too. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to program in Python to run system commands in 1000s of servers
Chris Angelico writes: > Depending on what exactly is needed, it might be easier to run a > separate daemon on the computers, one whose sole purpose is to do the > task / get the statistics needed and return them. Then the Python > script need only collect each program's returned response. Those would still need to be deployed somehow to the thousands of machines though. I realized after posting that something like pexpect might work for stuffing the keystrokes needed to root login via ssh to all machines and such... If that's what he needs to do, since it wasn't very clear. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is it possible to execute Python code from C++ without writing to a file?
Roger House writes: > I tried PyRun_String, but I can't see how it can be used to return a > tuple (the Py_file_input option always returns None). There's an example of this at http://stackoverflow.com/questions/3789881/create-and-call-python-function-from-string-via-c-api The comments say this took quite a lot of investigation. I believe it too, since it doesn't exactly leap out from the documentation... The example returns only a single fixed integer, but changing it to return a tuple shouldn't be a problem. -- http://mail.python.org/mailman/listinfo/python-list
Re: Vectors
Algis Kabaila writes: > Are there any modules for vector algebra (three dimensional > vectors, vector addition, subtraction, multiplication [scalar > and vector]. Could you give me a reference to such module? NumPy has array (and matrix) types with support for these basic operations you mention. See the tutorial at http://numpy.scipy.org/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Vectors
Andreas Tawn writes: > You might also want to consider http://code.google.com/p/pyeuclid/ Thanks, I was studying quaternions recently and had to use two packages to get some stuff done. And of course one of them used ass-backwards declaration for a quaternion and one didn't... -- http://mail.python.org/mailman/listinfo/python-list
Re: ctypes for AIX
"Waddle, Jim" writes: > I do not have sufficient knowledge to know how to fix this. I would think > that this error somehow is related to compiling on aix. If you have any > suggestions on how to correct this problem , I would appreciate it I'd have to guess your main problem is not using gcc to compile. From a quick look, that's what the guys at the pware site did. -- http://mail.python.org/mailman/listinfo/python-list
Re: Development tools and practices for Pythonistas
Jean-Michel Pichavant writes: > For a single user, there would be no merge issue. Really? What about a single user with many computers and environments? I find myself merging files on occasion because I edited them separately and forgot to check in changes before doing more edits on a different computer. -- http://mail.python.org/mailman/listinfo/python-list
Re: Development tools and practices for Pythonistas
rusi writes: > I am a bit surprised that no one has mentioned rcs so far > Not an option if you are not on a *ix system and not something I am > specifically recommending. I actually use rcs in Windows. Needs a little setup, but works great, from Emacs VC-mode too. -- http://mail.python.org/mailman/listinfo/python-list
Re: Development tools and practices for Pythonistas
rusi writes: >> I actually use rcs in Windows. Needs a little setup, but works great, >> from Emacs VC-mode too. > > Where do you get it? > [What google is showing seems to be about 10-15 years old] As far as I know, RCS hasn't been updated since 5.7 which is about 10 years old now. Linux distributions also package the same version. I use the stuff from rcs57pc1.zip, at ftp://ftp.cs.purdue.edu/pub/RCS/ The package includes also comparison tools cmp, diff, diff3, sdiff as win32 versions. I suppose one would need to recompile if 64-bit versions were needed. The setup I mentioned was just setting RCSINIT to -x,v although I don't remember now why I needed that. -- http://mail.python.org/mailman/listinfo/python-list
Re: Get the IP address of WIFI interface
Neal Becker writes:
> Here's some useful snippits for linux:
>
> def get_default_if():
> f = open('/proc/net/route')
> for i in csv.DictReader(f, delimiter="\t"):
> if long(i['Destination'], 16) == 0:
> return i['Iface']
> return None
>
> def get_ip_address(ifname):
> s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
> return socket.inet_ntoa(fcntl.ioctl(
> s.fileno(),
> 0x8915, # SIOCGIFADDR
> struct.pack('256s', ifname[:15])
> )[20:24])
One possible solution in Linux is asking NetworkManager, if it's in
use. It knows which interfaces are active and what kind they are (LAN,
WLAN, WWAN etc.) NetworkManager communicates via dbus and even
includes python example scripts. So here's my scriptlet based on
NetworkManager example nm-state.py. This one prints out all active
devices and their type and IP address. Easily modified to print only
WLAN types.
import dbus, socket, struct
bus = dbus.SystemBus()
proxy = bus.get_object("org.freedesktop.NetworkManager",
"/org/freedesktop/NetworkManager")
manager = dbus.Interface(proxy, "org.freedesktop.NetworkManager")
# Get device-specific state
devices = manager.GetDevices()
for d in devices:
dev_proxy = bus.get_object("org.freedesktop.NetworkManager", d)
prop_iface = dbus.Interface(dev_proxy, "org.freedesktop.DBus.Properties")
# Get the device's current state and interface name
state = prop_iface.Get("org.freedesktop.NetworkManager.Device", "State")
name = prop_iface.Get("org.freedesktop.NetworkManager.Device", "Interface")
ifa = "org.freedesktop.NetworkManager.Device"
type = prop_iface.Get(ifa, "DeviceType")
addr = prop_iface.Get(ifa, "Ip4Address")
# and print them out
if state == 8: # activated
addr_dotted = socket.inet_ntoa(struct.pack('http://mail.python.org/mailman/listinfo/python-list
Re: problem with GKT module?
Alister Ware writes: > On Fri, 13 May 2011 13:13:00 +, alister ware wrote: > >> I am using gtk.builder with a glade generated GUI >> >> I have a simple call back defined for a radio button widget when I use >> widget.name in linux I get a value of None, windows returns the widget >> name as I would expect. >> >> is this a bug? >> if not how should i find the name of the widget that has triggered a >> call back? >> >> (I would like all my radio buttons to go to the same callback routine if >> possible to make code maintenance easier) >> > So nobody has any Ideas on this at all? You may want to post runnable code demonstrating your problem. -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get PID from subprocess library
TheSaint writes:
> self.handle= \
> xmlrpclib.ServerProxy('http://localhost:%s/rpc' %int(self.numport))
Couldn't you just try to call something via this handle, like
self.handle.aria2.getVersion()? If there's an error, then start aria2
as a daemon and try again.
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Re: Good virtualenv and packaging tutorials for beginner?
Leam Hall writes: > Folks on IRC have suggested using virtualenv to test code under > different python versions. Sadly, I've not found a virtualenv tutorial > I understand. Anyone have a link to a good one? I recently used http://www.simononsoftware.com/virtualenv-tutorial-part-2/ to set up one. I was mostly trying to see if I could use it to install current Python 3 to an oldish Debian system. Worked fine. -- https://mail.python.org/mailman/listinfo/python-list
Re: Generating SVG from turtle graphics
Peter Otten <__pete...@web.de> writes: > Then convert to SVG with an external tool. It looks like ghostscript can do > that: > > $ gs -dBATCH -dNOPAUSE -sDEVICE=svg -sOutputFile=tmp_turtle.svg tmp_turtle.ps And if not (I at least don't have svg output on three ghostscripts I tried), pstoedit can do it too. -- https://mail.python.org/mailman/listinfo/python-list
Re: Where are the moderators?
Skip Montanaro writes: > Neither works for me. The news link clearly fails, but the gmane.org > link has no search functionality either. Do you have a direct URL to > comp.lang.python? Gmane seems to be in the middle of a massive rebuild at the moment. Comp.lang.python's webpage is http://dir.gmane.org/gmane.comp.python.general but none of the links to read or search the list seem to be working at the moment. NNTP access to news.gmane.org and group gmane.comp.python.general works for me. For reading at least, I don't know if this message goes anywhere... -- https://mail.python.org/mailman/listinfo/python-list
Re: Respam levels.
Mark Lawrence writes: >> This may be the result of a misconfigured spam filter, or an actual spam >> attack; anyway, I've now filtered news.bbs.geek.nz from my feed. >> > IIRC the same source for the "nospam" stuff of some months ago which I > believe was purely accidental. It's kinda funny, back in the 90s Usenet was spammed every now and again by various misconfigured BBS's running a Usenet gateway. Usually sending all messages back from every group to every group. I thought BBS's are fairly dead and Usenet is mostly gone too but apparently this downside has made a comeback. -- https://mail.python.org/mailman/listinfo/python-list
Re: Usenet vs. Mailing-list
Grant Edwards writes: > No. FWIW, it's the mailing list that's blocking them, not Gmane. > > That's why I wrote this: > > https://github.com/GrantEdwards/hybrid-inews > > It's an inews work-alike that submits most posts via gmanes NNTP > server, but will deal with particular groups > (e.g. gmane.comp.python.general) that want posts submitted via email. > > It allows me to continue to read (and post to) the Python mailling > list via slrn pointed at gmane. Interesting. In Gnus it was just a couple of settings to make it understand that in this group (i.e. gmane group gmane.comp.python.general) posts and follow-ups should be sent via mail to the mailing list address. -- https://mail.python.org/mailman/listinfo/python-list
Re: Distributing program for Linux
"Loris Bennett" writes: > I am aware that an individual user could use (mini)conda to install a > more recent version of Python in his/her home directory, but I am > interested in how root would install such a program. Root would install the script and required Python version somewhere depending any site specific practices and then use things like pyenv, stow, environment modules or whatever to give the users access to it. Root might even package your script with the interpreter required into one binary. See Tools/freeze in the source distribution. -- https://mail.python.org/mailman/listinfo/python-list
Re: Application problems
Thomas Jollans writes:
> On 10/03/2021 21:50, Mats Wichmann wrote:
>>
>> For the first one, don't feel too bad, this ("opening the normal
>> python") seems to be biting a lot of people recently
>
>
> I wonder why. Python's installation process isn't any different from
> most other Windows software released the past 25-ish years. Is it
> possible that Windows 10's search feature sometimes makes poor
> choices, and typing "python" just brings up the wrong thing?
I'm thinking maybe it's people who've never installed anything? Since
for Facebook or whatever you only need a browser...
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Re: Trying to read from a text file to generate a graph
"Steve" writes: > I am going though a struggle with this and just don't see where it fails. It seems to me you're putting your data into strings when you need to put it into lists. And no, adding brackets and commas to your strings so that printing out the strings makes them look like lists doesn't make them into lists. There's python tutorial at https://docs.python.org/3/tutorial/index.html which may help with the basics. -- https://mail.python.org/mailman/listinfo/python-list
Re: How to package a Python command line app?
Manfred Lotz writes: > pyinstaller worked fine taking care of message.py and typer module. But > as said in my other reply it is glibc version dependent. Perhaps the included freeze.py script (included in the CPython source that is, in Tools/freeze) is worth considering as well. Although it also seems to create a dynamic executable by default (I tried with your hello example), it seems to me it's possible to edit the generated makefile and replace -shared with -static in a few places. Didn't try that though. -- https://mail.python.org/mailman/listinfo/python-list
Scope confusion in Python REPL
I ran into what seems odd scoping to me when playing with some matching examples for 3.10. I kinda thought that if I do from foo import * and from bar import * in the Python REPL, I'd get everything from foo and bar in the main scope. Or whatever the scope is at the prompt. And yet, if I define function foo in module foo and function bar in module bar and import as above, I can't call function bar from function foo. But if I define functions foo and bar at the prompt, then I can. So what's the difference in scoping here? -- https://mail.python.org/mailman/listinfo/python-list
Re: Scope confusion in Python REPL
Chris Angelico writes: > When you import something, all you're doing is getting a local > reference to it; "from foo import make_adder" is basically like saying > "import foo; make_adder = foo.make_adder". The function itself is > still the same, and it still remembers its original context. Thanks, this clears it up. The pattern matching examples that I was looking at when I got confused are at https://mathspp.com/blog/pydonts/pattern-matching-tutorial-for-pythonic-code in case anyone is interested. Fairly neat stuff in my opinion. -- https://mail.python.org/mailman/listinfo/python-list
Re: 'äÄöÖüÜ' in Unicode (utf-8)
Dennis Lee Bieber writes: > On Fri, 1 Apr 2022 03:59:32 +1100, Chris Angelico > declaimed the following: > > >>That's jmf. Ignore him. He knows nothing about Unicode and is >>determined to make everyone aware of that fact. >> >>He got blocked from the mailing list ages ago, and I don't think >>anyone's regretted it. > Ah yes... Unfortunately, when gmane made the mirror read-only, I had to > revert to comp.lang.python... and all the junk that gets in via that and > Google Groups... Hm. I just configured my news reader to send follow-ups to the mailing list when that happened. -- https://mail.python.org/mailman/listinfo/python-list
Re: function call questions
chenyong20...@gmail.com writes:
> My question is:
> (1) why root is always {}?
Because that's what you wrote. root.setdefault(ch, {}) returns {} and
you assign that to root. You probably want to do just
root.setdefault(ch, {}) instead of root = root.setdefault(ch, {}).
> (2) why tree is {'a': {'b': {'c': {?
That I don't know. Seems odd to me. From some debugging it seems that
after root = root.setdefault(ch,{}) tree['a'] and root are the same
object. So on the second round your code calls
tree['a'].setdefault('b',{}) and on the third round
tree['a'].setdefault('c',{}) which results in {'a': {'b': {'c': { as
the value of tree.
> (3) why root isn't the same as tree? shouldn't they be the same because tree
> is argument passed as root?
They are the same until you bind root to a new object with root =
root.setdefault(ch,{}).
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Re: function call questions
"Frank Millman" writes:
> Let's see if I can explain. I am using 't' and 'r' instead of 'tree'
> and 'root', but otherwise it is the same as your original example.
>
t = {}
r = t
id(t)
> 2542235910088
id(r)
> 2542235910088
>
> At this point, t and r are both references to the same empty dictionary.
>
r = r.setdefault('a', {})
>
> This has done two things.
>
> It has inserted the key 'a' into the dictionary, and set its value to {}.
>
t
> {'a': {}}
id(t)
> 2542235910088
>
> It has also rebound 'r' so that it now references the new empty
> dictionary that has been inserted.
I guess this is where I fell of the wagon previously. I got it now.
r
> {}
id(r)
> 2542234429896
t['a']
> {}
id(t['a'])
> 2542234429896
>
> Now continue this process with r = r.setdefault('b', {}), and watch
> what happens.
OK, so what happens is that now t references the dictionary with
{'a': {}} and r references the empty dict inside that. So when we assign to r
again, it's the empty dict inside t (the one accessed by key 'a') that
changes to {'b': {}} and t becomes {'a': {'b': {}}}.
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Re: [PyQT] After MessageBox app quits...why?
Demosthenes Koptsis writes: > Hello, i have a PyQT systray app with a menu and two actions. > > Action1 is Exit and action2 display a MessageBox with Hello World message. > > When i click OK to MessageBox app quits...why? > > http://pastebin.com/bVA49k1C I haven't done anything with Qt in a while but apparently you need to call QtGui.QApplication.setQuitOnLastWindowClosed(False) before trayIcon.show(). -- https://mail.python.org/mailman/listinfo/python-list
Re: Quick help for a python newby, please
jones.day...@gmail.com writes: > but how do I replace the "2008, 8, 18" and "2008, 9, 26" with *my* values? > I've tried several things (which I can't remember all of) but usually end up > with an error like this: Something like this? today = date.today() birthday = date(byear, bmonth, bday) delta = today - birthday print(delta.days) -- https://mail.python.org/mailman/listinfo/python-list
Re: Request Help With Byte/String Problem
Wildman via Python-list writes:
> On Tue, 29 Nov 2016 18:29:51 -0800, Paul Rubin wrote:
>
>> Wildman writes:
>>> names = array.array("B", '\0' * bytes)
>>> TypeError: cannot use a str to initialize an array with typecode 'B'
>>
>> In Python 2, str is a byte string and you can do that. In Python 3,
>> str is a unicode string, and if you want a byte string you have to
>> specify that explicitly, like b'foo' instead of 'foo'. I.e.
>>
>> names = array.array("B", b'\0' * bytes)
>>
>> should work.
>
> I really appreciate your reply. Your suggestion fixed that
> problem, however, a new error appeared. I am doing some
> research to try to figure it out but no luck so far.
>
> Traceback (most recent call last):
> File "./ifaces.py", line 33, in
> ifs = all_interfaces()
> File "./ifaces.py", line 21, in all_interfaces
> name = namestr[i:i+16].split('\0', 1)[0]
> TypeError: Type str doesn't support the buffer API
It's the same issue and same fix. Use b'\0' instead of '\0' for the
argument to split().
There'll be a couple more issues with the printing but they should be
easy enough.
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Re: [OT] Security question
"Frank Millman" writes: > Hi all > > This is off-topic, but I would appreciate a comment on this matter. > > I have just upgraded my internet connection from ADSL to Fibre. > > As part of the process, my ISP sent a text message to my cell phone > with the username and password I must use to connect. > > To my surprise, they sent me my existing username *and* my existing > password, all in clear text. I'd say it depends on what the password is actually used for. You seem to indicate it's just so you can access the internet? To me it seems abusing that password is hard to impossible since it's your fibre to your home. If the password is used for access control for anything then it's an awful practise. In my case, I have one password for the email account my ISP provides and another for their web management pages where I can buy more or get rid of services and see my bills and such. -- https://mail.python.org/mailman/listinfo/python-list
Re: PyQt4 QWebView cant load google maps markers
Xristos Xristoou writes: > I want to create a simple python app using pyqt,QWebView and google maps with > markers. > > The problem is that,the markers does not load inside the QWebView, as > you can see they load just fine in the browser. Well, since you got a javascript error, maybe Qt4 doesn't support the version of javascript Google uses today? Qt4 was released over a decade ago. I tried with PyQt5 and the page loads and a marker shows up. It then disappears as Google puts up a couple of popups. There's a complaint about browser capabilities and also a privacy note from Google. -- https://mail.python.org/mailman/listinfo/python-list
Re: Feeding the trolls
D'Arcy Cain writes: > One of these days I will have to figure out how to block replies to the > trolls as well. Benefit of reading the mailing list via nntp (i.e. gmane): can easily score down follow-ups to annoying people in addition to their posts. Well, assuming a decent newsreader. -- https://mail.python.org/mailman/listinfo/python-list
Re: CURSES WINDOWS
shinobi@f153.n1.z21.fsxnet (shinobi) writes: > Hello All, > > can anyone please let me know what's the path to port linux python curses > program to Windows? Is there really anything that needs to be done? At least a simple hello world python curses program runs on Windows and Linux with no changes. -- https://mail.python.org/mailman/listinfo/python-list
Re: CURSES WINDOWS
Peter via Python-list writes: >> from _curses import * >> ModuleNotFoundError: No module named '_curses' Oh yes, I tested in Cygwin and maybe it doesn't count? But for Windows there's a curses wheel available at https://www.lfd.uci.edu/~gohlke/pythonlibs/#curses -- https://mail.python.org/mailman/listinfo/python-list
Re: Type error: not enough arguments for format string
Cameron Simpson writes: > On 19Sep2018 09:12, synch1...@gmail.com wrote: >>I'm just trying to follow along with the logging tutorial documentation and I >>am getting this error: >> >>import logging >> >>logging.basicConfig(format= '%(asctime)s % (message)s', datefmt='%m%d%Y >>%I:%M:%S %p') > > Probably this: --^^ > > The space after the "%" in "% (message)s" is preventing correct > recognision of the format. Yes. It makes sense to copy-paste examples instead of typing them in. I guess the original is from https://docs.python.org/2/howto/logging.html#changing-the-format-of-displayed-messages and it doesn't have the extra space which is a problem here. -- https://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] SyntaxError: can't assign to literal while using ""blkid -o export %s | grep 'TYPE' | cut -d"=" -f3" % (fs)" using subprocess module in Python
Chris Angelico writes: > No helper needed. Safe against command injection. Uses the known > format of the command's output; if you want other information as well > as the type, you could get that too. Can someone let me in on this secret helper module? Doesn't seem to match the helper module in PyPI at least. -- https://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] SyntaxError: can't assign to literal while using ""blkid -o export %s | grep 'TYPE' | cut -d"=" -f3" % (fs)" using subprocess module in Python
Chris Angelico writes: > On Fri, Nov 9, 2018 at 11:11 PM Anssi Saari wrote: >> >> Chris Angelico writes: >> >> > No helper needed. Safe against command injection. Uses the known >> > format of the command's output; if you want other information as well >> > as the type, you could get that too. >> >> Can someone let me in on this secret helper module? Doesn't seem to >> match the helper module in PyPI at least. >> > > What helper? Helper module used in the original post. I assumed you know what it is since you declared it's not needed. > I said you don't need one. Just use subprocess directly. This part was clear. -- https://mail.python.org/mailman/listinfo/python-list
Re: building 3.7.1 from source, _ctypes and libffi troubles
"Fetchinson . via Python-list" writes: > And as far as I know pkg-config is used by python's configure script > so everything should be fine. I also set > LD_LIBRARY_PATH=/home/fetch/opt/lib:/home/fetch/opt/lib64 and also > C_INCLUDE_PATH=/home/fetch/opt/include I looked into this a little. I found that setting C_INCLUDE_PATH as you did disables finding libffi headers since pkg-config prints nothing with pkg-config --cflags libffi then and it seems the headers are found with pkg-config. As for the libraries, detect_modules() in setup.py wants to find extra library directories from the generated makefile so you need to make sure they actually go in there, like this for example: LDFLAGS=`pkg-config --libs-only-L libffi` ./configure Then you'll have CONFIGURE_LDFLAGS and PY_LDFLAGS set in the generated makefile and setup.py will pick up the directory from there. Anyways, hope it helps. This worked for me on Ubuntu 16.04.5 LTS. -- https://mail.python.org/mailman/listinfo/python-list
Re: Problem in Installing version 3.7.2(64 bit)
Terry Reedy writes: > On 1/26/2019 6:24 AM, Vrinda Bansal wrote: >> Dear Sir/Madam, >> >> After Installation of the version 3.7.2(64 bit) in Windows 8 when I run the >> program it gives an error. Screenshot of the error is attached below. > > Nope. This is text only mail list. Images are tossed. You must copy > and paste. Just curious, but wouldn't it be better to just reject messages with attachments instead of silent removal? I suppose the end result is mostly the same for the person asking but the rest of us would be spared. -- https://mail.python.org/mailman/listinfo/python-list
Re: Problem in Installing version 3.7.2(64 bit)
songbird writes: > my understanding is that this list is actually > several combined services (i'm not sure how the > mailing list operates or how it filters or rejects > things) and then there is the usenet list comp.lang.python > (which is how i see articles and replies). I'm aware but the message was sent to the mailing list and it's the mailing list that removes attachments. I suppose some Usenet servers might strip or reject articles that look like binaries, don't really know. I do think it extremely unlikely a beginner would send a Usenet post except maybe via Google Groups but that interface doesn't do attachments AFAIK. As the mailing list has moderators and they have recently flexed their muscles by outright banning people I'm hoping they would stop these attachment posts too. This would stop the oft repeated responses that attachments are stripped which I find annoying. -- https://mail.python.org/mailman/listinfo/python-list
Re: Your IDE's?
Ben Finney writes: > Emacs and a shell multiplexer (today, that's GNU Screen, but others > swear that I should try TMux). I've actually been using tmux for a while. The only reason and the only thing I can think of that it does and screen doesn't is that tmux can display italic text and screen apparently can't. So I went with tmux for Usenet. Well, there were some claims from tmux about it being a better terminal but I can't really see a difference. -- https://mail.python.org/mailman/listinfo/python-list
Re: Installing Python 3.8.3 with tkinter
Klaus Jantzen writes: > On 7/22/20 11:05 PM, Ned Deily wrote: >> On 2020-07-22 06:20, Klaus Jantzen wrote: >>> Trying to install Python 3.8.3 with tkinter I run configure with the >>> following options >>> >>> ./configure --enable-optimizations --with-ssl-default-suites=openssl >>> --with-openssl=/usr/local --enable-loadable-sqlite-extensions >>> --with-pydebug --with-tcltk-libs='-L/opt/ActiveTcl-8.6/lib/tcl8.6' >>> --with-tcltk-includes='-I/opt/ActiveTcl-8.6/include' >>> >>> Running Python gives the following information >> [...] >>> How do that correctly? >> Try --with-tcltk-libs='-L/opt/ActiveTcl-8.6/lib -ltcl8.6 -ltk8.6' >> >> > Thank you for your suggestion; unfortunately it did not help. Are you sure the libs you need (presumably libtcl8.6.so and libtk8.6.so) are both in /opt/ActiveTcl-8.6/lib/tcl8.6? Or where are they actually? Presumably not in /opt/ActiveTcl-8.6/lib since that didn't work. Could be something else too. You may need to dig into setup.py and the configure script. -- https://mail.python.org/mailman/listinfo/python-list
Re: Please help test astral char display in tkinter Text (especially *nix)
Terry Reedy writes: > Perhaps half of the assigned chars in the first plane are printed > instead of being replaced with a narrow box. This includes emoticons > as foreground color outlines on background color. Maybe all of the > second plane of extended CJK chars are printed. The third plane is > unassigned and prints as unassigned boxes (with an X). I get the same as Menno Holscher (i.e. messages with "character is above the range blah blah") in Debian 10 with the system provided Python 3.7.3. Tcl and tk are 8.6.9. With Python 3.9.0 I get something like what you described above. Some chars print, lots of empty boxes too and lots of just empty space. No boxes with an X and no errors. -- https://mail.python.org/mailman/listinfo/python-list
Re: Why do I have both /usr/lib/python3 and /usr/lib/python3.8?
Chris Green writes: > Why are there both /usr/lib/python3 and /usr/lib/python3.8 on my > x[ubuntu] system? While it's more of an Ubuntu (or Debian) question better asked in some relevant Linux forum, in the end it's because some package managers decided to do that. You can use commands like these to see which packages put stuff in which directory: dpkg -S /usr/lib/python3.8 dpkg -S /usr/lib/python3 On my Debian system the corresponding output looks like this: $ dpkg -S /usr/lib/python3.7 python3.7, libpython3.7-minimal:amd64, python3-tk:amd64, libpython3.7-dev:amd64, libpython3.7-stdlib:amd64, libpython3.7:amd64, python3-distutils, python3-lib2to3: /usr/lib/python3.7 $ dpkg -S /usr/lib/python3 python3-scipy, python3-opengl, python3-statsmodels, iotop, python3-reportlab-accel:amd64, python3-magic, python3-pkg-resources, python3-kiwisolver, python3.7, python3-pandas-lib, python3-kerberos, python3-lz4, python3-renderpm:amd64, python3-numexpr, python3-cffi-backend, python3-crypto, python3-tables, python3-rencode, python3-gi, python3-dbus, devscripts, python3-gpg, python3-pyasn1, python3-py, python3-eyed3, pdfarranger, python3-pip, python3-virtualenv, xpra, python3-pandas, python3-pil:amd64, python3-requests, python3-urllib3, python3-psutil, python3-paramiko, python3-netifaces, python3-patsy, python3-gssapi, python3-sklearn, python3-cycler, python3-sip, python3-cairo:amd64, python3-six, python3-chardet, python3-nose, python3-debian, python3-wheel, python3-attr, python3-soupsieve, python3-bcrypt, python3-bs4, python3-sklearn-lib, python3-scour, python3-setuptools, python3-entrypoints, python3-gi-cairo, python3-cups, python3-keyrings.alt, python3-pluggy, python3-tz, python3-ifaddr, python3-joblib, python3-cvxopt, python3-secretstorage, python3-reportlab, python3-more-itertools, python3-keyring, python3-asn1crypto, python3-html5lib, python3-dns, python3-decorator, python3-dateutil, meson, python3-pexpect, python3-idna, python3-seaborn, lsb-release, python3-numpy, python3-brotli, python3-tables-lib, python3-lxml:amd64, python3-pytest, python3-simplejson, python3-nacl, python3-zeroconf, python3-xdg, python3-libvoikko, python3-gst-1.0, python3-pypdf2, python3-evdev, python3-matplotlib, python3-statsmodels-lib, python3-cryptography, python3-certifi, python3-atomicwrites, python3-pyparsing, python3-ptyprocess, python3-webencodings, piper, python3-uno, python3-apt, python3-setproctitle:amd64, hplip: /usr/lib/python3 So I'd say as a rule stuff relevant to the specific version of python goes in the specific version directory (i.e. /usr/lib/python3.8 in your case) and python software packages in general go in /usr/lib/python3. -- https://mail.python.org/mailman/listinfo/python-list
Re: Newbie - Trying to Help a Friend
Dennis Lee Bieber writes: > Does Pan have an option to generate its own Message-ID header? > > Headers seem to indicate multiple injections somewhere Perhaps Pan doesn't? Someone else had multipostings in the Android group but he was posting via aioe. -- https://mail.python.org/mailman/listinfo/python-list
Re: Copy a file like unix cp -a --reflink
Paulo da Silva writes: > Hi! > > Is there a way to copy a file the same as Unix command: > > cp -a --reflink src dest > > without invoking a shell command? I vaguely remember this was asked and answered some time ago and the answer was no, even just for -a. In fact, the python shutil module documentation starts with a warning to that effect. The --reflink stuff would be another thing altogether. More accurately, currently the only way would be to duplicate this functionality of cp in python. -- https://mail.python.org/mailman/listinfo/python-list
Re: What are the kinds of software that are not advisable to be developed using Python?
Asaf Las writes: > btw, Python could be language of choice for embedded systems if small > footprint > vm could be developed. had seen similar for java having 10-20 KB byte sized > interpreter with very limited set of functions. Well, there's the newish Micro python project. Its footprint is apparently about 60 kB at a minimum (Thumb2 code on ARM). Their kickstarter is at https://www.kickstarter.com/projects/214379695/micro-python-python-for-microcontrollers and source at https://github.com/micropython/micropython The kickstarter was for funding development and a small board with ST's Cortex-M4 on it. The source code includes Windows and Unix targets so it's easy to experiment with without a board too. -- https://mail.python.org/mailman/listinfo/python-list
Re: Do you like the current design of python.org?
Rustom Mody writes: > Pretty... but not exactly what I expect in an interactive console. I have to agree although the console works for me. But shame on the site maintainers though, the interactive console comes up with Python 3.3.6 instead of current 3.4.2 (and IPython 2.10, also not the latest). -- https://mail.python.org/mailman/listinfo/python-list
Re: Creating interactive command-line Python app?
rfreundlic...@colonial.net writes: > um, what if I want to USE a command line for python WITHOUT downloading or > installing it Then click on the little >_ icon on the web site and you have a python prompt in your browser. -- https://mail.python.org/mailman/listinfo/python-list
Re: Future of python on android
"Fetchinson ." writes: > So what's the future proof way of writing/deploying/installing python > programs on android? Kivy is it I believe. I've meant to look into it but haven't gotten around to it... -- https://mail.python.org/mailman/listinfo/python-list
Re: Ghost vulnerability
Rustom Mody writes: > How many people (actually machines) out here are vulnerable? > > http://security.stackexchange.com/questions/80210/ghost-bug-is-there-a-simple-way-to-test-if-my-system-is-secure > > shows a python 1-liner to check Does that check actually work for anyone? That code didn't segfalt on my vulnerable Debian system but it did on my router which isn't (since the router doesn't use glibc). Oh and of course I can't comment on stinkexchange since I don't have whatever mana points they require... -- https://mail.python.org/mailman/listinfo/python-list
Re: Ghost vulnerability
Steven D'Aprano writes:
> Here's the one-liner:
>
> python -c 'import socket;y="0"*5000;socket.gethostbyname(y)'
>
>
> I think it is likely that y="0"*5000 would segfault due to lack of
> memory on many machines. I wouldn't trust this as a test.
Hmm, how much RAM does that one-liner actually need? My router has 128
MB total RAM with about 90 MB free. So it can store the string once but
if it's copied with the gethostbyname call then it'll run out...
According to a Reddit thread
(http://www.reddit.com/r/Python/comments/2u7ghu/python_socketgethostbyname_is_not_affected_by/)
Python's socket.gethostbyname() doesn't actually even call the
gethostbyname function in glibc, it uses the newer getaddrinfo instead.
So it's a little unlikely to cause a segfault because of the Ghost vuln :)
Anyways, here's an example calling gethostbyname directly in python:
from ctypes import CDLL
o = CDLL('libc.so.6')
for i in range(0, 2500):
o.gethostbyname('0'*i)
I don't have a vulnerable system to test on any more though.
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Re: pymongo and attribute dictionaries
Steven D'Aprano writes: > Vito De Tullio wrote: > >> Steven D'Aprano wrote: >> This just does not roll of the fingers well. Too many “reach for modifier keys” in a row. >>> >>> *One* modifier key in a row is too many? >>> >>> s o m e SHIFT D o c [ ' SHIFT _ i d ' ] >> >> I'm not OP, but as side note... not everyone has "[" as a direct character >> on the keyboard. I need to press "AltGr" + "è" (and "AltGr" + "+" to get >> "]"), so I can feel the OP lamenting :) > > Point taken. Thank you. What I find surprising is that so many people cling so hard to their localized keyboard layouts. I think none of those were created by engineers and should be avoided by technical people. Or, in fact, everyone. Even Microsoft seems to understand this and so Windows installs the US English layout by default as an alternative. -- https://mail.python.org/mailman/listinfo/python-list
Re: how to install automatically missing modules on a debian-system
hugocoolens writes: > It often happens I start a python-script I wrote some time ago on another > system and get messages like "module_x is missing". I then perform an > apt-cache search module_x, followed by an apt-get install > name_of_missing_module.deb > I was wondering whether someone here has a kind of method which automatically > looks for the missing modules as debian-packages and offers to install them? I don't know if there's anything that works with random Python scripts. I suppose the straightforward Debian way of it would be to package your script in a .deb package and include the proper dependencies, then apt would take care of installing those too. Debian has a wiki page covering the project's Python packaging policy and how to do it at https://wiki.debian.org/Python/Packaging. -- https://mail.python.org/mailman/listinfo/python-list
Re: extend methods of decimal module
Terry Reedy writes: > On 2/27/2014 7:07 AM, Mark H. Harris wrote: > >> Oh, and one more thing... whoever is doing the work on IDLE these >> days, nice job! It is stable, reliable, and just works/ >> appreciate it! > > As one of 'them', thank you for the feedback. There are still some > bugs, but I hit them seldom enough that I am now looking at > enhancement issues. I recently watched a presentation by Jessica McKellar of PSF about what Python needs to stay popular. Other than the obvious bits (difficulties or limited support of Python on major platforms like Windows and mobile) the slight lack of perfection in IDLE was mentioned. Specifically the old blog post titled "The Things I Hate About IDLE That I Wish Someone Would Fix" at http://inventwithpython.com/blog/2011/11/29/the-things-i-hate-about-idle-that-i-wish-someone-would-fix/ It lists 17 issues and some more in the comments. Are those things something that could be considered? Or have maybe been done already? I'm not an IDLE user so this is mostly an academic interest on my part. -- https://mail.python.org/mailman/listinfo/python-list
Re: passing an option to the python interpreter
Marko Rauhamaa writes:
> Jabba Laci :
>
>> I tried this:
>>
>> #!/usr/bin/env python -u
>
> The hash-bang notation is quite rigid; it only accepts a single argument
> ("python") to the command ("/usr/bin/env").
>
> I don't know if there is a simple workaround.
Using the relevant environment variable (PYTHONUNBUFFERED) seems simple
to me.
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Re: HID Feature Raport, Linux
Kasper Jepsen writes: > Hi, > > I have been using pywinusb.hid for a hid unit, using only feature reports. > I like to get this code to run on raspbian PI, but i can not fint a good > library to support HID/feature reports? > I am a USB newbie > Can anyone help me, or point me in a direction to send/recieve feature > reports without HID support? I believe pyusb with libusb or libusbx would work. There's a summary of the alternatives at http://mcuee.blogspot.fi/2011/04/python-and-usb-hid-device.html if that helps. -- https://mail.python.org/mailman/listinfo/python-list
Re: Is %z broken for return values of time.gmtime()?
random...@fastmail.us writes: > I would argue that it _should_ be, and that it should populate it with 0 > in gmtime or either with timezone/altzone or by some sort of reverse > calculation in localtime, but it is not. Another problem to add to my > list of reasons for my recent python-ideas proposal. Docs say that tm_gmtoff and tm_zone are available if the struct tm in the underlying C library has it. Based on that I kinda expected Cygwin to have it but apparently not. -- https://mail.python.org/mailman/listinfo/python-list
Re: Changing the terminal title bar with Python
dic...@his.com writes: > On Friday, October 18, 2013 12:46:19 PM UTC-4, Steven D'Aprano wrote: > >> xterms used to have a feature where they would write the title back to >> standard input. Unfortunately, it has been disabled for security reasons, >> so I haven't been able to get this to work (not that I tried very >> hard...), but you might like to experiment with this: > > Actually in "xterm" it is configurable (the allowWindowOps resource). > xterm "emulators" lack that (and most of xterm's) configurability. Curious. I was able to do the title store and restore after allowing WindowOps in xterm version 278 (from the ctrl-rightclick menu) but reading the title didn't work any better. -- https://mail.python.org/mailman/listinfo/python-list
Re: Running cool and silent
Rustom Mody writes: > For some reason my Dell laptop runs hot and noisy in linux but cool and > silent in Windows-8 > > Running > > $ echo "min_power" | sudo tee > /sys/class/scsi_host/host*/link_power_management_policy > > makes the fan slow/stop. > > But I am not sure what it does!! > [I dont want my laptop fried and its rather HOT out here right now :-) ] That just turns on the power management on your SATA links. Goggle SATA ALPM if you like. It's perfectly safe. -- https://mail.python.org/mailman/listinfo/python-list
Re: Running cool and silent
Rustom Mody writes: > Does someone know what it does? [Dont remember where I found it] One more comment: run Intel's Powertop to see what else you can do to improve power management on your laptop. -- https://mail.python.org/mailman/listinfo/python-list
Re: should "self" be changed?
Marko Rauhamaa writes: > Ned Batchelder : > >> I would find it much clearer to not use a nested class at all, and >> instead to pass the object into the constructor: > > Nested classes are excellent and expressing the state pattern http://en.wikipedia.org/wiki/State_pattern>. Do you have an example of state pattern using nested classes and python? With a quick look I didn't happen to find one in any language. -- https://mail.python.org/mailman/listinfo/python-list
Re: Python, convert an integer into an index?
Dennis Lee Bieber writes: > On Wed, 23 Sep 2015 00:21:22 +0200, Laura Creighton > declaimed the following: > > >> >>You need to convert your results into a string first. >> >>result_int=1234523 >>result_list=[] >> >>for digit in str(result_int): >>result_list.append(int(digit)) >> > > Rather wordy... > [int(i) for i in str(1234523)] > [1, 2, 3, 4, 5, 2, 3] I'm suprised. Why not just: list(str(results)) In other words, is there something else the list constructor should do with a string other than convert it to a list? -- https://mail.python.org/mailman/listinfo/python-list
Re: Question re class variable
Antoon Pardon writes: > Op 29-09-15 om 11:27 schreef ple...@gmail.com: >> I have a perplexing problem with Python 3 class variables. I wish to >> generate an unique ID each time an instance of GameClass is >> created. There are two versions of the __gen_id method with test run >> results for each listed below the code. > > The problem is that in python you can't change a class variable through an > instance. The moment you > try, you create an instance attribute. That much is clear but why does his other version of __gen_id() work (after a fashion)? It doesn't increment the class variable but the instances get an incremental id. The function was like this: def __gen_id(self): ty = self.__class__.__name__ id = '' while id in self.__instance_registry: id = '%s_%d' % (ty, self.__instance_counter) self.__instance_counter += 1 self.__instance_registry[id] = self return id Also, is there any problem with incrementing GameObject.__instance_counter from __gen_id()? I guess not? -- https://mail.python.org/mailman/listinfo/python-list
Re: Static typing implementation for Python
Chris Angelico writes: > I'm fairly sure most arguments about "readable" or "unreadable" code > follow the same definitions. Does it ever. I never thought annotating names one added with one's initials or copy-pasting code instead of having a boolean expression in an if statement or keeping old code as comments improve readability. But that's what I was just told recently by someone. -- https://mail.python.org/mailman/listinfo/python-list
Re: Micro Python -- a lean and efficient implementation of Python 3
Chris Angelico writes: > I don't have an actual use-case for this, as I don't target > microcontrollers, but I'm curious: What parts of Py3 syntax aren't > supported? I meant to say % formatting for strings but that's apparently been added recently. My previous micropython build was from February. -- https://mail.python.org/mailman/listinfo/python-list
Re: OT: This Swift thing
Gregory Ewing writes: > Current draw of CMOS circuitry is pretty much zero when > nothing is changing, so if you didn't care how slow it ran, > you probably could run a server off a watch battery today. That was before 90 nm when leakage current started dominating over switching current. But has low power or battery life been in anyone's interest ever? Or rather, is battery life interesting enough that marketing would notice? Or maybe it's so that what a marketing guy or a manager needs is maybe one hour for his presentation so anything over that is extra? A few years ago jumbo sized but cheapish CULV laptops suddenly had 10 hours plus battery but did anyone notice or care? Today expensive Haswell ULT laptops get the same while being relatively thin and light but again, where's the interest? Apple didn't even bother trying to make improved battery life a selling point for the 2013 Macbook Air. I was seriously considering one but I prefer matte displays and cellular connectivity built in. -- https://mail.python.org/mailman/listinfo/python-list
Re: DHCP query script not work.
不坏阿峰 writes: > Dear all > > i got code recipes from here. and i want to run it on win 7. > http://code.activestate.com/recipes/577649-dhcp-query/ It works for me as is in Windows 7. It's a Python 3 script though which might be your problem. -- https://mail.python.org/mailman/listinfo/python-list
Re: How to write this repeat matching?
rxjw...@gmail.com writes: > Because I am new to Python, I may not describe the question clearly. Could you > read the original problem on web: > > https://docs.python.org/2/howto/regex.html > > It says that it gets 'abcb'. Could you explain it to me? Thanks again Actually, it tries to explain how * works in the regular expression engine. Do you feel that's a crucial thing for a beginner to understand about Python? Hopefully your answer is no and you can move on. -- https://mail.python.org/mailman/listinfo/python-list
Re: open() and EOFError
Roy Smith writes: > I once knew a guy who linked /dev/tty.c to /dev/tty, then he could do > "cc /dev/tty.c" and type a C program in to the compiler from the > terminal. I thought some old C compilers took input from stdin without that kind of trickery? Oh, looks like modern gcc does it too, as long as the language is specified with -x. -- https://mail.python.org/mailman/listinfo/python-list
Re: OT: usenet reader software
memilanuk writes: > I'm on Ubuntu (14.04 LTS, if it matters) and I've been using > Thunderbird for a lng time... I've tinkered with slrn off and on > over the years, tried pan occasionally due to recommendations... but I > keep ending up back @ Thunderbird. About the only thing it doesn't do > that I really want is scoring/kill-files. I always thought Thuderbird was a lost cause especially with News but it has some serious issues as a mail client too. Probably part of the reason why it never caught on and development stopped. Pretty good and nice to have a cross platform thing but they kept it an island, unable to sync contacts to anything else. Well, the Mac version could at least use the Mac addressbook but on Windows and Linux it's just WTF. > Slrn has those, and I do use vim on occasion so that worked well > enough... but when people *do* post links or html it didn't handle > that stuff gracefully like Thunderbird. I don't really know about about html and slrn since I don't see much of it but links in a terminal application is usually something for the terminal to handle. I run Gnus on a remote machine and use a local terminal for display, Konsole in Linux and mintty in Windows. In both of those terminals URLs are opened with a right click on the link and selecting open link from the menu that pops up. -- https://mail.python.org/mailman/listinfo/python-list
Re: OT: usenet reader software
Marko Rauhamaa writes: > Martin S : > >> Is there a point to still use Usenet? Last time I checked noise >> overwhelmed signal by a factor of something close to 542. > > Well, here you are at news:comp.lang.python>, in the middle of all > that noise. Besides, there's been a slight resurgence in comp.misc at least, apparently some people got angry about something at slashdot and wanted a more free forum, hence a bunch of posts there and some other groups recently. Other than that, I think most of the angry people and spammers have left Usenet alone. All the better for those of us who stick with it but I have to say the average age of people posting to comp.arch at least is probably over 60... The only younger people around seem to be the kids asking for people to do their homework. -- https://mail.python.org/mailman/listinfo/python-list
Re: how to write file into my android phone?
Chris “Kwpolska” Warrick writes: >> 2) the phone isn't necessarily visible on a pc as a drive at all. >> For example the Samsung gs4. > > This is actually true for ALL android devices, starting with Android 3.0. There was just a guy on comp.mobile.android saying his Android 4.2 phone (BLU Dash or something like that, extremely Chinese) presents its external SD card as a USB Mass Storage drive to a PC when connected over USB. Exactly the thing Google hates and fears and has tried to kill off... But it's not like Google can force anything on phones running AOSP Android without Google services and that's China and a few other large emerging markets. So it's just our small market here in the western countries where Google has some control... -- https://mail.python.org/mailman/listinfo/python-list
Re: Unable to run print('Réussi') on windows and on linux
marc.vanhoomis...@gmail.com writes: > What should i do to let the same program run on both OS, without changes? You'd want to set the locale on your Ubuntu box to a UTF8 locale. On the command line you'd run sudo dpkg-reconfigure locales and proceed from there, but I guess there might be gooey way to do that too. But really, it's a Linux configuration question, not a Python question. -- https://mail.python.org/mailman/listinfo/python-list
Re: Matplotlib Contour Plots
Jamie Mitchell writes: > I created the 2D array which read as: Maybe you could try numpy.reshape() on your 1D array? -- https://mail.python.org/mailman/listinfo/python-list
Re: strange results
Fig writes: > My OS is Windows 7, Python 2.7.2, I downloaded and installed the > python-gasp-0.2.0beta1.win32.exe file, and I also have these > installed: Python 2.7 pygame-1.9.2a0 and Python 2.7 pywin32-216 Then maybe that old beta version is your problem? For the record, your code works for me too in Linux and python-gasp 0.3.3. Looks like there's no Windows installer for newer python-gasp. Maybe you could install with easy_install as they describe on the site? -- http://mail.python.org/mailman/listinfo/python-list
