Re: change text of a Tkinter Button by clicking it
Sean McIlroy wrote: > hello > > (how) can you change the text of a Tkinter Button by clicking it? > something like > > def click(index): return lambda: buttons[index].text = 'hello' > buttons = [Button(root,command=click(index)) for index in > range(numbuttons)] > > only with an attribute that Buttons actually have. sorry to have to > ask such a see-spot-run question. thanks if you can help. See http://infohost.nmt.edu/tcc/help/pubs/tkinter/universal.html You can set the text of a Button widget with button["text"] = ... or button.configure(text=...) -- http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
On Wed, Sep 28, 2011 at 07:01:11PM -0400, Terry Reedy wrote: > On 9/28/2011 5:26 PM, Ethan Furman wrote: > > >I don't remember if 'def' is sugar for something besides lambda. > > That is a bit backwards. > lambda x: expr(x) > is syntactic sugar for > def (x): return expr(x) > del > ;-) > lambda is less sugar and more of just a def as an expression. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
On Wed, Sep 28, 2011 at 07:11:08PM -0700, rantingrick wrote: > On Sep 28, 6:26 pm, Tim Johnson wrote: > > * DevPlayer [110928 04:31]: > > > On Sep 27, 10:25 pm, alex23 wrote: > > > > rantingrick wrote: > > > > > Since, like the bible > > > > > the zen is self contradicting, any argument utilizing the zen can be > > > > > defeated utilizing the zen. > > > > > > And like the Bible, the Zen was created by humans as a joke. If you're > > > > taking it too seriously, that's your problem. > > > > > > > If however you want to learn about the accepted rules for formatting > > > > > code then you need to read "PEP-8"! PEP 8 is our style guide. > > > > > Contradiction is only seen by narrow perspectve. > > > > > Calling the Bible a joke is used to hurt people, not enlighten them. > > > Those words show bitter arrogance, not constructive critism as it > > > ignores how others feel about that book. What benefit to others is > > > gained by calling someones belief a joke? > > > > My wife and I are devout christians, but not fundamentalist. We > > would not take rantingrick too seriously. If _you_ take him > > seriously, you're just giving him 'street cred'. > > DevPlayer was not even talking about what i said, he was replying to a > statement by Alex23 who said (and i quote) "And like the Bible, the > Zen was created by humans as a joke". Maybe you should spend the next > fifteen or so minutes catching up to the conversation...(ಠ_ಠ)...of > course only *after* you clean that egg from your face Perhaps you should spend a little less time on the mailing list and a little more time in church. -- http://mail.python.org/mailman/listinfo/python-list
Re: change text of a Tkinter Button by clicking it
never mind. i found it. -- http://mail.python.org/mailman/listinfo/python-list
Re: memory error
Hello All,
I am still having trouble with memory errors when I try to process many
netcdf files.
Originally I would get the memory error as mentioned in the previous post
but when I added gc.collect() after each for loop I receive the error:
GEOS_ERROR: bad allocation
with no additional information!
The error use to occur at the point when a new netcdf file was to be opened
and plotted but with the things I have 'fixed' thanks to suggestions from
this list it seems to happen while processing the second file.
I am just trying to plot 3hourly data for each file and each file contains
hourly data for a month and I am trying to do this for many months.
It seems like I cannot close down the last file properly so the computer has
a clean memory to start the next one.
Any feedback will be greatly appreciated.
My latest version of the code:
##
from netCDF4 import Dataset
import numpy as N
import matplotlib.pyplot as plt
from numpy import ma as MA
from mpl_toolkits.basemap import Basemap
from netcdftime import utime
from datetime import datetime
import os
shapefile1="E:/DSE_BushfireClimatologyProject/griddeddatasamples/test_GIS/DSE_REGIONS"
OutputFolder=r"E:/DSE_BushfireClimatologyProject/griddeddatasamples/GriddedData/OutputsforValidation"
def plotrawdata(variable):
if variable=='TSFC':
ncvariablename='T_SFC'
MainFolder=r"E:/DSE_BushfireClimatologyProject/griddeddatasamples/GriddedData/InputsforValidation/T_SFC/"
ticks=[-5,0,5,10,15,20,25,30,35,40,45,50]
Title='Surface Temperature'
cmap=plt.cm.jet
elif variable=='RHSFC':
ncvariablename='RH_SFC'
MainFolder=r"E:/DSE_BushfireClimatologyProject/griddeddatasamples/GriddedData/InputsforValidation/RH_SFC/"
ticks=[0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100]
Title='Surface RH'
cmap=plt.cm.jet_r
fileforlatlon=Dataset("E:/DSE_BushfireClimatologyProject/griddeddatasamples/GriddedData/InputsforValidation/T_SFC/TSFC_1974_01/IDZ00026_VIC_ADFD_T_SFC.nc",
'r+', 'NETCDF4')
LAT=fileforlatlon.variables['latitude'][:]
LON=fileforlatlon.variables['longitude'][:]
startperiod=raw_input("Start slice (e.g. 1 ): ")
endperiod=raw_input("End slice (e.g. 2): ")
skipperiod=raw_input("skip slice (e.g. 1): ")
if startperiod == "":
startperiod = None
else:
startperiod = int(startperiod)
if endperiod == "":
endperiod = None
else:
endperiod = int(endperiod)
if skipperiod == "":
skipperiod = None
else:
skipperiod= int(skipperiod)
for (path, dirs, files) in os.walk(MainFolder):
for dir in dirs:
print dir
path=path+'/'
for ncfile in files:
if ncfile[-3:]=='.nc':
print "dealing with ncfiles:",
path+ncfile
ncfile=os.path.join(path,ncfile)
ncfile=Dataset(ncfile, 'r+', 'NETCDF4')
#global TSFC
variable=ncfile.variables[ncvariablename][startperiod:endperiod:skipperiod]
TIME=ncfile.variables['time'][startperiod:endperiod:skipperiod]
fillvalue=ncfile.variables[ncvariablename]._FillValue
ncfile.close()
for variable, TIME in
zip((variable[:]),(TIME[:])):
#for variable, TIME in
zip((variable[sliceperiod]),(TIME[sliceperiod])):
cdftime=utime('seconds since
1970-01-01 00:00:00')
ncfiletime=cdftime.num2date(TIME)
print ncfiletime
timestr=str(ncfiletime)
d = datetime.strptime(timestr,
'%Y-%m-%d %H:%M:%S')
date_string =
d.strftime('%Y%m%d_%H%M')
#Set up basemap using mercator
projection
http://matplotlib.sourceforge.net/basemap/doc/html/users/merc.html
map =
Basemap(projection='merc',llcrnrlat=-40,urcrnrlat=-33,
llcrnrlon=139.0,urcrnrlon=151.0,lat_ts=0,resolution='i')
x,y=map(*N.meshgrid(LON,LAT))
map.drawcoastlines(linewidth=0.5)
map.readshapefile(shapefile1,
'DSE_REGIONS')
map.drawstates()
plt.title(Title+' %s
UTC'%ncfiletime)
CS = map.contourf(x,y,variable,
ticks, cmap=cmap)
l,b,w,h =0.1,0.1,0.8,0.8
change text of a Tkinter Button by clicking it
hello (how) can you change the text of a Tkinter Button by clicking it? something like def click(index): return lambda: buttons[index].text = 'hello' buttons = [Button(root,command=click(index)) for index in range(numbuttons)] only with an attribute that Buttons actually have. sorry to have to ask such a see-spot-run question. thanks if you can help. peace stm -- http://mail.python.org/mailman/listinfo/python-list
UnicodeDecodeError
I am getting this error while some testing on Python2.6, File "/usr/lib64/python2.6/httplib.py", line 774, in _send_output #msg = "\r\n".join(self._buffer) UnicodeDecodeError: 'ascii' codec can't decode byte 0xe1 in position 14: ordinal not in range(128) I tried the change suggested on this link http://web.archiveorange.com/archive/v/PJbOg9pxJoUpQA9AHp3X, its working fine after that. There seems to be some problem in httplib with unicode handling. I am running it on centos5. I am still not sure why its happening and what will be ideal solution for this? Thanks, Gaurav -- http://mail.python.org/mailman/listinfo/python-list
Re: A Trivial Question
On Thu, Sep 29, 2011 at 7:53 AM, Tayfun Kayhan
wrote:
> def trial():
>class Foo(object):
> def __init__(self):
> print("Hello, world!")
> trial() # not worked, as expected.
Python doesn't have "class declarations" in the way that some other
languages do. The 'class' statement is an executable statement - it
builds a class object and binds it to the name Foo, just like any
other assignment. The 'def' command builds a function object in a
similar fashion. So in your trial() function, you're defining a class
and binding it to the local name Foo; and then doing nothing with it.
It's perfectly legal, and as Chris Rebert suggests, you can make it
useful by instantiating Foo() objects inside trial().
ChrisA
--
http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
In article , Tim Chase wrote: > On 09/28/11 19:52, Roy Smith wrote: > > In many cases, there's only two states of interest: > > > > 1) All tests pass > > > > 2) Anything else > > Whether for better or worse, at some places (such as a previous > employer) the number (and accretion) of test-points is a > marketing bullet-point for upgrades & new releases. Never attribute to malice that which is adequately explained by the stupidity of the marketing department. -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
On 09/28/11 19:52, Roy Smith wrote: In many cases, there's only two states of interest: 1) All tests pass 2) Anything else Whether for better or worse, at some places (such as a previous employer) the number (and accretion) of test-points is a marketing bullet-point for upgrades & new releases. -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Benefit and belief
Devin Jeanpierre writes: > > Forget money, or even the love of money. The idea that one mustn't > > criticise another person's beliefs is the root of all evil. > > This was a technical discussion, and calling the bible a joke was not > necessary at all. It creates a hostile atmosphere. I disagree. It was not an attack on any person nor group of people. If we are to be required to avoid jokes not directed at people, then *that* is an atmosphere hostile to open friendly discussion. > Can't you pick somewhere else to attack Christianity? The person who wrote the “bible is a joke” intended it as a flippant remark. Countless other flippant remarks pass through here all the time, making jokes at the expense of some idea or other. Christianity will not be an exception to that. If you find someone attacking people, I'll join you in ostracising the attacker. But no, don't attempt to silence jokes that attack an idea. Off-topic? If we start discussing the content of the ideas being attacked, yeah, I'd say religion is pretty off-topic. But the topic of keeping this forum safe for technical discussion entails that it must be safe for *any* idea to be the butt of a joke, be it a religious text or the Zen of Python, and that is very much on-topic. -- \ “We demand rigidly defined areas of doubt and uncertainty!” | `\—Vroomfondel, _The Hitch-Hiker's Guide To The Galaxy_, Douglas | _o__)Adams | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
In article <874nzw3wxc@benfinney.id.au>, Ben Finney wrote: > Roy Smith writes: > > > In article <87k48szqo1@benfinney.id.au>, > > Ben Finney wrote: > > > > > Worse, if one of the scenarios causes the test to fail, the loop will > > > end and you won't get the results for the remaining scenarios. > > > > Which, depending on what you're doing, may or may not be important. In > > many cases, there's only two states of interest: > > > > 1) All tests pass > > > > 2) Anything else > > For the purpose of debugging, it's always useful to more specifically > narrow down the factors leading to failure. Well, sure, but "need to debug" is just a consequence of being in state 2. If a test fails and I can't figure out why, I can always go back and add additional code to the test case to extract additional information. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
On Sep 28, 10:12 pm, DevPlayer wrote: > Calling the Bible a joke is used to hurt people, not enlighten them. Y'know, I wouldn't even bother responding to this if Xianists were as open, forgiving and accepting as their messiah told them to be. It was a *flippant remark*. If you want to establish intent, aggression and religio-politico-philosophy from every throwaway remark made on the internet, you're not really going to have much time for Python. My belief system isn't your's. Hell, my belief system doesn't even require that I have *any respect whatsoever* for your's. If it's okay for Xianists to "suffer not a witch to live", then I'm going to assert my making light jokes about those whose world view is in direct opposition to mine isn't even comparable to that mentality. from attitude import humour (Since we're already fully derailed here, I've always preferred Borges' suggestion that it was actually Judas who carried the full weight of man's sins, given that his betrayal of Christ and inevitable condemnation to hell was a necessity. Then again, I'm able to safely view this as *allegory* and am genuinely interested in the opinions of modern minds over something first begun by nomads millenia ago...) -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
Steven D'Aprano writes: > I used to ask the same question, but then I decided that if I wanted > each data point to get its own tick, I should bite the bullet and > write an individual test for each. Hence my advocating the ‘testscenarios’ library. Have you tried that? It allows the best of both worlds: within the class, you write a collection of data scenarios, and write one test case for each separate behaviour, and that's all that appears in the code; but the test run shows every test case for every scenario. E.g. with a ParrotTestCase class having three test cases and four scenarios, the test run will run the full combination of all of them and report twelve distinct test cases and the result for each. So the “bite the bullet” you describe isn't necessary to get what you want. > If you really care, you could subclass unittest.TestCase, and then > cause each assert* method to count how often it gets called. But > really, how much detailed info about *passed* tests do you need? The ‘testscenarios’ library does subclass the standard library ‘unittest’ module. But as explained elsewhere, it's not the counting which is the issue. The issue is to ensure (and report) that every test case is actually tested in isolation against every relevant scenario. -- \“Human reason is snatching everything to itself, leaving | `\ nothing for faith.” —Bernard of Clairvaux, 1090–1153 | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
Roy Smith writes: > In article <87k48szqo1@benfinney.id.au>, > Ben Finney wrote: > > > Worse, if one of the scenarios causes the test to fail, the loop will > > end and you won't get the results for the remaining scenarios. > > Which, depending on what you're doing, may or may not be important. In > many cases, there's only two states of interest: > > 1) All tests pass > > 2) Anything else For the purpose of debugging, it's always useful to more specifically narrow down the factors leading to failure. -- \ “A lie can be told in a few words. Debunking that lie can take | `\ pages. That is why my book… is five hundred pages long.” —Chris | _o__)Rodda, 2011-05-05 | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
Oh I was just testing my intellecual-enlightenment-from-ranter- conversation algorithm found in a previous post. I think my OOP model failed as I'm just too tired to finished that pattern test. He had some good points which fit the process I layed out. But the original topic is just so much better: Suggested coding style Options -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
On Sep 28, 6:26 pm, Tim Johnson wrote: > * DevPlayer [110928 04:31]: > > On Sep 27, 10:25 pm, alex23 wrote: > > > rantingrick wrote: > > > > Since, like the bible > > > > the zen is self contradicting, any argument utilizing the zen can be > > > > defeated utilizing the zen. > > > > And like the Bible, the Zen was created by humans as a joke. If you're > > > taking it too seriously, that's your problem. > > > > > If however you want to learn about the accepted rules for formatting > > > > code then you need to read "PEP-8"! PEP 8 is our style guide. > > > Contradiction is only seen by narrow perspectve. > > > Calling the Bible a joke is used to hurt people, not enlighten them. > > Those words show bitter arrogance, not constructive critism as it > > ignores how others feel about that book. What benefit to others is > > gained by calling someones belief a joke? > > My wife and I are devout christians, but not fundamentalist. We > would not take rantingrick too seriously. If _you_ take him > seriously, you're just giving him 'street cred'. DevPlayer was not even talking about what i said, he was replying to a statement by Alex23 who said (and i quote) "And like the Bible, the Zen was created by humans as a joke". Maybe you should spend the next fifteen or so minutes catching up to the conversation...(ಠ_ಠ)...of course only *after* you clean that egg from your face. -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Python 2.6.7 on Windows
On Sep 27, 11:25 pm, Steven D'Aprano wrote: > The Python development team is relatively small and chronically busy: too > much to do and not enough time to do it. If that is the case then why do they snub their noses at anyone who wishes to help? What kind of people would chase off good help just to save ego? I imagine the folks at py dev sort of like a dying man in need of a heart transplant; the man informs the doctor that he would happy to get a transplant but not if the heart came from a jew, asian, african, latin, russian, or canuck. -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
On Wed, Sep 28, 2011 at 6:50 PM, Devin Jeanpierre wrote: >> I used to ask the same question, but then I decided that if I wanted each >> data point to get its own tick, I should bite the bullet and write an >> individual test for each. > > Nearly the entire re module test suite is a list of tuples. If it was > instead a bunch of TestCase classes, there'd be a lot more boilerplate > to write. (At a bare minimum, there'd be two times as many lines, and > all the extra lines would be identical...) > > Why is writing boilerplate for a new test a good thing? It discourages > the authorship of tests. Make it as easy as possible by e.g. adding a > new thing to whatever you're iterating over. This is, for example, why > the nose test library has a decorator for generating a test suite from > a generator. +1 > > Devin > > On Wed, Sep 28, 2011 at 8:16 PM, Steven D'Aprano > wrote: >> Tim Chase wrote: >> >>> While I asked this on the Django list as it happened to be with >>> some Django testing code, this might be a more generic Python >>> question so I'll ask here too. >>> >>> When performing unittest tests, I have a number of methods of the >>> form >>> >>> def test_foo(self): >>> data = ( >>> (item1, result1), >>> ... #bunch of tests for fence-post errors >>> ) >>> for test, result in data: >>> self.assertEqual(process(test), result) >>> >>> When I run my tests, I only get a tick for running one the one >>> test (test_foo), not the len(data) tests that were actually >>> performed. Is there a way for unittesting to report the number >>> of passed-assertions rather than the number of test-methods run? >> >> I used to ask the same question, but then I decided that if I wanted each >> data point to get its own tick, I should bite the bullet and write an >> individual test for each. >> >> If you really care, you could subclass unittest.TestCase, and then cause >> each assert* method to count how often it gets called. But really, how much >> detailed info about *passed* tests do you need? >> >> If you are writing loops inside tests, you might find this anecdote useful: >> >> http://mail.python.org/pipermail/python-list/2011-April/1270640.html >> >> >> >> -- >> Steven >> >> -- >> http://mail.python.org/mailman/listinfo/python-list >> > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Python 2.6.7 on Windows
En Wed, 28 Sep 2011 21:10:38 -0300, Nobody escribió: On Wed, 28 Sep 2011 15:21:25 -0700, Ned Deily wrote: No, it was a deliberate decision. After a release is in security-fix mode only, we don't build Windows or Mac OS X installers for them. But you continue to offer the installers for the unfixed version. As well as all the previous ones back to Python 1.x I can think of several alternatives: * Upgrade to Python 2.7, the current stable and maintained release. * Compile Python 2.6.7 yourself. For the 32 bits version, you may use Microsoft Visual C++ 2008 Express Edition (free/gratis); see PCbuild\readme.txt for details. Obtain the required dependencies using Tools\buildbot\external.bat. It compiles cleanly out of the box. * Obtain the compiled binary somewhere else. Considering that 2.6.7 is just a security patch, I'm not sure if running a precompiled binary from untrusted sources is any better than sticking with the official, previous version. I've built the binaries, in case you're interested. * Compare both source trees and look at their differences. Most of them are in Python modules that you can just drop over an existing 2.6.6 install. Only two C modules have changed, and require rebuilding python26.dll: timemodule.c r87648: Issue #8013: Fixed time.asctime segfault when OS's asctime fails unicodedata.c http://bugs.python.org/issue10254 If you think you're not affected by these, just ignore 2.6.7 (or apply only the .py changes) -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Benefit and belief [was Re: Suggested coding style]
> Forget money, or even the love of money. The idea that one mustn't > criticise another person's beliefs is the root of all evil. This was a technical discussion, and calling the bible a joke was not necessary at all. It creates a hostile atmosphere. Can't you pick somewhere else to attack Christianity? Devin On Wed, Sep 28, 2011 at 9:14 PM, Steven D'Aprano wrote: > DevPlayer wrote: > >> On Sep 27, 10:25 pm, alex23 wrote: >>> And like the Bible, the Zen was created by humans as a joke. If you're >>> taking it too seriously, that's your problem. > [...] >> Calling the Bible a joke is used to hurt people, not enlighten them. >> Those words show bitter arrogance, not constructive critism as it >> ignores how others feel about that book. What benefit to others is >> gained by calling someones belief a joke? > > It is the same benefit as the little boy who pointed out that the Emperor > was not wearing any clothes. (In real life, the story was called "The > Little Boy Who Said The Emperor Wasn't Wearing Any Clothes, and Got > Arrested and Thrown in Prison Together With His Parents for Insulting The > Emperor".) > > >> To put the "believers" minds >> straight? I think not. I think the unsensitive person who attackes >> others beliefs, even if illogical or unrealistic, is after some kind >> of self grandizement or to illude themself into thinking "they know >> the truth of the universe" and should attack others to prove they do. > > There is a difference between attacking ideas and attacking people. > > "The Bible is a joke" attacks the idea. > > "Insensitive people after self-aggrandisement deluding themselves" attacks > the person. > > We live in a world where religion is privileged, where governments pander to > the most sick and twisted, hateful, bigoted beliefs because of religion, > where organised conspiracies to support and protect child molesters and > sexual predators are nevertheless looked up to as sources of morality. > > There are some ideas that are simply incompatible with civilization, and the > idea that religious beliefs should be beyond criticism is one of them. > Forget money, or even the love of money. The idea that one mustn't > criticise another person's beliefs is the root of all evil. > > > > -- > Steven > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
[OT] Benefit and belief [was Re: Suggested coding style]
DevPlayer wrote: > On Sep 27, 10:25 pm, alex23 wrote: >> And like the Bible, the Zen was created by humans as a joke. If you're >> taking it too seriously, that's your problem. [...] > Calling the Bible a joke is used to hurt people, not enlighten them. > Those words show bitter arrogance, not constructive critism as it > ignores how others feel about that book. What benefit to others is > gained by calling someones belief a joke? It is the same benefit as the little boy who pointed out that the Emperor was not wearing any clothes. (In real life, the story was called "The Little Boy Who Said The Emperor Wasn't Wearing Any Clothes, and Got Arrested and Thrown in Prison Together With His Parents for Insulting The Emperor".) > To put the "believers" minds > straight? I think not. I think the unsensitive person who attackes > others beliefs, even if illogical or unrealistic, is after some kind > of self grandizement or to illude themself into thinking "they know > the truth of the universe" and should attack others to prove they do. There is a difference between attacking ideas and attacking people. "The Bible is a joke" attacks the idea. "Insensitive people after self-aggrandisement deluding themselves" attacks the person. We live in a world where religion is privileged, where governments pander to the most sick and twisted, hateful, bigoted beliefs because of religion, where organised conspiracies to support and protect child molesters and sexual predators are nevertheless looked up to as sources of morality. There are some ideas that are simply incompatible with civilization, and the idea that religious beliefs should be beyond criticism is one of them. Forget money, or even the love of money. The idea that one mustn't criticise another person's beliefs is the root of all evil. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
In article <87k48szqo1@benfinney.id.au>, Ben Finney wrote: > Worse, if one of the scenarios causes the test to fail, the loop will > end and you won't get the results for the remaining scenarios. Which, depending on what you're doing, may or may not be important. In many cases, there's only two states of interest: 1) All tests pass 2) Anything else -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
> I used to ask the same question, but then I decided that if I wanted each > data point to get its own tick, I should bite the bullet and write an > individual test for each. Nearly the entire re module test suite is a list of tuples. If it was instead a bunch of TestCase classes, there'd be a lot more boilerplate to write. (At a bare minimum, there'd be two times as many lines, and all the extra lines would be identical...) Why is writing boilerplate for a new test a good thing? It discourages the authorship of tests. Make it as easy as possible by e.g. adding a new thing to whatever you're iterating over. This is, for example, why the nose test library has a decorator for generating a test suite from a generator. Devin On Wed, Sep 28, 2011 at 8:16 PM, Steven D'Aprano wrote: > Tim Chase wrote: > >> While I asked this on the Django list as it happened to be with >> some Django testing code, this might be a more generic Python >> question so I'll ask here too. >> >> When performing unittest tests, I have a number of methods of the >> form >> >> def test_foo(self): >> data = ( >> (item1, result1), >> ... #bunch of tests for fence-post errors >> ) >> for test, result in data: >> self.assertEqual(process(test), result) >> >> When I run my tests, I only get a tick for running one the one >> test (test_foo), not the len(data) tests that were actually >> performed. Is there a way for unittesting to report the number >> of passed-assertions rather than the number of test-methods run? > > I used to ask the same question, but then I decided that if I wanted each > data point to get its own tick, I should bite the bullet and write an > individual test for each. > > If you really care, you could subclass unittest.TestCase, and then cause > each assert* method to count how often it gets called. But really, how much > detailed info about *passed* tests do you need? > > If you are writing loops inside tests, you might find this anecdote useful: > > http://mail.python.org/pipermail/python-list/2011-April/1270640.html > > > > -- > Steven > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
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Welcome to the www. currenthats.com,. The currenthats.com is a promotional shop from monster energy hats. It was authorized to provide red bull hats，snapback hats，hello kitty hats and the fashionable sports items to meet red bull hats Fans shopping needs. -- http://mail.python.org/mailman/listinfo/python-list
red bull hats, snapback hats, hello kitty hats, monster energy hats of http://www.currenthats.com/
Welcome to the www. currenthats.com,. The currenthats.com is a promotional shop from monster energy hats. It was authorized to provide red bull hats，snapback hats，hello kitty hats and the fashionable sports items to meet red bull hats Fans shopping needs. -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
In article <4e83b8e0$0$29972$c3e8da3$54964...@news.astraweb.com>, Steven D'Aprano wrote: > If you are writing loops inside tests, you might find this anecdote useful: > > http://mail.python.org/pipermail/python-list/2011-April/1270640.html On the other hand, the best test is one that gets written. I will often write tests that I know do not meet the usual standards of purity and wholesomeness. Here's a real-life example: for artist in artists: name = artist['name'] self.assertIsInstance(name, unicode) name = name.lower() # Due to fuzzy matching, it's not strictly guaranteed that the # following assertion is true, but it works in this case. self.assertTrue(name.startswith(term), (name, term)) Could I have written the test without the loop? Probably. Would it have been a better test? I guess, at some level, probably. And, of course, the idea of a "not strictly guaranteed" assertion is probably enough to make me lose my Unit Tester's Guild Secret Decoder Ring forever :-) But, the test was quick and easy to write, and provides value. I could have spent twice as long writing a better test, and it would have provided a little more value, but certainly not double. More importantly, had I spent the extra time writing the better test, I might have not had enough time to write all the other tests I wrote that day. Sometimes good enough is good enough. -- http://mail.python.org/mailman/listinfo/python-list
options for plotting points on geographic map
Recommendations sought for using Python to plot points/custom markers (and maybe other things?) on a map of an area of the U.S. of maybe 100 miles radius. (This would be a "political" map showing towns, such as from Google Maps or Mapquest, and not a "physical" map). I'll need to place markers or something based on zip codes. I see there is pymaps, a Python wrapper for Google Maps. I may try that but it seems to be barely documented and would require making a webpage with javascript to display the map, whereas I'd probably prefer a desktop app for this--though I'd consider a web page (it's probably easier than I think). I already use Matplotlib, but its Basemap seems to be only for physical geography needs. Are there other options one might recommend? (It is a little hard to Google for this given the map() function). Thanks, Che -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
Tim Chase wrote: > While I asked this on the Django list as it happened to be with > some Django testing code, this might be a more generic Python > question so I'll ask here too. > > When performing unittest tests, I have a number of methods of the > form > >def test_foo(self): > data = ( >(item1, result1), >... #bunch of tests for fence-post errors >) > for test, result in data: >self.assertEqual(process(test), result) > > When I run my tests, I only get a tick for running one the one > test (test_foo), not the len(data) tests that were actually > performed. Is there a way for unittesting to report the number > of passed-assertions rather than the number of test-methods run? I used to ask the same question, but then I decided that if I wanted each data point to get its own tick, I should bite the bullet and write an individual test for each. If you really care, you could subclass unittest.TestCase, and then cause each assert* method to count how often it gets called. But really, how much detailed info about *passed* tests do you need? If you are writing loops inside tests, you might find this anecdote useful: http://mail.python.org/pipermail/python-list/2011-April/1270640.html -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Python 2.6.7 on Windows
On Wed, 28 Sep 2011 15:21:25 -0700, Ned Deily wrote: > No, it was a deliberate decision. After a release is in security-fix > mode only, we don't build Windows or Mac OS X installers for them. But you continue to offer the installers for the unfixed version. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
* DevPlayer [110928 04:31]: > On Sep 27, 10:25 pm, alex23 wrote: > > rantingrick wrote: > > > Since, like the bible > > > the zen is self contradicting, any argument utilizing the zen can be > > > defeated utilizing the zen. > > > > And like the Bible, the Zen was created by humans as a joke. If you're > > taking it too seriously, that's your problem. > > > > > If however you want to learn about the accepted rules for formatting > > > code then you need to read "PEP-8"! PEP 8 is our style guide. > > > Contradiction is only seen by narrow perspectve. > > Calling the Bible a joke is used to hurt people, not enlighten them. > Those words show bitter arrogance, not constructive critism as it > ignores how others feel about that book. What benefit to others is > gained by calling someones belief a joke? My wife and I are devout christians, but not fundamentalist. We would not take rantingrick too seriously. If _you_ take him seriously, you're just giving him 'street cred'. -- Tim tim at tee jay forty nine dot com or akwebsoft dot com http://www.akwebsoft.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Wrote a new library - Comments and suggestions please!
Steven D'Aprano wrote: I googled on "SAS PROC FREQ" and found this: http://support.sas.com/documentation/cdl/en/procstat/63104/HTML/default/procstat_freq_sect006.htm Documentation like that really makes me appreciate the sterling work done on Python's docs. I think you have to read it in context. A couple of levels up there is a section called "The FREQ Procedure" which seems to explain more about what's going on, including examples. (I didn't look too closely at it, though, in case my eyes started to bleed...) -- Greg -- http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
On 9/28/2011 5:26 PM, Ethan Furman wrote: I don't remember if 'def' is sugar for something besides lambda. That is a bit backwards. lambda x: expr(x) is syntactic sugar for def (x): return expr(x) del ;-) -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
On Wed, Sep 28, 2011 at 3:26 PM, Ethan Furman wrote: > I remember that 'class' is sugar for type(). > > I don't remember if 'def' is sugar for something besides lambda. This is something I have thought about a lot since PyCon this year. I apologize in advance. Since 3.0, class statements are syntactic sugar for some extra steps beyond "meta(...)" [1]. In CPython this is facilitated through the "hidden" __build_class__() builtin[2]. We have the __import__() builtin for customizing module creation. But, as you asked, what about functions? Currently there isn't a way to customize function creation. There is no __build_function__() builtin. The best you can do is, like others have said, directly call FunctionType(...) or type(f)(...) where f is an existing function. I expect that if there were a __build_function__, it would wrap the code that is currently run for the MAKE_FUNCTION/MAKE_CLOSURE opcodes[3]. Also, both modules and classes have mechanisms built-in to allow for customization in certain parts of the creation process (PEP 302[4] and metaclasses[5], respectively). Functions lack this as well, though there hasn't been a big clamor for it. :) Nick Coghlan proposed an interesting idea for this in March[6], with some later follow-up[7]. Nothing much came of it though. Definitely an interesting topic, which has led me to learn a lot about Python and CPython. -eric [1] http://www.python.org/dev/peps/pep-3115/ http://mail.python.org/pipermail/python-3000/2007-March/006338.html [2] http://hg.python.org/cpython/file/default/Python/bltinmodule.c#l35 [3] http://hg.python.org/cpython/file/default/Python/ceval.c#l2680 [4] http://www.python.org/dev/peps/pep-0302/ http://docs.python.org/release/2.3.5/whatsnew/section-pep302.html http://docs.python.org/dev/reference/simple_stmts.html#the-import-statement [5] http://docs.python.org/dev/reference/datamodel.html#customizing-class-creation http://www.python.org/doc/essays/metaclasses/ [6] http://mail.python.org/pipermail/python-ideas/2011-March/009391.html [7] http://mail.python.org/pipermail/python-ideas/2011-March/009625.html http://mail.python.org/pipermail/python-ideas/2011-April/009765.html > > Any clues for me? Heck, I'll even be grateful for outright answers! > > ~Ethan~ > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
En Wed, 28 Sep 2011 18:51:00 -0300, Chris Kaynor
escribió:
On Wed, Sep 28, 2011 at 2:37 PM, Arnaud Delobelle
wrote:
On 28 September 2011 22:26, Ethan Furman wrote:
I remember that 'class' is sugar for type().
I don't remember if 'def' is sugar for something besides lambda.
Any clues for me? Heck, I'll even be grateful for outright answers!
It's not really sugar. But I think you mean something like this:
class A: pass
...
type(A)
type is type(A)
True
So the closest you get for functions will be:
def f(): pass
...
type(f)
Try help(type(f)) to see how to use it to create a function object.
The problem is that you need to provide a code object, and the easiest
way to create a code object is to use a def statement :)
I would say compile isn't too much harder to use:
c = compile('a = 123', 'test', 'exec')
d = {}
f = types.FunctionType(c, d, 'test')
f()
print d
{'a': 123}
Although it appears you get all of the variables defined as global
apparently (try "f = types.FunctionType(c, globals(), 'test')"
instead).
I know no way of compiling a function body alone. Suppose you have this
function:
def foo(x):
print x
y = 2*x
return y
py> compile(" print x\n y = 2*x\n return y", "", "exec")
Traceback (most recent call last):
File "", line 1, in
File "", line 1
print x
^
IndentationError: unexpected indent
py> compile("print x\ny = 2*x\nreturn y", "", "exec")
Traceback (most recent call last):
File "", line 1, in
File "", line 3
SyntaxError: 'return' outside function
If you include the 'def' statement in the source string, the resulting
code object does not represent the function itself, but a "module"
defining it:
py> f = FunctionType(compile("def foo(x):\n print x\n y = 2*x\n return
y\n",
... "", "exec"), globals(), "foo")
py> f(3)
Traceback (most recent call last):
File "", line 1, in
TypeError: () takes no arguments (1 given)
py> dis.dis(f)
1 0 LOAD_CONST 0 (file "", line 1>)
3 MAKE_FUNCTION0
6 STORE_NAME 0 (foo)
9 LOAD_CONST 1 (None)
12 RETURN_VALUE
To get at the actual function code, one should use
f.func_code.co_consts[0]; this would be the 'code' parameter for
types.FunctionType. Very complicated, really; nothing can beat the 'def'
statement for defining a function ;)
--
Gabriel Genellina
--
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Re: Installing Python 2.6.7 on Windows
In article <4e82a1a1$0$29965$c3e8da3$54964...@news.astraweb.com>, Steven D'Aprano wrote: > On Tue, 27 Sep 2011 14:32:43 -0700, Wanderer wrote: > > I need to stay in sink with the rest of the company which is still using > > 2.6 flavors. There was some investigation into going to Python 3 but not > > enough of the libraries we use were available. I'll install 2.6.6. I > > don't think the security stuff really effects me. I think it is strange > > to release a security update but not really expect people to use it. > > > More likely the person who builds the Windows installers just hasn't made > a new release yet. > > The Python development team is relatively small and chronically busy: too > much to do and not enough time to do it. As I understand it, most of them > use Linux, so I'm afraid that Windows sometimes takes a back seat. (At > least it's not Mac OS, which is stuck riding in the boot of the car, or > the other semi-supported OSes, which are on a skateboard desperately > hanging onto the bumper trying not to be left behind.) No, it was a deliberate decision. After a release is in security-fix mode only, we don't build Windows or Mac OS X installers for them. The emphasis is on the actively maintained release branches, currently 3.2.x and 2.7.x. If third-party distributors want to support their users with binary installers, that is of course their option. "Python 2.6.7 is a security-fix only source release for Python 2.6.6, fixing several reported security issues. Python 2.6.7 was released on June 3, 2011. Python 2.6 is now in security-fix-only mode; no new features are being added, and no new bug fix releases are planned. We intend to provide source-only security fixes for the Python 2.6 series until October 2013 (five years after the 2.6 final release). For ongoing maintenance releases, please see the Python 2.7 series." http://www.python.org/getit/releases/2.6.7/ (And I think you may be just slightly mischaracterizing the status of both Mac OS X and Windows support.) -- Ned Deily, n...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
Re: A Trivial Question
On Wed, Sep 28, 2011 at 2:53 PM, Tayfun Kayhan
wrote:
> I accidentally wrote such a code (below) while trying to write sth else for
> my application but i am now just wondering much how to run the class Foo, if
> it is possible. Is not it weird that Python does not give any error when I
> run it ? Sorry for that it's pretty unimportant question according to the
> other questions being asked here :D
> def trial():
> class Foo(object):
> def __init__(self):
> print("Hello, world!")
> trial() # not worked, as expected.
Right now, you've merely defined a class in the local scope of a
function, which is perfectly valid, although you don't take advantage
of this, so there's no particular reason to put the class definition
inside trial(). Foo.__init__() only gets called when you create an
instance of Foo, which you aren't doing currently, hence why "Hello,
world!" isn't printed.
Try this:
def trial():
class Foo(object):
def __init__(self):
print("Hello, world!")
Foo()
trial()
Or this:
class Foo(object):
def __init__(self):
print("Hello, world!")
def trial():
Foo()
trial()
Cheers,
Chris
--
http://rebertia.com
--
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Re: Unittest testing assert*() calls rather than methods?
On 9/28/2011 10:16 AM, Tim Chase wrote: When performing unittest tests, I have a number of methods of the form def test_foo(self): data = ( (item1, result1), ... #bunch of tests for fence-post errors ) for test, result in data: self.assertEqual(process(test), result) When I run my tests, I only get a tick for running one the one test (test_foo), not the len(data) tests that were actually performed. Is there a way for unittesting to report the number of passed-assertions rather than the number of test-methods run? In my view, unittest, based on JUnit from Java, is both overkill and inadequate for simple function testing of multiple input-output pairs. So I wrote my own short function test function that does just what I want, and which I can change if I change what I want. Ben has described the combinatorial explosion solution. But if I were using unittest, I might do something like the following: def test_foo(self): data = ( (item1, result1), ... #bunch of tests for fence-post errors ) errors = [] for input, expected in data: try: actual = process(input) if actual != expected: errors.append(input, expected, actual) except Exception as e: errors.append(input, expected, actual) self.assertEqual((0,[]), (len(errors),errors)) except that I would write a functest(func, iopairs) that returned the error pair. (This is essentially what I have done for for myself.) I am presuming that one can run unittest so that it prints the unequal items. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
A Trivial Question
I accidentally wrote such a code (below) while trying to write sth else for my
application but i am now just wondering much how to run the class Foo, if it is
possible. Is not it weird that Python does not give any error when I run it ?
Sorry for that it's pretty unimportant question according to the other
questions being asked here :D
def trial():
class Foo(object):
def __init__(self):
print("Hello, world!")
trial() # not worked, as expected.--
http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
On Wed, Sep 28, 2011 at 2:37 PM, Arnaud Delobelle wrote:
> On 28 September 2011 22:26, Ethan Furman wrote:
>> I remember that 'class' is sugar for type().
>>
>> I don't remember if 'def' is sugar for something besides lambda.
>>
>> Any clues for me? Heck, I'll even be grateful for outright answers!
>
> It's not really sugar. But I think you mean something like this:
>
>
class A: pass
> ...
type(A)
>
type is type(A)
> True
>
> So the closest you get for functions will be:
>
def f(): pass
> ...
type(f)
>
>
> Try help(type(f)) to see how to use it to create a function object.
> The problem is that you need to provide a code object, and the easiest
> way to create a code object is to use a def statement :)
I would say compile isn't too much harder to use:
>>> c = compile('a = 123', 'test', 'exec')
>>> d = {}
>>> f = types.FunctionType(c, d, 'test')
>>> f()
>>> print d
{'a': 123}
Although it appears you get all of the variables defined as global
apparently (try "f = types.FunctionType(c, globals(), 'test')"
instead).
>
> HTH
>
> --
> Arnaud
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
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Re: syntactic sugar for def?
On 28 September 2011 22:26, Ethan Furman wrote: > I remember that 'class' is sugar for type(). > > I don't remember if 'def' is sugar for something besides lambda. > > Any clues for me? Heck, I'll even be grateful for outright answers! It's not really sugar. But I think you mean something like this: >>> class A: pass ... >>> type(A) >>> type is type(A) True So the closest you get for functions will be: >>> def f(): pass ... >>> type(f) Try help(type(f)) to see how to use it to create a function object. The problem is that you need to provide a code object, and the easiest way to create a code object is to use a def statement :) HTH -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
Re: syntactic sugar for def?
On Wed, Sep 28, 2011 at 3:26 PM, Ethan Furman wrote: > I remember that 'class' is sugar for type(). > > I don't remember if 'def' is sugar for something besides lambda. > > Any clues for me? Heck, I'll even be grateful for outright answers! If you mean is there a way to create functions using reflection, you can use types.FunctionType. Like type() requires a dict, FunctionType() requires a code object that must first be compiled. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
syntactic sugar for def?
I remember that 'class' is sugar for type(). I don't remember if 'def' is sugar for something besides lambda. Any clues for me? Heck, I'll even be grateful for outright answers! ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On 9/28/2011 5:28 AM, Xah Lee wrote: curious question. suppose you have 300 different strings and they need all be replaced to say "aaa". is it faster to replace each one sequentially (i.e. replace first string to aaa, then do the 2nd, 3rd,...) , or is it faster to use a regex with “or” them all and do replace one shot? (i.e. "1ststr|2ndstr|3rdstr|..." -> aaa) Here the problem is replace multiple random substrings with one random substring that could create new matches. I would start with the re 'or' solution. btw, the origin of this question is about writing a emacs lisp function that replace ~250 html named entities to unicode char. As you noted this is a different problem in that there is a different replacement for each. Also, the substrings being searched for are not random but have a distinct and easily recognized structure. The replacement cannot create a new match. So the multiple scan approach *could* work. Unspecified is whether the input is unicode or ascii bytes. If the latter I might copy to a bytearray (mutable), scan forward, replace entity defs with utf-8 encoding of the corresponding unicode (with a dict lookup, and which I assume are *always* fewer chars), and shift other chars to close any gaps created. If the input is unicode, I might do the same with array.array (which is where bytearray came from). Or I might use the standard idiom of constructing a list of pieces of the original, with replacements, and ''.join() at the end. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: new to python question
On Wed, Sep 28, 2011 at 5:06 PM, The Geek wrote:
> I'm clearly not understanding something about scope in python... Any help
> is appreciated
> In the following script I'm attempting to create 2 Foo objects, for each Foo
> object I create 2 Bars and add them to Foo's bar array
> Something hokey is occurring with the "foo.bars.append(bar)" line such that
> Foo.bars is treated as a "static" (I know python doesn't have statics)
> I have a workaround using encapsulation for the bars array but I prefer
> would also like to understand the issue.
> TIA,
> Brad
> [SCRIPT]
> foos = []
> class Foo:
> id = 0
> bars = []
> class Bar:
> id = 0
> for j in range(0, 2):
> foo = Foo()
> for i in range(0, 2):
> bar = Bar()
> bar.id = i
> foo.bars.append(bar)
> foos.append(foo)
> for myFoo in foos:
> print("foo id: ", myFoo.id)
> for myBar in myFoo.bars:
> print ("\tbar id: ", myBar.id)
> [/SCRIPT]
It's a pretty common gotcha for people coming from other languages.
Everything declared in the class scope becomes an attribute of the
class.
>>> class Foo(object) :
...a = 3
...def b() : pass
...
>>> dir(Foo)
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribut
e__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_e
x__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '_
_weakref__', 'a', 'b']
Mutating those objects mutates the attribute of the class, which is
visible to all instances of the class.
In order to get an instance of a class, you have to add the field to
the instance of the class instead of to the class itself.
class Bar(object) :
def ___init__(self) :
self.a = 3
--
http://mail.python.org/mailman/listinfo/python-list
new to python question
I'm clearly not understanding something about scope in python... Any help
is appreciated
In the following script I'm attempting to create 2 Foo objects, for each Foo
object I create 2 Bars and add them to Foo's bar array
Something hokey is occurring with the "foo.bars.append(bar)" line such that
Foo.bars is treated as a "static" (I know python doesn't have statics)
I have a workaround using encapsulation for the bars array but I prefer
would also like to understand the issue.
TIA,
Brad
[SCRIPT]
foos = []
class Foo:
id = 0
bars = []
class Bar:
id = 0
for j in range(0, 2):
foo = Foo()
for i in range(0, 2):
bar = Bar()
bar.id = i
foo.bars.append(bar)
foos.append(foo)
for myFoo in foos:
print("foo id: ", myFoo.id)
for myBar in myFoo.bars:
print ("\tbar id: ", myBar.id)
[/SCRIPT]
[OUTPUT]
python test.py
foo id: 0
bar id: 0
bar id: 1
bar id: 0
bar id: 1
foo id: 0
bar id: 0
bar id: 1
bar id: 0
bar id: 1
[/OUTPUT]
--
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Re: question about speed of sequential string replacement vs regex or
Willem writes:
> Eli the Bearded wrote:
> ) In comp.lang.perl.misc, Willem wrote:
> )> In Perl, it would be applicable. You see, in Perl, you can call a function
> )> in the replacement of the regex substitution, which can then look up the
> )> html entity and return the wanted unicode literal.
> )
> ) A function? I'd use a hash.
>
> A function can return a sensible value for unknown substitutions.
You can do that also in the RHS of the substitution and still keep it
readable if you use something like
s{..}{
your
code
goes
here
}ge;
However, a function can be easier on the eye:
s{...}{ some_good_name( ... ) }ge;
--
John Bokma j3b
Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/
Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html
--
http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
Eli the Bearded wrote: ) In comp.lang.perl.misc, Willem wrote: )> In Perl, it would be applicable. You see, in Perl, you can call a function )> in the replacement of the regex substitution, which can then look up the )> html entity and return the wanted unicode literal. ) ) A function? I'd use a hash. A function can return a sensible value for unknown substitutions. In the case where you prebuild a giant regex or-list, that is not an issue, but I would match html entities generically. SaSW, Willem -- Disclaimer: I am in no way responsible for any of the statements made in the above text. For all I know I might be drugged or something.. No I'm not paranoid. You all think I'm paranoid, don't you ! #EOT -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
In comp.lang.perl.misc, Willem wrote: > In Perl, it would be applicable. You see, in Perl, you can call a function > in the replacement of the regex substitution, which can then look up the > html entity and return the wanted unicode literal. A function? I'd use a hash. > I think you can do that in some other languages as well. Hash / array type substitutions indexed by $1 (or language equivilent) are probably easy to implement in many languages. Elijah -- for really fast, write code to generate a C lexer to do it -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Wed, Sep 28, 2011 at 3:28 AM, Xah Lee wrote: > curious question. > > suppose you have 300 different strings and they need all be replaced > to say "aaa". > > is it faster to replace each one sequentially (i.e. replace first > string to aaa, then do the 2nd, 3rd,...) > , or is it faster to use a regex with “or” them all and do replace one > shot? (i.e. "1ststr|2ndstr|3rdstr|..." -> aaa) > > let's say the sourceString this replacement to be done on is 500k > chars. > > Anyone? i suppose the answer will be similar for perl, python, ruby. > > btw, the origin of this question is about writing a emacs lisp > function that replace ~250 html named entities to unicode char. I haven't timed it at the scale you're talking about, but for Python I expect regex will be your best bet: # Python 3.2: Supposing the match strings and replacements are # in a dict stored as `repls`... import re pattern = '|'.join(map(re.escape, repls.keys())) new_str = re.sub(pattern, lambda m: repls[m.group()], old_str) The problem with doing 300 str.replace calls is the 300 intermediate strings that would be created and then collected. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On 28/09/2011 18:00, Willem wrote: Xah Lee wrote: ) the question originally came from when i was coding elisp of a ) function that changes html entities to unicode char literal. The ) problem is slightly complicated, involving a few questions about speed ) in emacs. e.g. string vs buffer, and much more... i spent several ) hours on this but it's probably too boring to detail (but i'll do so ) if anyone wishes). But anyway, while digging these questions that's ) not clear in my mind, i thought of why not generate a regex or ) construct and do it in one shot, and wondered if that'd be faster. But ) afterwards, i realized this wouldn't be applicable to my problem ) because for my problem each string needs to be changed to a unique ) string, not all to the same string. In Perl, it would be applicable. You see, in Perl, you can call a function in the replacement of the regex substitution, which can then look up the html entity and return the wanted unicode literal. I think you can do that in some other languages as well. Including Python... -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
Xah Lee wrote: ) the question originally came from when i was coding elisp of a ) function that changes html entities to unicode char literal. The ) problem is slightly complicated, involving a few questions about speed ) in emacs. e.g. string vs buffer, and much more... i spent several ) hours on this but it's probably too boring to detail (but i'll do so ) if anyone wishes). But anyway, while digging these questions that's ) not clear in my mind, i thought of why not generate a regex or ) construct and do it in one shot, and wondered if that'd be faster. But ) afterwards, i realized this wouldn't be applicable to my problem ) because for my problem each string needs to be changed to a unique ) string, not all to the same string. In Perl, it would be applicable. You see, in Perl, you can call a function in the replacement of the regex substitution, which can then look up the html entity and return the wanted unicode literal. I think you can do that in some other languages as well. SaSW, Willem -- Disclaimer: I am in no way responsible for any of the statements made in the above text. For all I know I might be drugged or something.. No I'm not paranoid. You all think I'm paranoid, don't you ! #EOT -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 2.5 zlib trouble
Fix: http://lipyrary.blogspot.com/2011/05/how-to-compile-python-on-ubuntu-1104.html On Tue, Sep 27, 2011 at 5:04 AM, Benjamin Kaplan wrote: > On Mon, Sep 26, 2011 at 2:16 PM, Jesramz > wrote: >> >> I appreciate all the help, but I am still a little confused. Sorry, >> I'm a lay person. >> >> Should I download zlib1g-dev and install it to get the zlib module? >> >> and Alter the configure script to avoid future issues? >> >> Also about getting zlib I found the following: >> >> "I was able to recompile zlib >> >> $./configure --shared >> >> then recompile Python 2.5.1; I am now able to import the zlib module. >> >> cheers >> >> -sg" >> >> Does this mean that while in the zlib folder run ./configure shared >> and then install python? >> -- > > Not quite. This person was talking about configuring zlib, not Python. > Just about every Linux program out there has a ./configure file- it's > part of GNU Autotools, which many programs use as an easy way to > compile and install their software. Since the version of zlib on > Ubuntu Natty doesn't work for Python 2.5, this person just compiled > their own zlib (calling ./configure --shared; make; make install from > the zlib *source* folder that they downloaded) and then compiled their > own Python version (from the Python source folder that they > downloaded) > > >> http://mail.python.org/mailman/listinfo/python-list >> > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Re: how to run in xp?
On Wed, Sep 28, 2011 at 9:29 AM, Peter Otten <__pete...@web.de> wrote: > =?gbk?B?ytjW6rT9zcM=?= wrote: > >> it can run ,but there is still a problem ,nothing in my file. >> please run the code in xp+python32 >> import urllib.request, urllib.parse, urllib.error >> exchange=['NASDAQ','NYSE','AMEX'] >> for down in exchange: >> url='http://www.nasdaq.com/screening/companies-by- > industry.aspx?exchange='+down+'&render=download' >> file=urllib.request.urlopen(url).read() >> print (file) >> what you get is: >> > >> b'' >> b'' >> b'' > >> >> how to fix it? > > I get the expected output, but I'm on Linux. Are you using the latest bugfix > release (Python 3.2.2)? Can you download the data with your browser? I get the expected output, but I'm on Windows (Vista, Python 3.2.2.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
Ben Finney writes: > You can use the third-party ‘testscenarios’ library The URL got a bit mangled. The proper PyPI URL for that library is http://pypi.python.org/pypi/testscenarios>. > to generate test cases at run time, one for each combination of > scenarios with test cases on the class. They will all be run and > reported as distinct test cases. > > There is even another library integrating this with Django > http://pypi.python.org/pypi/django-testscenarios>. -- \“Don't worry about people stealing your ideas. If your ideas | `\ are any good, you'll have to ram them down people's throats.” | _o__)—Howard Aiken | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Unittest testing assert*() calls rather than methods?
Tim Chase writes: > def test_foo(self): > data = ( > (item1, result1), > ... #bunch of tests for fence-post errors > ) > for test, result in data: > self.assertEqual(process(test), result) The sets of data for running the same test we might call “scenarios”. > When I run my tests, I only get a tick for running one the one test > (test_foo), not the len(data) tests that were actually performed. Worse, if one of the scenarios causes the test to fail, the loop will end and you won't get the results for the remaining scenarios. > Is there a way for unittesting to report the number of > passed-assertions rather than the number of test-methods run? You can use the third-party ‘testscenarios’ library http://pypi.python.org/pypi/test-scenarios> to generate test cases at run time, one for each combination of scenarios with test cases on the class. They will all be run and reported as distinct test cases. There is even another library integrating this with Django http://pypi.python.org/pypi/django-testscenarios>. -- \ “Books and opinions, no matter from whom they came, if they are | `\ in opposition to human rights, are nothing but dead letters.” | _o__) —Ernestine Rose | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
DevPlayer writes: > Calling the Bible a joke is used to hurt people, not enlighten them. How do you know that? > Those words show bitter arrogance, not constructive critism How do you know that? > as it ignores how others feel about that book. That strikes me as a good thing; how people feel about a book should not in any way restrain our criticism of the book. > What benefit to others is gained by calling someones belief a joke? To > put the "believers" minds straight? I think not. I can't speak for the person who wrote that. But when I call a religious belief a joke, it is to point out the folly of the belief in the pursuit of convincing people not to hold beliefs I consider to be foolish. > I think the unsensitive person who attackes others beliefs, even if > illogical or unrealistic, is after some kind of self grandizement or > to illude themself into thinking "they know the truth of the universe" > and should attack others to prove they do. You are wrong to conflate “attack others's beliefs” with “attack others”. You are not your beliefs. If your beliefs are shown to be false – even ridiculous – you can distance yourself from those beliefs. It is even virtuous to do so. We must always be free to attack any belief, and encourage everyone to stop taking it as any kind of personal attack. > Although this is not the place to defend about such things it is also > not the place to attack those same things (that being someone's > faith). I will join you in deploring any attack on a person. But that's not what you're doing, and I deny your attempt to shield any idea from ridicule, in any forum. Ideas don't have feelings, and you don't get to put people in front of them as human shields against attacking those ideas. Any idea is and must be open to attack in any forum; those that can't survive ridicule deserve to go. -- \ “Ridicule is the only weapon which can be used against | `\ unintelligible propositions.” —Thomas Jefferson, 1816-07-30 | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Unittest testing assert*() calls rather than methods?
While I asked this on the Django list as it happened to be with some Django testing code, this might be a more generic Python question so I'll ask here too. When performing unittest tests, I have a number of methods of the form def test_foo(self): data = ( (item1, result1), ... #bunch of tests for fence-post errors ) for test, result in data: self.assertEqual(process(test), result) When I run my tests, I only get a tick for running one the one test (test_foo), not the len(data) tests that were actually performed. Is there a way for unittesting to report the number of passed-assertions rather than the number of test-methods run? -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Wed, Sep 28, 2011 at 11:22 PM, Neil Cerutti wrote:
> I'd like to know what "string replacement" is supposed to mean in
> the context of Python.
>
Substring replacement, such as:
>>> "Hello, world!".replace(", "," -- ")
'Hello -- world!'
The str method doesn't accept a list, though, so it won't do
simultaneous replaces. (At least, I don't think it can. Tried it only
in Python 3.2 on Windows.)
ChrisA
--
http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
In article <9egld1f38...@mid.individual.net>, Neil Cerutti wrote: > On 2011-09-28, Chris Angelico wrote: > > On Wed, Sep 28, 2011 at 10:28 PM, Xah Lee wrote: > >> each string needs to be changed to a unique string, not all to > >> the same string. > > > > And you'll find that this is, by and large, the most normal > > situation. Folding many strings down to one string is a lot > > less common. So, let's have some real-world use cases and then > > we can talk recommendations. > > I'd like to know what "string replacement" is supposed to mean in > the context of Python. You just need to use "string" in the more generic computer-sciency sense, not in the python-data-type sense. s = "I am an immutable string" l = list(s) # now you can pretend strings are mutable do_stuff_to_string(l) s = ''.join(l) -- http://mail.python.org/mailman/listinfo/python-list
Re: how to run in xp?
=?gbk?B?ytjW6rT9zcM=?= wrote: > it can run ,but there is still a problem ,nothing in my file. > please run the code in xp+python32 > import urllib.request, urllib.parse, urllib.error > exchange=['NASDAQ','NYSE','AMEX'] > for down in exchange: > url='http://www.nasdaq.com/screening/companies-by- industry.aspx?exchange='+down+'&render=download' > file=urllib.request.urlopen(url).read() > print (file) > what you get is: > > b'' > b'' > b'' > > how to fix it? I get the expected output, but I'm on Linux. Are you using the latest bugfix release (Python 3.2.2)? Can you download the data with your browser? -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On 2011-09-28, Chris Angelico wrote: > On Wed, Sep 28, 2011 at 10:28 PM, Xah Lee wrote: >> each string needs to be changed to a unique string, not all to >> the same string. > > And you'll find that this is, by and large, the most normal > situation. Folding many strings down to one string is a lot > less common. So, let's have some real-world use cases and then > we can talk recommendations. I'd like to know what "string replacement" is supposed to mean in the context of Python. -- Neil Cerutti "A politician is an arse upon which everyone has sat except a man." e. e. cummings -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Wed, Sep 28, 2011 at 11:14 PM, Xah Lee wrote: > (while (< ii (length pairs)) > (setq mystr (replace-regexp-in-string > (elt tempMapPoints ii) > (elt (elt pairs ii) 1) > mystr t t)) > (setq ii (1+ ii)) > ) from __future__ import lisp_syntax There, that makes it on-topic for the Python list... I guess. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
here's more detail about the origin of this problem. Relevant to emacs lisp only. -- in the definition of “replace-regexp-in-string”, there's this comment: ;; To avoid excessive consing from multiple matches in long strings, ;; don't just call `replace-match' continually. Walk down the ;; string looking for matches of REGEXP and building up a (reversed) ;; list MATCHES. This comprises segments of STRING which weren't ;; matched interspersed with replacements for segments that were. ;; [For a `large' number of replacements it's more efficient to ;; operate in a temporary buffer; we can't tell from the function's ;; args whether to choose the buffer-based implementation, though it ;; might be reasonable to do so for long enough STRING.] note: «For a `large' number of replacements it's more efficient to operate in a temporary buffer». my question is, anyone got some idea, how “large” is large? currently, i have a function replace-pairs-in-string which is implemented by repeatedly calling “replace-pairs-in-string” like this: (while (< ii (length pairs)) (setq mystr (replace-regexp-in-string (elt tempMapPoints ii) (elt (elt pairs ii) 1) mystr t t)) (setq ii (1+ ii)) ) When there are 260 pairs of strings to be replaced on a file that's 26k in size, my function takes about 3 seconds (which i think is too slow). I'm at pain deciding whether my function should be implemented like this or whether it should create a temp buffer. The problem with temp buffer is that, if you repeatedly call it, the overhead of creating buffer is going to make it much slower. i was actually surprised that replace-regexp-in-string isn't written in C, which i thought it was. is there technical reason the replace-regexp-in-string isn't C? (i suppose only because nobody every did it and the need for speed didn't suffice?) and also, shouldn't there also be a replace-in-string (literal, not regex)? because i thought implementing replacement for string should be much simpler and faster, because buffers comes with it a whole structure such as “point”, text properties, buffer names, buffier modifier, etc. Xah On Sep 28, 5:28 am, Xah Lee wrote: > On Sep 28, 3:57 am, mer...@stonehenge.com (Randal L. Schwartz) wrote: > > > > "Xah" == Xah Lee writes: > > > Xah> curious question. > > Xah> suppose you have 300 different strings and they need all be replaced > > Xah> to say "aaa". > > > And then suppose this isn't the *real* question, but one entirely of > > Fiction by Xah Lee. > > > How helpful do you want to be? > > it's a interesting question anyway. > > the question originally came from when i was coding elisp of a > function that changes html entities to unicode char literal. The > problem is slightly complicated, involving a few questions about speed > in emacs. e.g. string vs buffer, and much more... i spent several > hours on this but it's probably too boring to detail (but i'll do so > if anyone wishes). But anyway, while digging these questions that's > not clear in my mind, i thought of why not generate a regex or > construct and do it in one shot, and wondered if that'd be faster. But > afterwards, i realized this wouldn't be applicable to my problem > because for my problem each string needs to be changed to a unique > string, not all to the same string. > > Xah -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Wed, Sep 28, 2011 at 10:28 PM, Xah Lee wrote: > each string needs to be changed to a unique > string, not all to the same string. And you'll find that this is, by and large, the most normal situation. Folding many strings down to one string is a lot less common. So, let's have some real-world use cases and then we can talk recommendations. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: oauth2 server implementation
In article <862e37e9-f4d2-4423-8d28-485923f1c...@p11g2000yqe.googlegroups.com>, Aljosa Mohorovic wrote: > On Sep 28, 2:17 am, Roy Smith wrote: > > We rolled our own oauth2 client on top of basic urllib calls. It's not > > terribly difficult. > > i'm asking about oauth2 server implementation, not client. > it's easy to consume oauth2 stuff but what to do when you need to > implement server side stuff? Oh, my apologies, I read your post too fast and misunderstood what you were asking. I suspect writing an oauth2 provider will be on my plate soon, so let me know what you figure out :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Hierarchical commnd line parsing / help texts
plac is based on argparser and it is intended to be much easier to use. See http://plac.googlecode.com/hg/doc/plac.html Here is an example of usage. $ cat vcs.py class VCS(object): "A fictitious version control tool" commands = ['checkout', 'commit'] def checkout(self, url): return 'ok' def commit(self): return 'ok' if __name__ == '__main__': import plac; plac.Interpreter.call(VCS) The line plac.Interpreter.call instantiates the VCS class by passing to it the arguments in the command line and then calls the appropriate method. You can use the script as follows: $ python vcs.py -h usage: vcs.py [-h] [args [args ...]] positional arguments: args optional arguments: -h, --help show this help message and exit $ python vcs.py checkout url ok $ python vcs.py commit ok plac takes care of parsing the command line, giving the correct error message if you pass wrong arguments or not enough arguments: $ python vcs.py checkout usage: checkout url checkout: error: too few arguments plac can also be used to write command interpreters. -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Sep 28, 3:57 am, mer...@stonehenge.com (Randal L. Schwartz) wrote: > > "Xah" == Xah Lee writes: > > Xah> curious question. > Xah> suppose you have 300 different strings and they need all be replaced > Xah> to say "aaa". > > And then suppose this isn't the *real* question, but one entirely of > Fiction by Xah Lee. > > How helpful do you want to be? it's a interesting question anyway. the question originally came from when i was coding elisp of a function that changes html entities to unicode char literal. The problem is slightly complicated, involving a few questions about speed in emacs. e.g. string vs buffer, and much more... i spent several hours on this but it's probably too boring to detail (but i'll do so if anyone wishes). But anyway, while digging these questions that's not clear in my mind, i thought of why not generate a regex or construct and do it in one shot, and wondered if that'd be faster. But afterwards, i realized this wouldn't be applicable to my problem because for my problem each string needs to be changed to a unique string, not all to the same string. Xah -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested coding style
On Sep 27, 10:25 pm, alex23 wrote: > rantingrick wrote: > > Since, like the bible > > the zen is self contradicting, any argument utilizing the zen can be > > defeated utilizing the zen. > > And like the Bible, the Zen was created by humans as a joke. If you're > taking it too seriously, that's your problem. > > > If however you want to learn about the accepted rules for formatting > > code then you need to read "PEP-8"! PEP 8 is our style guide. > Contradiction is only seen by narrow perspectve. Calling the Bible a joke is used to hurt people, not enlighten them. Those words show bitter arrogance, not constructive critism as it ignores how others feel about that book. What benefit to others is gained by calling someones belief a joke? To put the "believers" minds straight? I think not. I think the unsensitive person who attackes others beliefs, even if illogical or unrealistic, is after some kind of self grandizement or to illude themself into thinking "they know the truth of the universe" and should attack others to prove they do. Although this is not the place to defend about such things it is also not the place to attack those same things (that being someone's faith). There is no real forum to defend a faith or religion, or words in a book about that, other then where such faiths are in fact attacked. However I did laugh at the ironic use of using any-kind of zen to seriously, even Python's, as that is very unzen-like. That is a contradiction by it's very own definitions! -- http://mail.python.org/mailman/listinfo/python-list
Re: how to run in xp?
it can run ,but there is still a problem ,nothing in my file.
please run the code in xp+python32
import urllib.request, urllib.parse, urllib.error
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
url='http://www.nasdaq.com/screening/companies-by-industry.aspx?exchange='+down+'&render=download'
file=urllib.request.urlopen(url).read()
print (file)
what you get is:
>>>
b''
b''
b''
>>>
how to fix it?
-- Original --
From: "Peter Otten"<__pete...@web.de>;
Date: Wed, Sep 28, 2011 04:04 PM
To: "python-list";
Subject: Re: how to run in xp?
=?gbk?B?ytjW6rT9zcM=?= wrote:
> #coding:utf-8
> import urllib
> exchange=['NASDAQ','NYSE','AMEX']
> for down in exchange:
> myfile=open('./'+down,'w')
> url='http://www.nasdaq.com/screening/companies- \
> by-industry.aspx?exchange='+down+'&render=download'
> file=urllib.urlopen(url).read() myfile.write(file)
> print ('ok',down)
> myfile.close()
>
> it can run in ubuntu+python2.6 ,when it run in window xp+python32,the
> output is Traceback (most recent call last):
> File "C:\Python32\getcode.py", line 8, in
> file=urllib.urlopen(url).read()
> AttributeError: 'module' object has no attribute 'urlopen'
>
> i change it into:
> #coding:utf-8
> import urllib.request
> exchange=['NASDAQ','NYSE','AMEX']
> for down in exchange:
> myfile=open('./'+down,'w')
> url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
> file=urllib.request.urlopen(url).read()
> myfile.write(file)
> print ('ok',down)
> myfile.close()
>
> the output is :
> Traceback (most recent call last):
> File "C:\Python32\getcode.py", line 9, in
> myfile.write(file)
> TypeError: must be str, not bytes
>
> how to make it run in xp+python32?
The problem here is the switch from Python 2 to 3. Python 3 has some
backwards-incompatible Syntax changes along with changes to classes and
library organisation. The good news is that there's a tool, 2to3, that can
handle most of these changes:
$ cat getcode.py
#coding:utf-8
import urllib
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
file=urllib.urlopen(url).read()
myfile.write(file)
print 'ok', down
myfile.close()
$ cp getcode.py getcode3.py
$ 2to3-3.2 getcode3.py -w
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
RefactoringTool: Refactored getcode3.py
--- getcode3.py (original)
+++ getcode3.py (refactored)
@@ -1,10 +1,10 @@
#coding:utf-8
-import urllib
+import urllib.request, urllib.parse, urllib.error
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
-file=urllib.urlopen(url).read()
+file=urllib.request.urlopen(url).read()
myfile.write(file)
-print 'ok', down
+print('ok', down)
myfile.close()
RefactoringTool: Files that were modified:
RefactoringTool: getcode3.py
$ cat getcode3.py
#coding:utf-8
import urllib.request, urllib.parse, urllib.error
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
file=urllib.request.urlopen(url).read()
myfile.write(file)
print('ok', down)
myfile.close()
$ python3.2 getcode3.py
ok NASDAQ
ok NYSE
ok AMEX
--
http://mail.python.org/mailman/listinfo/python-list--
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Re: question about speed of sequential string replacement vs regex or
> "Xah" == Xah Lee writes: Xah> curious question. Xah> suppose you have 300 different strings and they need all be replaced Xah> to say "aaa". And then suppose this isn't the *real* question, but one entirely of Fiction by Xah Lee. How helpful do you want to be? -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 http://www.stonehenge.com/merlyn/> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.posterous.com/ for Smalltalk discussion -- http://mail.python.org/mailman/listinfo/python-list
RE: python 2.7.1 HP-UX 11 ia64 built not supporting thread
Hello there, I included --with-threads option into the configure script calling, which it failed to add the -D_REENTRANT into Makefile. So I manually added this into OPT of the Makefile. I ran make again and generated a new python binary. However, the new binary is still not able to start a new thread from the thread module. I reviewed the config.log file, I think this failure has caused the build with threads failed. Cthreads.h header file is missing. Should this be included in my HP UX Compiler or it comes from python source? In python source I only found pythread.h. Anyway, I am only guessing what is wrong. Hope to hear some feedback here, whether this is something missing or a bug. configure:8407: checking for --with-threads configure:8427: result: yes configure:8484: checking for _POSIX_THREADS in unistd.h configure:8503: result: yes configure:8508: checking cthreads.h usability configure:8508: cc +DD64 -I/home/r32813/local/include -c -g conftest.c >&5 "conftest.c", line 128: error #3696-D: cannot open source file "cthreads.h" #include ^ 1 error detected in the compilation of "conftest.c". | #define HAVE_LIBDLD 1 | #define _REENTRANT 1 | /* end confdefs.h. */ | #include configure:8508: result: no configure:8508: checking for cthreads.h configure:8508: result: no configure:8521: checking mach/cthreads.h usability configure:8521: cc +DD64 -I/home/r32813/local/include -c -g conftest.c >&5 "conftest.c", line 128: error #3696-D: cannot open source file "mach/cthreads.h" #include ^ 1 error detected in the compilation of "conftest.c". configure:8521: $? = 2 configure: failed program was: | /* confdefs.h */ | #define _GNU_SOURCE 1 | #define HAVE_LIBDLD 1 | #define _REENTRANT 1 | /* end confdefs.h. */ | #include configure:8521: result: no configure:8521: checking for mach/cthreads.h configure:8521: result: no configure:8533: checking for --with-pth configure:8548: result: no configure:8556: checking for pthread_create in -lpthread configure:8572: cc +DD64 -I/home/r32813/local/include -o conftest -g -L/home/r32813/local/lib -L/home/r32813/Build/2.7.1/Python-2.7.1 conftest.c -l nsl -lrt -ldld -ldl -lpthread >&5 Regards, Wah Meng Genesis Wafermap Support Ticket: To report a problem: http://dyno.freescale.net/Question/QuestionMain3.asp?location=zmy02&category=&tickettype=6820 To request a service: http://dyno.freescale.net/Question/Questionmain3.asp?location=74&category=2&tickettype=6819 Or if it is related to EWM or DSA: http://dyno.freescale.net/Question/Questionmain3.asp?location=ZMY02&tickettype=6539 -Original Message- From: Wong Wah Meng-R32813 Sent: Wednesday, September 28, 2011 4:37 PM To: python-list@python.org Subject: python 2.7.1 built not supporting thread? Hello there, I couldn't detect this problem until I run my application that utilizes thread module in python that I just built on HP-UX 11.31 ia64 using aCC. Could it be the build did not include enable thread option? _REENTRANT as stated in the README file? If yes, it looks like threading may not work "out of the box". >>> thread.start_new_thread(testing, ()) Traceback (most recent call last): File "", line 1, in thread.error: can't start new thread >>> Excerpts from README file for python 2.7 build HP-UX: When using threading, you may have to add -D_REENTRANT to the OPT variable in the top-level Makefile; reported by Pat Knight, this seems to make a difference (at least for HP-UX 10.20) even though pyconfig.h defines it. This seems unnecessary when using HP/UX 11 and later - threading seems to work "out of the box". -- http://mail.python.org/mailman/listinfo/python-list
Re: oauth2 server implementation
On Sep 28, 2:17 am, Roy Smith wrote: > We rolled our own oauth2 client on top of basic urllib calls. It's not > terribly difficult. i'm asking about oauth2 server implementation, not client. it's easy to consume oauth2 stuff but what to do when you need to implement server side stuff? Aljosa -- http://mail.python.org/mailman/listinfo/python-list
Re: question about speed of sequential string replacement vs regex or
On Wed, Sep 28, 2011 at 7:28 PM, Xah Lee wrote: > suppose you have 300 different strings and they need all be replaced > to say "aaa". > > is it faster to replace each one sequentially Before you ask "is it faster", you need to first be sure it's correct. I would recommend doing all the replaces in a single function call to avoid risk of overlaps or other issues causing problems. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
question about speed of sequential string replacement vs regex or
curious question. suppose you have 300 different strings and they need all be replaced to say "aaa". is it faster to replace each one sequentially (i.e. replace first string to aaa, then do the 2nd, 3rd,...) , or is it faster to use a regex with “or” them all and do replace one shot? (i.e. "1ststr|2ndstr|3rdstr|..." -> aaa) let's say the sourceString this replacement to be done on is 500k chars. Anyone? i suppose the answer will be similar for perl, python, ruby. btw, the origin of this question is about writing a emacs lisp function that replace ~250 html named entities to unicode char. Xah -- http://mail.python.org/mailman/listinfo/python-list
python 2.7.1 built not supporting thread?
Hello there, I couldn't detect this problem until I run my application that utilizes thread module in python that I just built on HP-UX 11.31 ia64 using aCC. Could it be the build did not include enable thread option? _REENTRANT as stated in the README file? If yes, it looks like threading may not work "out of the box". >>> thread.start_new_thread(testing, ()) Traceback (most recent call last): File "", line 1, in thread.error: can't start new thread >>> Excerpts from README file for python 2.7 build HP-UX: When using threading, you may have to add -D_REENTRANT to the OPT variable in the top-level Makefile; reported by Pat Knight, this seems to make a difference (at least for HP-UX 10.20) even though pyconfig.h defines it. This seems unnecessary when using HP/UX 11 and later - threading seems to work "out of the box". -- http://mail.python.org/mailman/listinfo/python-list
Re: how to run in xp?
=?gbk?B?ytjW6rT9zcM=?= wrote:
> #coding:utf-8
> import urllib
> exchange=['NASDAQ','NYSE','AMEX']
> for down in exchange:
> myfile=open('./'+down,'w')
> url='http://www.nasdaq.com/screening/companies- \
> by-industry.aspx?exchange='+down+'&render=download'
> file=urllib.urlopen(url).read() myfile.write(file)
> print ('ok',down)
> myfile.close()
>
> it can run in ubuntu+python2.6 ,when it run in window xp+python32,the
> output is Traceback (most recent call last):
> File "C:\Python32\getcode.py", line 8, in
> file=urllib.urlopen(url).read()
> AttributeError: 'module' object has no attribute 'urlopen'
>
> i change it into:
> #coding:utf-8
> import urllib.request
> exchange=['NASDAQ','NYSE','AMEX']
> for down in exchange:
> myfile=open('./'+down,'w')
> url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
> file=urllib.request.urlopen(url).read()
> myfile.write(file)
> print ('ok',down)
> myfile.close()
>
> the output is :
> Traceback (most recent call last):
> File "C:\Python32\getcode.py", line 9, in
> myfile.write(file)
> TypeError: must be str, not bytes
>
> how to make it run in xp+python32?
The problem here is the switch from Python 2 to 3. Python 3 has some
backwards-incompatible Syntax changes along with changes to classes and
library organisation. The good news is that there's a tool, 2to3, that can
handle most of these changes:
$ cat getcode.py
#coding:utf-8
import urllib
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
file=urllib.urlopen(url).read()
myfile.write(file)
print 'ok', down
myfile.close()
$ cp getcode.py getcode3.py
$ 2to3-3.2 getcode3.py -w
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
RefactoringTool: Refactored getcode3.py
--- getcode3.py (original)
+++ getcode3.py (refactored)
@@ -1,10 +1,10 @@
#coding:utf-8
-import urllib
+import urllib.request, urllib.parse, urllib.error
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
-file=urllib.urlopen(url).read()
+file=urllib.request.urlopen(url).read()
myfile.write(file)
-print 'ok', down
+print('ok', down)
myfile.close()
RefactoringTool: Files that were modified:
RefactoringTool: getcode3.py
$ cat getcode3.py
#coding:utf-8
import urllib.request, urllib.parse, urllib.error
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'wb')
url='http://www.nasdaq.com/screening/companies-by-
industry.aspx?exchange='+down+'&render=download'
file=urllib.request.urlopen(url).read()
myfile.write(file)
print('ok', down)
myfile.close()
$ python3.2 getcode3.py
ok NASDAQ
ok NYSE
ok AMEX
--
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Re: Multiplication error in python
On Wed, Sep 28, 2011 at 4:28 PM, Tim Roberts wrote: > My guess is that you actually typed > p=3*a > instead of > p=2*a > > That produces 45. > Or alternatively, that you used an interactive Python environment and didn't clear i between runs. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
how to run in xp?
#coding:utf-8
import urllib
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'w')
url='http://www.nasdaq.com/screening/companies- \
by-industry.aspx?exchange='+down+'&render=download'
file=urllib.urlopen(url).read()
myfile.write(file)
print ('ok',down)
myfile.close()
it can run in ubuntu+python2.6 ,when it run in window xp+python32,the output is
Traceback (most recent call last):
File "C:\Python32\getcode.py", line 8, in
file=urllib.urlopen(url).read()
AttributeError: 'module' object has no attribute 'urlopen'
i change it into:
#coding:utf-8
import urllib.request
exchange=['NASDAQ','NYSE','AMEX']
for down in exchange:
myfile=open('./'+down,'w')
url='http://www.nasdaq.com/screening/companies-by-industry.aspx?exchange='+down+'&render=download'
file=urllib.request.urlopen(url).read()
myfile.write(file)
print ('ok',down)
myfile.close()
the output is :
Traceback (most recent call last):
File "C:\Python32\getcode.py", line 9, in
myfile.write(file)
TypeError: must be str, not bytes
how to make it run in xp+python32?--
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