Re: Pythonic way to iterate through multidimensional space?
On 8/6/2014 1:39 PM, Tim Chase wrote: On 2014-08-06 11:04, Gayathri J wrote: Below is the code I tried to check if itertools.product() was faster than normal nested loops... they arent! arent they supposed to be...or am i making a mistake? I believe something like this was discussed a while ago and there was a faster-but-uglier solution so you might want to consult this thread: https://mail.python.org/pipermail/python-list/2008-January/516109.html I believe this may have taken place before itertools.product() came into existence. Disadvantage of itertools.product() is, that it makes a copy in memory. Reason ist, that itertools also makes products of generators (meaning of objects, that one can't iterate several times through) There are two use cases, that I occasionaly stumble over: One is making the product over lists(), product( list_of_lists ) ex: product( [ [1,2,3], ['A','B'], ['a', 'b', 'c'] ] ) the other one making a product over a list of functions, which will create generators ex: product( [ lambda: [ 'A', 'B' ], lambda: xrange(3) ] ) I personally would also be interested in a fast generic solution that can iterate through an N-dimensional array and which does not duplicate the memory or iterate through a list of generator-factories or however this would be called. -- https://mail.python.org/mailman/listinfo/python-list
Interesting socket behavior
I noticed that if I make a listening socket using SOCK_STREAM | SOCK_NONBLOCK, that the sockets I get after calling listener.accept() don't have the O_NONBLOCK flag set, but checking the result of gettimeout() on the same sockets gives me 0.0, which means they are non blocking. Why is this the case? -- https://mail.python.org/mailman/listinfo/python-list
Re: Syntax Highlighting in a tkinter Text widget
Sweet thanks for the help many I am defiantly going to use these. -- https://mail.python.org/mailman/listinfo/python-list
Re: Practice question
On Sun, 05 Oct 2014 20:07:50 -0400, Seymore4Head wrote: Here is the exact question, I was trying to post something similar. I failed. http://i.imgur.com/iUGh4xf.jpg Please don't post screen shots if you can avoid it. You almost certainly can copy and paste the text from the web page. And if you can't, you can usually re-type the question. It's good practice to strength your typing skills. Screen shots cannot be read by people using a screen reader, or who don't have access to the web (but are reading their mail), or if the host site (in this case, imgur) is down or blocked. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Practice question
On Sun, 05 Oct 2014 20:18:13 -0400, Seymore4Head wrote: I think I get it now. You are using a sample of answers. So you could actually just run through them all. (I haven't tried this yet) for x in range(lo,hi) print((15 = x 30) == (15= x and x 30)) Yes, except using print is probably not the best idea, since you might have dozens of True True True True ... printed, one per line, and if you blink the odd False might have scrolled off screen before you notice. With two numbers, 15 and 30, all you really need is five test cases: - a number lower than the smaller of the two numbers (say, 7); - a number equal to the smaller of the two numbers (that is, 15); - a number between the two numbers (say, 21); - a number equal to the larger of the two numbers (that is, 30); - a number higher than the larger of the two numbers (say, 999); The exact numbers don't matter, so long as you test all five cases. And rather than printing True True True... let's use assert instead: for x in (7, 15, 21, 30, 999): assert (15 = x 30) == (15= x and x 30) If the two cases are equal, assert will do nothing. But if they are unequal, assert will raise an exception and stop, and you know that the two cases are not equivalent and can go on to the next possibility. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Pythonic way to iterate through multidimensional space?
On 10/7/14 2:10 AM, Gelonida N wrote: Disadvantage of itertools.product() is, that it makes a copy in memory. Reason ist, that itertools also makes products of generators (meaning of objects, that one can't iterate several times through) There are two use cases, that I occasionaly stumble over: One is making the product over lists(), product( list_of_lists ) ex: product( [ [1,2,3], ['A','B'], ['a', 'b', 'c'] ] ) the other one making a product over a list of functions, which will create generators ex: product( [ lambda: [ 'A', 'B' ], lambda: xrange(3) ] ) I personally would also be interested in a fast generic solution that can iterate through an N-dimensional array and which does not duplicate the memory or iterate through a list of generator-factories or however this would be called. itertools.product makes a copy of the sequences passed in, but it is a shallow copy. It doesn't copy the objects in the sequences. It also doesn't store the entire product. If you are calling product(j, k, l, m, n), where len(j)==J, the extra memory is J+K+L+M+N, which is much smaller than the number of iterations product will produce. Are you sure that much extra memory use is a problem? How large are your lists that you are product'ing together? I don't understand your point about a list of functions that create generators? What is the problem there? -- Ned Batchelder, http://nedbatchelder.com -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
On Monday, 6 October 2014 21:07:24 UTC+11, roro codeath wrote: in ruby: module M def ins_var @ins_var ||= nil end def m @ins_var = 'val' end def m2 m ins_var # = 'val' end end in py: # m.py # how to def ins_var def m: # how to set ins_var def m2: m() # how to get ins var I took || to be a ternary. So I assumed your code just sets ins_var to nil and then is called in module m and supplied a val. Could be wrong. if ins_var is None: ins_var = 'val' -- https://mail.python.org/mailman/listinfo/python-list
Re: Practice question
Steven D'Aprano wrote: With two numbers, 15 and 30, all you really need is five test cases: My solution assumed integers also, but after I posted it, I thought: What about floating points? On Tue, Oct 7, 2014 at 1:48 AM, Steven D'Aprano st...@pearwood.info wrote: On Sun, 05 Oct 2014 20:18:13 -0400, Seymore4Head wrote: I think I get it now. You are using a sample of answers. So you could actually just run through them all. (I haven't tried this yet) for x in range(lo,hi) print((15 = x 30) == (15= x and x 30)) Yes, except using print is probably not the best idea, since you might have dozens of True True True True ... printed, one per line, and if you blink the odd False might have scrolled off screen before you notice. With two numbers, 15 and 30, all you really need is five test cases: - a number lower than the smaller of the two numbers (say, 7); - a number equal to the smaller of the two numbers (that is, 15); - a number between the two numbers (say, 21); - a number equal to the larger of the two numbers (that is, 30); - a number higher than the larger of the two numbers (say, 999); The exact numbers don't matter, so long as you test all five cases. And rather than printing True True True... let's use assert instead: for x in (7, 15, 21, 30, 999): assert (15 = x 30) == (15= x and x 30) If the two cases are equal, assert will do nothing. But if they are unequal, assert will raise an exception and stop, and you know that the two cases are not equivalent and can go on to the next possibility. -- Steven -- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
flebber writes: On Monday, 6 October 2014 21:07:24 UTC+11, roro codeath wrote: in ruby: module M def ins_var @ins_var ||= nil end ... I took || to be a ternary. So I assumed your code just sets ins_var to nil and then is called in module m and supplied a val. Could be wrong. if ins_var is None: ins_var = 'val' Just out of interest, please, do you think the word 'ternary' is more or less synonymous with 'conditional'? I'm not being sarcastic. This possibility just occurred to me, and the world will begin to make more sense to me if it turns out that there are people who simply do not think 'three' when they think 'ternary'. -- https://mail.python.org/mailman/listinfo/python-list
add noise using python
can someone teach me how to generate noisy images by applying Gaussian random noise onto an image? -- https://mail.python.org/mailman/listinfo/python-list
Muddleheaded use of the built-in term
I always thought the builtin objects were those we can get from the
`builtins` module, that is those always available. In fact the Built-in
Functions documentation:
https://docs.python.org/3/library/functions.html
says: The Python interpreter has a number of functions and types
built into it that are always available. They are listed here in
alphabetical order. The functions in the documentation list, as
expected, are the same functions we get from the `builtins` module.
Now, is `math.sin` builtin? Of course not, because it is not an
attribute of builtins:
import builtins
hasattr(builtins, 'sin')
False
and in fact it is not always available:
sin
Traceback (most recent call last):
...
NameError: name 'sin' is not defined
But what happens if I want to check by using `inspect.isbuiltin`? The
answer surprises me:
import inspect
print(inspect.isbuiltin.__doc__.split('\n')[0])
Return true if the object is a built-in function or method.
import math
inspect.isbuiltin(math.sin)
True
That's because the term built-in here means written in C, as
explained here:
https://docs.python.org/3/library/types.html#types.BuiltinMethodType
So, we have built-in objects that are always available, whose names live
in the builtin namespace, and other built-in objects that do not live in
the builtin namespace :/ By using the same word (built-in) to indicate
either objects written in C or objects referenced by the builtin
namespace could be a bit muddler for everyone, beginner or not. Is it
too late for changing the name of the `builtin` namespace in something
like, for instance, `root` namespace, or using the name core
(inspect.iscore(), types.CoreFunctionType, ecc.) to indicate written in C?
--
Marco Buttu
--
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Re: add noise using python
On Wed, Oct 8, 2014 at 12:24 AM, mthaqif...@gmail.com wrote: can someone teach me how to generate noisy images by applying Gaussian random noise onto an image? http://www.lmgtfy.com/?q=python+image+gaussian+random+noise ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Muddleheaded use of the built-in term
On Wed, Oct 8, 2014 at 12:24 AM, Marco Buttu marco.bu...@gmail.com wrote: Is it too late for changing the name of the `builtin` namespace in something like, for instance, `root` namespace, or using the name core (inspect.iscore(), types.CoreFunctionType, ecc.) to indicate written in C? Yes, I think it's too late to change that. But it's no different from any other word that has more than one variant of meaning; you have to cope with the collisions. Is there any situation where it's ambiguous? There are builtin name bindings, and there are built-in functions. The former are provided by the language core and are thus available by default; the latter are provided by the language core and thus do not provide __code__. There's a connection between the meanings, but they aren't identical. What's a function? Obviously something created with def or lambda is. Is a class a function? Is an object with a __call__ method a function? Is a list comprehension a function? In different senses, all of them are; but maybe what you want to ask is not is this a function but is this callable (list comps aren't), or does this create a new local scope, or does this have __code__ or something. Yet the meanings of function are all related (mostly by external usage; list comps by internal functionality), so it wouldn't make sense to decry the collisions on that word. I do see your issue, but I don't think this can be changed, nor is worth changing. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Muddleheaded use of the built-in term
I always thought the builtin objects were those we can get from the
`builtins` module, that is those always available. In fact the Built-in
Functions documentation:
https://docs.python.org/3/library/functions.html
says: The Python interpreter has a number of functions and types
built into it that are always available. They are listed here in
alphabetical order. The functions in the documentation list, as
expected, are the same functions we get from the `builtins` module.
Now, is `math.sin` builtin? Of course not, because it is not an
attribute of builtins:
import builtins
hasattr(builtins, 'sin')
False
and in fact it is not always available:
sin
Traceback (most recent call last):
...
NameError: name 'sin' is not defined
But what happens if I want to check by using `inspect.isbuiltin()`? The
answer surprises me:
import inspect
print(inspect.isbuiltin.__doc__.split('\n')[0])
Return true if the object is a built-in function or method.
import math
inspect.isbuiltin(math.sin)
True
That's because the term built-in here means written in C, as
explained in the doc:
https://docs.python.org/3/library/types.html#types.BuiltinMethodType
So, we have built-in objects that are always available, whose names live
in the builtin namespace, and other built-in objects that do not live in
the builtin namespace :/ By using the same word (built-in) to indicate
either objects written in C or objects referenced by the builtin
namespace could be a bit muddler for everyone, beginner or not. Is it
too late for changing the name of the `builtin` namespace in something
like, for instance, `root` namespace, or using the name core
(inspect.iscore(), types.CoreFunctionType, ecc.) to indicate written in
C or whatever underlying language?
--
Marco Buttu
INAF-Osservatorio Astronomico di Cagliari
Via della Scienza n. 5, 09047 Selargius (CA)
Phone: 070 711 80 217
Email: mbu...@oa-cagliari.inaf.it
--
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How do I check if a string is a prefix of any possible other string that matches a given regex.
Hi everyone, Probably I'm turning the use of regular expressions upside down with this question. I don't want to write a regex that matches prefixes of other strings, I know how to do that. I want to generate a regex -- given another regex --, that matches all possible strings that are a prefix of a string that matches the given regex. E.g. You have the regex ^[a-z]*4R$ then the strings a, ab, A4 ab4 are prefixes of this regex (because there is a way of adding characters that causes the regex to match), but 4a or a44 or not. How do I programmatically create a regex that matches a, ab, A4, etc.. but not 4a, a44, etc.. Logically, I'd think it should be possible by running the input string against the state machine that the given regex describes, and if at some point all the input characters are consumed, it's a match. (We don't have to run the regex until the end.) But I cannot find any library that does it... Thanks a lot, if anyone knows the answer to this question! Cheers, Jonathan -- https://mail.python.org/mailman/listinfo/python-list
Re: How do I check if a string is a prefix of any possible other string that matches a given regex.
On 7 October 2014 17:15, jonathan.slend...@gmail.com wrote: Probably I'm turning the use of regular expressions upside down with this question. I don't want to write a regex that matches prefixes of other strings, I know how to do that. I want to generate a regex -- given another regex --, that matches all possible strings that are a prefix of a string that matches the given regex. [...] Logically, I'd think it should be possible by running the input string against the state machine that the given regex describes, and if at some point all the input characters are consumed, it's a match. (We don't have to run the regex until the end.) But I cannot find any library that does it... How wide a net are you counting regular expressions to be? What grammar are you using? -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.4.1 on W2K?
Tim G.: Of course, if you're happy to work with a slightly older version of Python, such as 3.2, then you should be fine. Well, I just installed 3.2.5 in W2K and all of my stuff seems to work. I'm a happy camper. Many thanks for the information and link! ChrisA: Wow. I wonder, since you're already poking around with extremely legacy stuff, would it be easier for you to use OS/2 instead of Win2K? Paul Smedley still produces OS/2 builds of Python, and OS/2 itself runs happily under VirtualBox (we have an OS/2 VM still on our network here, and I use Python to manage its backups). Might not end up any better than your current system, but it might be! That's actually an interesting idea. OS/2 was our OS of choice in the '90s. XyWrite ran beautifully under it, and when we needed extensions to the XyWrite Programming Language (XPL) we used Rexx (RexXPL). Since last year I've been using Python instead (XPyL). The fact is, though, most XyWriters are running XyWrite under Windows, except for the few running it under Linux. Much of our script development since then has focused on integrating Xy with Windows, so to revert to OS/2 would be swimming against the tide. But I may just try it anyway! Thanks, guys. Pal A. -- https://mail.python.org/mailman/listinfo/python-list
Re: How do I check if a string is a prefix of any possible other string that matches a given regex.
On Tue, Oct 7, 2014 at 10:15 AM, jonathan.slend...@gmail.com wrote: Logically, I'd think it should be possible by running the input string against the state machine that the given regex describes, and if at some point all the input characters are consumed, it's a match. (We don't have to run the regex until the end.) But I cannot find any library that does it... Strictly speaking, a DFA or NFA always consumes the entire input; the question of interest is whether it halts in an accepting state or not. It would be easy to transform a DFA or NFA in the manner that you want, though. For each non-accepting state, determine whether it has any transitions that lead in one or more steps to an accepting state. Modify the FSM so that each such state is also an accepting state. -- https://mail.python.org/mailman/listinfo/python-list
Need some direction in completing the exercise below, appreciate any input given, thanks!
The aim of this exercise is to combine the sample database, click tracking
information from a test website and application, and information from user's
social networks.
The sample database contains the following fields and is made up of 500 records.
first_name, last_name, company_name, address, city, county,
state, zip, phone1, phone2, email, web
Here are the instructions:
1) Download the US500 database from http://www.briandunning.com/sample-data/
2) Use the exchange portion of the telephone numbers (the middle three digits)
as the proxy for user clicked on and expressed interest in this topic.
Identify groups of users that share topic interests (exchange numbers match).
3) Provide an API that takes an e-mail address an input, and returns the e-mail
addresses of other users that share that interest.
4) Extend that API to return users within a certain distance N of that
interest. For example, if the original user has an interest in group 236, and N
is 2, return all users with interests in 234 through 238.
5) Identify and rank the states with the largest groups, and (separately) the
largest number of groups.
6) Provide one or more demonstrations that the API works. These can be via a
testing framework, and/or a quick and dirty web or command line client, or
simply by driving it from a browser and showing a raw result.
I was able to import the data this way, however I know there's a better method
using the CSV module. The code below just reads lines, I'd like to be able to
split each individual field into columns and assign primary and foreign keys in
order to solve the challenge. What's the best method to accomplish this task?
import os, csv, json, re
class fetch500(): # class
instantiation
def __init__(self): # initializes
data import object
US_500file = open('us-500.csv')
us_500list = US_500file.readlines()
for column in us_500list:
print column, # prints
out phone1 array
data_import = fetch500()
print fetch500()
--
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Re: Python 3.4.1 on W2K?
On 10/05/2014 06:04 PM, Pal Acreide wrote: BTW, the reason I run VBox is that I belong to a group of diehard users of the classic DOS word-processor XyWrite. I've devised a way to use Python as an extension of XyWrite's built-in Programming Language (XPL): http://users.datarealm.com/xywwweb/xypydoc.htm That's really interesting. I looked briefly at the page. How does your python extension work with xywrite? Does it manipulate xywrite documents or does it tie in at runtime with Xywrite somehow? If so, how does it do this? Crossing the divide into a 16-bit app is pretty impressive. I wonder how well your system could be made to work with dosbox. Dosbox runs xywrite on any platform (even non x86 like a tablet). I'm not sure how you'd interface dosbox with python on the host though. -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.4.1 on W2K?
On Tue, Oct 7, 2014, at 16:27, Michael Torrie wrote: That's really interesting. I looked briefly at the page. How does your python extension work with xywrite? Does it manipulate xywrite documents or does it tie in at runtime with Xywrite somehow? If so, how does it do this? Crossing the divide into a 16-bit app is pretty impressive. I assume that it uses temporary files (or pipes, don't know if DOS can do this), and that DOS programs can execute windows programs with int 21/4B. -- https://mail.python.org/mailman/listinfo/python-list
Re: Timezones
On Mon, 6 Oct 2014 13:48:58 +1100, Chris Angelico ros...@gmail.com wrote: On Mon, Oct 6, 2014 at 1:37 PM, Rustom Mody rustompm...@gmail.com wrote: My advice is to avoid time zones, they're a real pain, seriously. What say we send an application to the UN to declare the world flat? Easier to simply start scheduling things in UTC. I run an international Dungeons Dragons campaign with sessions every Sunday at 02:00 UTC, and nobody needs to be confused by time zones. (The server displays UTC time, so it's easy for anyone to see; for instance, it's now Mon 02:48:09, so session time was about this time yesterday.) Civil time can do whatever it likes, just as long as everyone knows that the meeting is based on UTC. ChrisA And I just found out there is going to be another Y2K in 2038. I hope I am around to see it. I spend this Y2K in Las Vegas. Las Vegas is one of the last few time zones so TVs everywhere were showing the ringing in of the New Year and nothing was exploding. -- https://mail.python.org/mailman/listinfo/python-list
Re: How do I check if a string is a prefix of any possible other string that matches a given regex.
Logically, I'd think it should be possible by running the input string against the state machine that the given regex describes, and if at some point all the input characters are consumed, it's a match. (We don't have to run the regex until the end.) But I cannot find any library that does it... Strictly speaking, a DFA or NFA always consumes the entire input; the question of interest is whether it halts in an accepting state or not. It would be easy to transform a DFA or NFA in the manner that you want, though. For each non-accepting state, determine whether it has any transitions that lead in one or more steps to an accepting state. Modify the FSM so that each such state is also an accepting state. Thanks, I'll make every state of the FSM an accepting state. My use case is to implement autocompletion for a regular language. So I think if the input is accepted by the FSM that I build, it's a valid prefix, and the autocompletion can be generated by looking at which transitions are possible at that point. More pointers are welcome, but I think that I have enough to start the implementation. -- https://mail.python.org/mailman/listinfo/python-list
Another time question
I never really cared enough to ask anyone, but something like my cable bill is 98$ a month. Do companies (in general) consider a month every 30 days or every time the 14th comes around? I did rent a car once during a time change and I only got to keep the car 23 hours. As another side note I have had drug prescripts that were 28 days was considered a month supply. The would be 4 weeks instead of one month. -- https://mail.python.org/mailman/listinfo/python-list
Re: Another time question
On Wed, Oct 8, 2014 at 10:12 AM, Seymore4Head Seymore4Head@hotmail.invalid wrote: I never really cared enough to ask anyone, but something like my cable bill is 98$ a month. Do companies (in general) consider a month every 30 days or every time the 14th comes around? I did rent a car once during a time change and I only got to keep the car 23 hours. As another side note I have had drug prescripts that were 28 days was considered a month supply. The would be 4 weeks instead of one month. I'm not sure how this connects to Python, but I'll assume for now you're trying to do something up as a script and just haven't told us that bit... With periodic recurring charges, it's common for month to mean calendar month, resetting every Nth of the month (often 1st, but any day works). If your mobile data plan costs $35/month and allows you 7GB/month throughput, both those figures will be per calendar month. For the rest, it depends on what the company's doing. Presumably drug prescriptions are primarily done on a weekly basis; car rentals will be on a daily basis. They're not going to say cars have to be returned by 8AM, except during DST when they must be returned by 9AM, because that's just messy; so one day a year, you get an extra hour, and one day a year, you lose an hour. If you tell us what the code is you're trying to work on, we might be able to advise more usefully. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: How do I check if a string is a prefix of any possible other string that matches a given regex.
On 2014-10-07 22:48, jonathan.slend...@gmail.com wrote: Logically, I'd think it should be possible by running the input string against the state machine that the given regex describes, and if at some point all the input characters are consumed, it's a match. (We don't have to run the regex until the end.) But I cannot find any library that does it... Strictly speaking, a DFA or NFA always consumes the entire input; the question of interest is whether it halts in an accepting state or not. It would be easy to transform a DFA or NFA in the manner that you want, though. For each non-accepting state, determine whether it has any transitions that lead in one or more steps to an accepting state. Modify the FSM so that each such state is also an accepting state. Thanks, I'll make every state of the FSM an accepting state. My use case is to implement autocompletion for a regular language. So I think if the input is accepted by the FSM that I build, it's a valid prefix, and the autocompletion can be generated by looking at which transitions are possible at that point. More pointers are welcome, but I think that I have enough to start the implementation. If you're not interested in generating an actual regex, but only in matching the prefix, then it sounds like you want partial matching. The regex module supports that: https://pypi.python.org/pypi/regex -- https://mail.python.org/mailman/listinfo/python-list
Re: Another time question
On Wed, 8 Oct 2014 10:21:10 +1100, Chris Angelico ros...@gmail.com wrote: On Wed, Oct 8, 2014 at 10:12 AM, Seymore4Head Seymore4Head@hotmail.invalid wrote: I never really cared enough to ask anyone, but something like my cable bill is 98$ a month. Do companies (in general) consider a month every 30 days or every time the 14th comes around? I did rent a car once during a time change and I only got to keep the car 23 hours. As another side note I have had drug prescripts that were 28 days was considered a month supply. The would be 4 weeks instead of one month. I'm not sure how this connects to Python, but I'll assume for now you're trying to do something up as a script and just haven't told us that bit... With periodic recurring charges, it's common for month to mean calendar month, resetting every Nth of the month (often 1st, but any day works). If your mobile data plan costs $35/month and allows you 7GB/month throughput, both those figures will be per calendar month. For the rest, it depends on what the company's doing. Presumably drug prescriptions are primarily done on a weekly basis; car rentals will be on a daily basis. They're not going to say cars have to be returned by 8AM, except during DST when they must be returned by 9AM, because that's just messy; so one day a year, you get an extra hour, and one day a year, you lose an hour. If you tell us what the code is you're trying to work on, we might be able to advise more usefully. ChrisA Actually, the simple python code I am working on is not required to consider those complicated questions, but it still causes me to ponder them. -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
I thought that it was a shortcut in ruby to negate the other option of providing another default . I don't greatly know ruby but took a guess after reading examples here https://blog.neowork.com/ruby-shortcuts -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
flebber wrote: I thought that it was a shortcut in ruby to negate the other option of providing another default . I'm afraid I can't work out what that sentence means, to negate the other option of providing *another* default? How many defaults are you providing? Then you negate *the option*, does that mean that you're not actually providing a default? Also, since you haven't quoted the person you are responding to, there is no context to your response. The end result of a confusing sentence with no context is that I have no idea what you are trying to say. Could you try explaining again please? -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Another time question
Seymore4Head wrote: I never really cared enough to ask anyone, but something like my cable bill is 98$ a month. Do companies (in general) consider a month every 30 days or every time the 14th comes around? What does this have to do with Python? Companies do whatever they want. Some of them consider a month to start from the 1st and end at the end of the month, some of them take 30 days from the date you started, some of them 31 days from when you start, or 28 days (four weeks). Some of them have a fixed starting date. Some of them don't. Some bill you fortnightly, or weekly, or yearly. I did rent a car once during a time change and I only got to keep the car 23 hours. I'm not sure how that is relevant to either Python or what companies consider a month, but okay. As another side note I have had drug prescripts that were 28 days was considered a month supply. The would be 4 weeks instead of one month. Okay. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
operator module functions
Every Python operator has a function version in the operator module: operator + has function operator.add; operator - has function operator.sub; operator * has function operator.mul; and so forth. Only, that's not quite right... according to the documentation, the official functions are actually: operator.__add__; operator.__sub__; operator.__mul__; etc., with the underscore-less versions being provided as a convenience. Was anyone aware of this? It came as a surprise to me. Is there anyone who uses or prefers the dunder versions? -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Perl Template Toolkit: Now in spicy new Python flavor
Sorry, is anyone else having trouble opening the README.txt? On Monday, January 14, 2008 6:00:52 PM UTC-5, eef...@gmail.com wrote: I'd like to inform the Python community that the powerful and popular Template Toolkit system, previously available only in its original Perl implementation, is now also available in a beta Python implementation: http://tt2.org/python/index.html I created this port both as a fun programming project, and for use in environments where Perl is not available, for reasons technical, cultural, or otherwise. The extensive Perl test suites have also been ported, and most templates require no or very little modification. Discussion of the Python implementation should be conducted on the main Template Toolkit developer mailing list; see the site above for details. -- https://mail.python.org/mailman/listinfo/python-list
Re: Perl Template Toolkit: Now in spicy new Python flavor
On Wed, Oct 8, 2014 at 12:51 PM, joshua.higgins@gmail.com wrote: Sorry, is anyone else having trouble opening the README.txt? On Monday, January 14, 2008 6:00:52 PM UTC-5, eef...@gmail.com wrote: I'd like to inform the Python community that the powerful and popular Template Toolkit system, previously available only in its original Perl implementation, is now also available in a beta Python implementation: http://tt2.org/python/index.html I created this port both as a fun programming project, and for use in environments where Perl is not available, for reasons technical, cultural, or otherwise. The extensive Perl test suites have also been ported, and most templates require no or very little modification. Discussion of the Python implementation should be conducted on the main Template Toolkit developer mailing list; see the site above for details. You're top-posting from Google Groups in response to a six-year-old post. At least you provided us with some context. But you're looking at something pretty ancient, so a more appropriate response would be to first search the web to see if the URL's changed, and if you're still having trouble, to ask (as a brand new thread) something like I found this from six years ago, does anyone know if it's still active?. We here on comp.lang.python / python-list don't have the power to help you; you need the original author, whose contact details can probably be found by poking around on the web site you quoted the link to. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.4.1 on W2K?
On 10/07/2014 02:33 PM, random...@fastmail.us wrote: On Tue, Oct 7, 2014, at 16:27, Michael Torrie wrote: That's really interesting. I looked briefly at the page. How does your python extension work with xywrite? Does it manipulate xywrite documents or does it tie in at runtime with Xywrite somehow? If so, how does it do this? Crossing the divide into a 16-bit app is pretty impressive. I assume that it uses temporary files (or pipes, don't know if DOS can do this), and that DOS programs can execute windows programs with int 21/4B. dosemu has the ability to execute linux shell commands, I know. Dosbox does not, unfortunately. It be nice to have such a facility. Then xywrite fans could have xywrite on any platform, not just windows. I suppose one could hack together a way of doing it via the dosbox IPX networking facilities. -- https://mail.python.org/mailman/listinfo/python-list
help with regex
I want the last 1 I can't this to work: pattern=re.compile( (\d+)$ ) match=pattern.match( LINE: 235 : Primary Shelf Number (attempt 1): 1) print match.group() -- https://mail.python.org/mailman/listinfo/python-list
[issue22568] Use of utime as variable name in Modules/posixmodule.c causes errors
Georg Brandl added the comment: Patch LGTM. -- nosy: +georg.brandl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22568 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18119] urllib.FancyURLopener does not treat URL fragments correctly
karl added the comment: OK I fixed the code. The issue is here https://hg.python.org/cpython/file/1e1c6e306eb4/Lib/urllib/request.py#l656 newurl = urlunparse(urlparts) Basically it reinjects the fragment in the new url. The fix is easy. if urlparts.fragment: urlparts = list(urlparts) urlparts[5] = newurl = urlunparse(urlparts) I was trying to make a test for it, but failed. Could someone help me for the test so I can complete the patch? Added the code patch only. -- keywords: +patch Added file: http://bugs.python.org/file36832/issue18119-code-only.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18119 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12458] Tracebacks should contain the first line of continuation lines
Changes by Giampaolo Rodola' g.rod...@gmail.com: -- stage: test needed - needs patch versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12458 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22571] Remove import * recommendations and examples in doc?
Mark Dickinson added the comment: I think it's fine to recommend using (for example) ` from decimal import *` at the command-line prompt when experimenting with a module. It's a quick way to get yourself into a state where you can easily experiment with that module and its features. That's not the same as recommending that scripts using the decimal module start with from decimal import *, of course. -- nosy: +mark.dickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22571 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22294] 2to3 consuming_calls: len, min, max, zip, map, reduce, filter, dict, xrange
Changes by Edward O edoubray...@gmail.com: -- nosy: +BreamoreBoy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22294 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22574] super() and del in the same method leads to UnboundLocalError
New submission from Pierre-Antoine BRAMERET: Hi, With the following code: class Base(object): pass class Foo(Base): def __init__(self): super(Foo,self).__init__() if False: del Foo I expect that Foo() would give me a Foo instance. Instead, it raises the following exception: Traceback (most recent call last): File stdin, line 1, in module File stdin, line 3, in __init__ super(Foo,self).__init__() UnboundLocalError: local variable 'Foo' referenced before assignment I first suspected the del Foo statement is executed before the function is executed (while parsing or something), because the error tells Foo does not exists. Howver, the problem is deeper than that: with the following modified code: class Foo(Base): def __init__(self): assert 'Foo' in globals() assert Foo super(Foo,self).__init__() if False: del Foo Traceback (most recent call last): File stdin, line 1, in module File stdin, line 4, in __init__ super(Foo,self).__init__() UnboundLocalError: local variable 'Foo' referenced before assignment So: Foo IS in globals(), but cannot be accessed through Foo in the class because of the presence of 'del Foo' in the never reached part of the method. -- messages: 228757 nosy: Miaou priority: normal severity: normal status: open title: super() and del in the same method leads to UnboundLocalError versions: Python 2.7, Python 3.2, Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22574 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22572] NoneType object is not iterable error when asyncio Server.close() called
STINNER Victor added the comment: Using call_soon_threadsafe from an addCleanup in the _server method makes it work for me. Maybe the documentation on thread safety should be improved? More warnings should be put in the documentation? https://docs.python.org/dev/library/asyncio-dev.html#concurrency-and-multithreading -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22572 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22574] super() and del in the same method leads to UnboundLocalError
Pierre-Antoine BRAMERET added the comment: Sorry, I miscopied the last Traceback. Please find the following: Traceback (most recent call last): File stdin, line 1, in module File stdin, line 4, in __init__ assert Foo UnboundLocalError: local variable 'Foo' referenced before assignment -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22574 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22572] NoneType object is not iterable error when asyncio Server.close() called
STINNER Victor added the comment: Maybe we should more checks in debug mode in the Server class? For example, loop.call_soon() raises an AssertionError if it is called from the wrong thread in debug mode. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22572 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18216] gettext doesn't check MO versions
Jakub Wilk added the comment: The patch hardcodes 5 as version number in the exception message. The specifiction also says that an unexpected minor revision number means that the file can be read but will not reveal its full contents, when parsed by a program that supports only smaller minor revision numbers. So I think a reasonable thing to do is to accept MO files with an expected major revision but an unexpected minor revision. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18216 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22572] NoneType object is not iterable error when asyncio Server.close() called
STINNER Victor added the comment: Oh, I didn't notice that waiter_bug.py does nothing :-) I added unittest.main(). With PYTHONASYNCIODEBUG=1, I get *two* errors, maybe we don't need to add more checks in debug mode. Again, maybe the debug mode should be better documented? https://docs.python.org/dev/library/asyncio-dev.html#debug-mode-of-asyncio Currently, it's at the end of the documentation. ERROR:asyncio:CoroWrapper Server.wait_closed() running at /home/haypo/prog/python/default/Lib/asyncio/base_events.py:143, created at waiter_bug.py:32 was never yielded from Coroutine object created at (most recent call last): File waiter_bug.py, line 43, in module unittest.main() File /home/haypo/prog/python/default/Lib/unittest/main.py, line 93, in __init__ self.runTests() File /home/haypo/prog/python/default/Lib/unittest/main.py, line 244, in runTests self.result = testRunner.run(self.test) File /home/haypo/prog/python/default/Lib/unittest/runner.py, line 168, in run test(result) File /home/haypo/prog/python/default/Lib/unittest/suite.py, line 87, in __call__ return self.run(*args, **kwds) File /home/haypo/prog/python/default/Lib/unittest/suite.py, line 125, in run test(result) File /home/haypo/prog/python/default/Lib/unittest/suite.py, line 87, in __call__ return self.run(*args, **kwds) File /home/haypo/prog/python/default/Lib/unittest/suite.py, line 125, in run test(result) File /home/haypo/prog/python/default/Lib/unittest/case.py, line 625, in __call__ return self.run(*args, **kwds) File /home/haypo/prog/python/default/Lib/unittest/case.py, line 582, in run self.doCleanups() File /home/haypo/prog/python/default/Lib/unittest/case.py, line 618, in doCleanups function(*args, **kwargs) File waiter_bug.py, line 32, in _stop_server self.server.wait_closed() DEBUG:asyncio:Using selector: EpollSelector E == ERROR: test_version (__main__.Test) -- Traceback (most recent call last): File waiter_bug.py, line 33, in _stop_server self.server_loop.stop() File /home/haypo/prog/python/default/Lib/asyncio/base_events.py, line 285, in stop self.call_soon(_raise_stop_error) File /home/haypo/prog/python/default/Lib/asyncio/base_events.py, line 373, in call_soon handle = self._call_soon(callback, args, check_loop=True) File /home/haypo/prog/python/default/Lib/asyncio/base_events.py, line 382, in _call_soon self._assert_is_current_event_loop() File /home/haypo/prog/python/default/Lib/asyncio/base_events.py, line 404, in _assert_is_current_event_loop Non-thread-safe operation invoked on an event loop other RuntimeError: Non-thread-safe operation invoked on an event loop other than the current one -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22572 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22564] ssl: post-commit review of the new memory BIO API
STINNER Victor added the comment: For total cleanness maybe the constructor should raise a TypeError if server_hostname is passes as a bytes. Oh. So there are two attributes? SSLSocket.server_hostname and SSLSocket._sslobj.server_hostname? The constructor should make sure that both are consistent (ex: initialize SSLSocket.server_hostname from sslobj.server_hostname), or SSLSocket.server_hostname should be a property reading SSLSocket._sslobj.server_hostname (or a getter/setter if we should be able to modify it). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22564 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22574] super() and del in the same method leads to UnboundLocalError
Mark Dickinson added the comment: So while the behaviour is surprising, the language is behaving as designed: the target of `del` is considered to be a local variable for the entire function definition. (In much the same way, the targets of simple assignments are considered local, so if you'd assigned to Foo in the if False: block, you'd see the same error.) The behaviour is documented here: https://docs.python.org/3.4/reference/executionmodel.html#naming-and-binding Note particularly these bits: If a name is bound in a block, it is a local variable of that block, [...] A target occurring in a del statement is also considered bound for this purpose [...] See also this FAQ: https://docs.python.org/3/faq/programming.html#id8 I wonder whether it's worth updating the FAQ to mention that `del` is considered to bind names in this way. -- nosy: +mark.dickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22574 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22568] Use of utime as variable name in Modules/posixmodule.c causes errors
Changes by STINNER Victor victor.stin...@gmail.com: -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22568 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7830] Flatten nested functools.partial
Changes by STINNER Victor victor.stin...@gmail.com: -- nosy: +haypo type: enhancement - performance ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7830 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22572] NoneType object is not iterable error when asyncio Server.close() called
R. David Murray added the comment: Yes, documenting it at the beginning would be good. I haven't gotten to the end of the docs yet, I like to experiment as I go along :) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22572 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22574] super() and del in the same method leads to UnboundLocalError
Pierre-Antoine BRAMERET added the comment: Hi, Tanks for your clear answer. I find it surprising that del bounds the name locally, but with little more thinking, it is not... -- resolution: - not a bug status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22574 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18161] call fchdir if subprocess.Popen(cwd=integer|fileobject)
Changes by STINNER Victor victor.stin...@gmail.com: -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18161 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22570] Better stdlib support for Path objects
Brett Cannon added the comment: I think I'm missing something here because the idea of doing `path = str(path)` at the API boundary for an old function to support both Path and str objects for paths seems fairly minimal. Only when manipulating a path is wanting a Path object going to come up, and in that case can't you just do `path = pathlib.Path(path)` instead? -- nosy: +brett.cannon ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22570 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22570] Better stdlib support for Path objects
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti type: - enhancement ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22570 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18216] gettext doesn't check MO versions
Aaron Hill added the comment: That sounds good. Should a warning be thrown for an unexpected minor revision? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18216 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12067] Doc: remove errors about mixed-type comparisons.
Andy Maier added the comment: Just wanted to say that i will continue working on this, working in the comments made so far... Andy -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12067 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22297] 2.7 json encoding broken for enums
Edward O added the comment: The arguments for fixing: * int subclasses overriding str is a very common usecase for enums (so much so that it was added to stdlib in 3.4). * json supporting a standard type of a subsequent python version, though not mandatory, would be beneficial to Py2/Py3 compatibility. * fixing this cannot break existing code * the fix could theoretically be done to 3.0-3.3 if Ethan's argument is deemed important. -- status: pending - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22297 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22575] bytearray documentation confuses string for unicode objects
New submission from Martijn Pieters: The Python 2 version of the bytearray() documentation appears to be copied directly from its Python 3 counterpart and states that when passing in a string an encoding is required: * If it is a string, you must also give the encoding (and optionally, errors) parameters; bytearray() then converts the string to bytes using str.encode(). (from https://docs.python.org/2/library/functions.html#bytearray). This obviously doesn't apply to Python 2 str() objects, but would only apply to unicode() objects. Can this be corrected? The current wording is confusing new users (see http://stackoverflow.com/questions/26230745/how-to-convert-python-str-to-bytearray). -- assignee: docs@python components: Documentation messages: 228771 nosy: docs@python, mjpieters priority: normal severity: normal status: open title: bytearray documentation confuses string for unicode objects versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22575 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22534] bsddb memory leak with MacPorts bdb 4.6
Changes by Jesús Cea Avión j...@jcea.es: -- nosy: +jcea ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22534 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22477] GCD in Fractions
Stefan Behnel added the comment: it might be worth at least considering how a 'one or more parameter' gcd compares on performance grounds with a two parameter one. There shouldn't be a difference in practice. The bulk of the work is in the algorithm that finds the GCD of two numbers, and finding the GCD of multiple numbers is simply functools.reduce(math.gcd, seq_of_numbers) Since the most common use case is finding the GCD of two numbers, I don't see a reason to burden the implementation with a special case here. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22477 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22576] ftplib documentation gives a wrong argument name for storbinary
New submission from Derek Kurth: The Python 3 documentation for ftplib gives the storbinary method signature as: FTP.storbinary(cmd, file, blocksize=8192, callback=None, rest=None) However, the parameter named file is actually named fp in the code, so if you do something like this: ftp.storbinary(cmd=RETR something.txt, file=f) then you will get a TypeError: storbinary() got an unexpected keyword argument 'file'. I think the documentation should be updated to call that argument fp instead of file. -- assignee: docs@python components: Documentation messages: 228773 nosy: Derek.Kurth, docs@python priority: normal severity: normal status: open title: ftplib documentation gives a wrong argument name for storbinary versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22576 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22462] Modules/pyexpat.c violates PEP 384
Antoine Pitrou added the comment: Here is an updated patch with a test. -- Added file: http://bugs.python.org/file36833/expat_traceback.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22462 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22524] PEP 471 implementation: os.scandir() directory scanning function
STINNER Victor added the comment: Hi Ben, I started to review your patch, sorry for the delay :-( It's convinient to have the patch on Rietveld to comment it inline. I didn't expect so much C code. The posixmodule.c is really huge. Well, it's just the longest C file of Python 3.5. Your patch adds 781 more lines to it. It's maybe time to split the file into smaller files. At the same time, reading C code is boring and it's too easy to implement bugs. I need to be convinced that the speedup announced in the PEP requires so much C code. In the PEP and https://github.com/benhoyt/scandir#benchmarks it's not clear if the speedup comes from the C code (instead of implementing scandir in pure Python, for example using ctypes) or the lower number of syscalls. To have a fair benchmark, the best would be to have a C part only implementing opendir/readir and FirstFindFile/FindFileXXX (I'm not sure that ctypes is as fast as C code written with the Python C API), and a Python part which implements the nice Python API. If the speedup is 10% or lower, I would prefer to not add so much C code and take the compromise of a thin C wrapper and implement scandir in Python. If we implement os.scandir() in Python, should we still try to share code with os.listdir()? I see that importlib uses os.listdir(), so we need a listdir() function implemented in C at least for importlib. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22524 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16177] Typing left parenthesis in IDLE causes intermittent Cocoa Tk crash on OS X
Tom Goddard added the comment: I've seen this crash about 50 times in the UCSF Chimera molecular visualization package, same traceback, and it is caused when a tooltip is raised, but not from IDLE. The key observation is that it only happens on dual display systems where the second display is positioned partly or entirely above or to the left of the primary display. An attempt to raise a tooltip on that second display causes a crash. This seems almost certain to be a Mac Tk bug. At first I thought it was caused by the x,y screen position of the tool tip being negative. But when the second screen is arranged above the primary screen (in Mac display system preferences) the y position is which increases from bottom to top is something like 2000, not negative. Currently my hunch is that the tooltip popup window was created for the primary display, and trying to position it on the secondary display is for some reason an error. I don't know enough about the native Mac NSWindow to say anything definitive. Hope this helps you to at least consistently reproduce the crash. -- nosy: +goddard ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16177 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16177] Typing left parenthesis in IDLE causes intermittent Cocoa Tk crash on OS X
Tom Goddard added the comment: More testing shows that this Mac Tk crash with dual displays only happens when the second display is partly or entirely above the primary display in the Mac display system preferences. An attempt to show the tooltip on the second display above the top of the primary display a crash happens. Contrary to my previous comment it does not appear to depend on whether the secondary display is to the right or to the left of the primary display. Possibly the key factor is that the tooltip is being displayed above Mac top of (primary) screen menu bar. It is possible that that is an Apple bug, rather than a Mac Tk bug. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16177 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16177] Typing left parenthesis in IDLE causes intermittent Cocoa Tk crash on OS X
Ned Deily added the comment: Tom, thanks for the detailed analysis. It seems pretty clear that this is not a Python problem and there's really nothing we can do about it. It would be great if you would be willing to open an issue on the Tcl/Tk project's issue tracker so that they are aware of it and perhaps can investigate it now that there might be a way to reliably reproduce the crash. I'm going to close this issue under the assumption it is a Tk problem. If it should prove otherwise, feel free to re-open. http://core.tcl.tk/tcl/reportlist -- resolution: - third party stage: test needed - resolved status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16177 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
