On 23/04/19 10:08 PM, Steven D'Aprano wrote:
On Tue, Apr 23, 2019 at 08:27:15PM +0530, Arup Rakshit wrote:
You probably want:
def __init__(self, list=None):
if list is None:
list = []
self.list = list
That is really a new thing to me. I didn't know. Why
On Tue, Apr 23, 2019 at 08:27:15PM +0530, Arup Rakshit wrote:
> >You probably want:
> >
> > def __init__(self, list=None):
> > if list is None:
> > list = []
> > self.list = list
>
> That is really a new thing to me. I didn't know. Why list=None in the
> param
On 4/23/19 8:57 AM, Arup Rakshit wrote:
> On 23/04/19 3:40 PM, Steven D'Aprano wrote:
>> Watch out here, you have a mutable default value, that probably doesn't
>> work the way you expect. The default value is created ONCE, and then
>> shared, so if you do this:
>>
>> a = MyCustomList() # Use the
On 23/04/19 3:40 PM, Steven D'Aprano wrote:
Watch out here, you have a mutable default value, that probably doesn't
work the way you expect. The default value is created ONCE, and then
shared, so if you do this:
a = MyCustomList() # Use the default list.
b = MyCustomList() # Shares the same de
On Tue, Apr 23, 2019 at 11:46:58AM +0530, Arup Rakshit wrote:
> Hi,
>
> I wrote below 2 classes to explore how __getitem__(self,k) works in
> conjuection with list subscriptions. Both code works. Now my questions
> which way the community encourages more in Python: if isinstance(key,
> slice):
On 23/04/2019 07:16, Arup Rakshit wrote:
> which way the community encourages more in Python: if isinstance(key,
> slice): or if type(key) == slice: ?
I think isinstance is usually preferred although I confess
that I usually forget and use type()... But isinstance covers
you for subclasses too.
On 22/04/19 3:35 PM, Alan Gauld via Tutor wrote:
On 22/04/2019 10:18, Arup Rakshit wrote:
Consider the below in simple class:
class RandomKlass:
def __init__(self, x):
self.x = x
def __del__(self):
print("Deleted…")
Now when I delete the object created from R
On 22/04/2019 10:18, Arup Rakshit wrote:
> Consider the below in simple class:
>
> class RandomKlass:
> def __init__(self, x):
> self.x = x
>
> def __del__(self):
> print("Deleted…")
>
> Now when I delete the object created from RandomKlass using `del` operator I
> s
On 13 Mar 2019 18:14, Alan Gauld via Tutor wrote:
On 11/03/2019 16:10, Diana Katz wrote:
> What is the best way to ..program using python - that could recognize
> a 3D object and then rank drawings of the object as to which are more
> accurate.
===>> check this out:
https://pytorch.org/tutor
I'll outline what you need
those types of recognition are done by machine learning, just some maths
using computation.
You normally give your program some images to train. Instead of letting the
program to figure out by itself, you give it some realistic drawings, the
best of the bunch and a pic
On 11/03/2019 16:10, Diana Katz wrote:
> What is the best way to ..program using python - that could recognize
> a 3D object and then rank drawings of the object as to which are more
> accurate.
I notice nobody has responded so I thought I'd let you
know your mail was received.
Unfortunately w
On 21/08/18 12:16, Jacob Braig wrote:
> I am just starting out coding and decided on python.
It looks like you are using Python v2 (maybe v2.7?) but
the latest version is 3.7 and for beginners we normally
recommend adopting v3. It doesn't change anything much
in this case but it saves you relearn
On Tue, Aug 21, 2018 at 05:16:35AM -0600, Jacob Braig wrote:
> I am having issues with " ammopleft = ammopistol - ammopused " any idea
> where I have gone wrong?
What sort of issues? Should we try to guess, or would you like to tell
us?
I'm reminded of a joke...
A man goes to the doctor.
Do
Op 21-08-18 om 13:16 schreef Jacob Braig:
I am just starting out coding and decided on python. I am confused with
something I go shooting a lot so i wanted to make some stupid easy
calculator for ammo and slowly build the program up when I understand
python better but the code I have now keeps po
Jeremy Ogorzalek wrote:
> Not sure this is how this is done, but here goes.
>
> When I try to run the code in the SGP4 module, I get the following error,
> and it originates in the io.py script:
>
>
> File "C:\ProgramData\Anaconda3\lib\site-packages\sgp4\io.py", line 131,
> in twoline2rv
>
On 04/06/18 16:57, Jeremy Ogorzalek wrote:
> Not sure this is how this is done, but here goes.
>
> When I try to run the code in the SGP4 module, I get the following error,
> and it originates in the io.py script:
I have no idea what you are talking about and do not know what the SGP4
or io.py fi
On 12/05/18 06:40, peter wrote:
> range does not work the same for 2.7 and my 3.6.5. Seems they have
> changed the nature of range. It is a built in listed along with lists
> and tuples
You are correct in that it has changed slightly and now returns
a range object. but you can convert it to a li
range does not work the same for 2.7 and my 3.6.5. Seems they have
changed the nature of range. It is a built in listed along with lists
and tuples
list(range(10))
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> tuple(range(10))
(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
seems they have changed range for python3.6.
> On May 9, 2018, at 07:14, kevin hulshof wrote:
>
> Hello,
>
> Is there a function that allows you to grab the numbers between two numbers?
>
> Eg. If you input the numbers 1 and 4
> To make a list like this [1,2,3,4]
One option is range
range(1,5)
>>> range(1,5)
[1, 2, 3, 4]
https://docs
On 09/05/18 13:14, kevin hulshof wrote:
Hello,
Is there a function that allows you to grab the numbers between two numbers?
Eg. If you input the numbers 1 and 4
To make a list like this [1,2,3,4]
Thank you for you’re time
Seems like 'range' should fit your needs
https://docs.python.org/3/
On Thu, Jan 18, 2018 at 05:14:43PM +, Albert-Jan Roskam wrote:
> Is a metaclass the best/preferred/only way of doing this? Or is a
> class decorator an alternative route?
I haven't thought deeply about this, but I suspect a class decorator
should do the job too.
The general advice is to us
On Thu, Jan 18, 2018 at 05:31:24PM +, Albert-Jan Roskam wrote:
> > Don't make the mistake of doing this:
> >
> > from collections import namedtuple
> > a = namedtuple('Bag', 'yes no dunno')(yes=1, no=0, dunno=42)
> > b = namedtuple('Bag', 'yes no dunno')(yes='okay', no='no way', dunno='not a
On Jan 10, 2018 19:32, Peter Otten <__pete...@web.de> wrote:
>
> Albert-Jan Roskam wrote:
>
> > Why does following the line (in #3)
>
> > # 3-
> > class Meta(type):
> > def __new__(cls, name, bases, attrs):
> > for attr, obj in attrs.item
On Jan 10, 2018 18:57, Steven D'Aprano wrote:
>
> On Wed, Jan 10, 2018 at 04:08:04PM +, Albert-Jan Roskam wrote:
>
> > In another thread on this list I was reminded of
> > types.SimpleNamespace. This is nice, but I wanted to create a bag
> > class with constants that are read-only.
>
> If you
Steven D'Aprano wrote:
> On Wed, Jan 10, 2018 at 07:29:58PM +0100, Peter Otten wrote:
>
> [...]
>> elif not isinstance(obj, property):
>> attrs[attr] = property(lambda self, obj=obj: obj)
>
>> PS: If you don't remember why the obj=obj is necessary:
>> Python uses late
On Wed, Jan 10, 2018 at 07:29:58PM +0100, Peter Otten wrote:
[...]
> elif not isinstance(obj, property):
> attrs[attr] = property(lambda self, obj=obj: obj)
> PS: If you don't remember why the obj=obj is necessary:
> Python uses late binding; without that trick all lam
Albert-Jan Roskam wrote:
> Why does following the line (in #3)
> # 3-
> class Meta(type):
> def __new__(cls, name, bases, attrs):
> for attr, obj in attrs.items():
> if attr.startswith('_'):
> continue
>
On Wed, Jan 10, 2018 at 10:08 AM, Albert-Jan Roskam
wrote:
> Hi,
>
>
> In another thread on this list I was reminded of types.SimpleNamespace. This
> is nice, but I wanted to create a bag class with constants that are
> read-only. My main question is about example #3 below (example #2 just
> il
On Wed, Jan 10, 2018 at 04:08:04PM +, Albert-Jan Roskam wrote:
> In another thread on this list I was reminded of
> types.SimpleNamespace. This is nice, but I wanted to create a bag
> class with constants that are read-only.
If you expect to specify the names of the constants ahead of time,
Hello Khabbab Zakaria,
On Sun, Dec 10, 2017 at 11:18:16AM +0530, Khabbab Zakaria wrote:
> I am working on a program where I found the line:
> x,y,z = np.loadtext('abcabc.txt', unpack= True, skiprows =1)
> What does the x, y, z thing mean?
"x, y, z = ..." is iterable unpacking. The right hand side
On 10/12/17 05:48, Khabbab Zakaria wrote:
> I am working on a program where I found the line:
> x,y,z = np.loadtext('abcabc.txt', unpack= True, skiprows =1)
> What does the x, y, z thing mean?
> What does the unpack= True mean?
They are related. unpacking is a feature of Python whereby a collect
Айнур Зулькарнаев wrote:
> Hello all!
>
>
> There is a class Calendar in calendar.py in standard libriary.
>
>
> class Calendar(object):
> """
> Base calendar class. This class doesn't do any formatting. It
> simply provides data to subclasses.
> """
>
>
On Mon, Sep 11, 2017 at 10:58:51AM +, Айнур Зулькарнаев wrote:
> class Calendar(object):
> def __init__(self, firstweekday=0):
> self.firstweekday = firstweekday # 0 = Monday, 6 = Sunday
>
> def getfirstweekday(self):
> return self._firstweekday % 7
>
> def setfir
On 11/09/17 11:58, Айнур Зулькарнаев wrote:
> So, the question is why not explicitly raise ValueError if
> user enters the firstweekday parameter bigger that 6
Its a valid question but you probably need to find the original PEP
document to find the answer and that module has been around for
a *
On 12/04/17 15:32, Daniel Berger wrote:
>For me it is not clear what is going wrong and I would be happy to get
>some help to solve the problem.
This list is for the core language and library, so while we
can help with installing third party packages that doesn't
mean anyone here will kno
Daniel Berger
Gesendet: Dienstag, 11. April 2017 um 21:04 Uhr
Von: "Marc Tompkins"
An: "Daniel Berger"
Cc: "tutor@python.org"
Betreff: Re: [Tutor] Question to Phyton and XBee
On Tue, Apr 11, 2017 at 9:12 AM, Daniel Berger <[1]berg...@gmx.de&g
On Tue, Apr 11, 2017 at 9:12 AM, Daniel Berger wrote:
>Hello,
>
>I have installed the modules to control xbee with Python
>https://pypi.python.org/pypi/XBee). Afterwards I have set the path
>variable on C:\Python27\python-xbee-master and also the subdirectories.
> To
>check, i
On 04/05/2017 01:07 PM, Fazal Khan wrote:
> Hello,
>
> Heres another newbie python question: How can I loop through some data and
> assign different variables with each loop
>
> So this is my original code:
>
> def BeamInfo(x):
> for Bnum in x:
> if plan1.IonBeamSequence[Bnum].ScanMode
On Wed, Apr 05, 2017 at 12:07:05PM -0700, Fazal Khan wrote:
> Hello,
>
> Heres another newbie python question: How can I loop through some data and
> assign different variables with each loop
You don't. That's a bad idea.
Instead, you use a sequence (a tuple, or a list), and use an index:
TxTab
On 05/04/17 20:07, Fazal Khan wrote:
> assign different variables with each loop
You can't, but you can fake it...
> def BeamInfo(x):
> for Bnum in x:
> if plan1.IonBeamSequence[Bnum].ScanMode == 'MODULATED':
> TxTableAngle =
> plan1.IonBeamSequence[Bnum].IonControlPointSeq
On 04/03/17 01:37, Tasha Burman wrote:
> I am having difficulty with a power function;
> what is another way I can do 4**9 without using **?
You can use the pow() function.
answer = pow(4,9)
However, I'm not sure that really answers your question?
Do you mean that you want to write your own pow
On 09/11/16 22:30, Bryon Adams wrote:
> Hello,
> Working on a simple function to get an IP address and make it look
> pretty for the PyNet course. I'm wondering if there's way to evenly
> space text with the string.format() method similar to how I'm doing it
> with the % operator.
Yes, re
Bryon Adams wrote:
> Hello,
> Working on a simple function to get an IP address and make it look
> pretty for the PyNet course. I'm wondering if there's way to evenly
> space text with the string.format() method similar to how I'm doing it
> with the % operator. The last two prints keep every
On 15 April 2016 at 10:48, Albert-Jan Roskam wrote:
> What I like about both namedtuple and AttrDict is attribute lookup: that
> makes code so, so, s much easier to read. This seems to be a nice
> generalization of your code:
>
> class Point(object):
>
> def __init__(self, **kwargs):
>
> From: oscar.j.benja...@gmail.com
> Date: Thu, 14 Apr 2016 21:34:39 +0100
> Subject: Re: [Tutor] question about __copy__ and __deepcopy__
> To: sjeik_ap...@hotmail.com
> CC: tutor@python.org
>
> On 14 April 2016 at 20:38, Albert-Jan Roskam wrote:
> > Hi,
> >
On 15 April 2016 at 09:55, Albert-Jan Roskam wrote:
>
> Heh, it's my fancy __str__ method that confused me. This is what I get when I
> run my code without __copy__ and __deepcopy__
> runfile('/home/albertjan/Downloads/attrdict_tutor.py',
> wdir='/home/albertjan/Downloads')
> {'x': 1, 'y': 2, 'z
> Date: Fri, 15 Apr 2016 16:30:16 +1000
> From: st...@pearwood.info
> To: tutor@python.org
> Subject: Re: [Tutor] question about __copy__ and __deepcopy__
>
> On Thu, Apr 14, 2016 at 07:38:31PM +, Albert-Jan Roskam wrote:
> > Hi,
> >
> > Lately I hav
On Thu, Apr 14, 2016 at 07:38:31PM +, Albert-Jan Roskam wrote:
> Hi,
>
> Lately I have been using the "mutable namedtuple" shown below a lot.
> I found it somewhere on StackOverflow or ActiveState or something. In
> its original form, it only had an __init__ method. I noticed that
> copyin
On 14 April 2016 at 20:38, Albert-Jan Roskam wrote:
> Hi,
>
> Lately I have been using the "mutable namedtuple" shown below a lot. I found
> it somewhere on StackOverflow or ActiveState or something.
> In its original form, it only had an __init__ method.
I don't know about your copy/deepcopy s
When you say "Window" are you referring to the Installer or Idle?
Which Operating System are you using and what version of Python did
you download? Did you run the installer that you downloaded?
___
Tutor maillist - Tutor@python.org
To unsubscribe or ch
On 17/01/16 18:27, Ricardo Martínez wrote:
> Hi folks, first thanks to Peter and Alan for the comments about the
> Interpreter, i really appreciate that.
I don't remember giving any comments about the interpreter,
but if I did you're welcome! :-)
> The question that i have in mind is about grid l
> From: eryk...@gmail.com
> Date: Thu, 14 Jan 2016 04:42:57 -0600
> Subject: Re: [Tutor] Question about the memory manager
> To: tutor@python.org
> CC: sjeik_ap...@hotmail.com
>
> On Thu, Jan 14, 2016 at 3:03 AM, Albert-Jan Roskam
> wrote:
> >
> > These two p
On Thu, Jan 14, 2016 at 3:03 AM, Albert-Jan Roskam
wrote:
>
> These two pages are quite nice. The author says the memory used by small
> objects is
> never returned to the OS, which may be problematic for long running processes.
The article by Evan Jones discusses a patch to enable releasing unu
D
> From: sjeik_ap...@hotmail.com
> To: tim.pet...@gmail.com
> Date: Wed, 13 Jan 2016 08:11:11 +
> Subject: Re: [Tutor] Question about the memory manager
> CC: tutor@python.org
>
> > From: tim.pet...@gmail.com
> > Date: Sun, 10 Jan 2016 10:54:10 -0600
> >
On Wed, Jan 13, 2016 at 2:01 AM, Albert-Jan Roskam
wrote:
> I sometimes check the Task Manager to see how much RAM is in use. Is there a
> Python way to do something similar?
Use the psutil module to solve this problem across platforms. For
Windows only, you can use ctypes to call GetProcessMemo
> From: tim.pet...@gmail.com
> Date: Sun, 10 Jan 2016 10:54:10 -0600
> Subject: Re: [Tutor] Question about the memory manager
> To: sjeik_ap...@hotmail.com
> CC: tutor@python.org
>
> [Albert-Jan Roskam ]
> > I just found a neat trick to free up an emergency stash of m
> To: tutor@python.org
> From: __pete...@web.de
> Date: Sun, 10 Jan 2016 18:29:06 +0100
> Subject: Re: [Tutor] Question about the memory manager
>
> Albert-Jan Roskam wrote:
>
> > Hi,
> >
> > I just found a neat trick to free up an emergency stash of
On 11 January 2016 at 15:40, Peter Otten <__pete...@web.de> wrote:
>> I can't even work out how you trigger a MemoryError on Linux (apart
>> from just raising one). I've tried a few ways to make the system run
>> out of memory and it just borks the system rather than raise any error
>> - I can only
Oscar Benjamin wrote:
> On 11 January 2016 at 12:15, Alan Gauld wrote:
>>
>> But I think that it definitely is heavily OS dependent.
>> It should work in most *nix environments the first time
>> you call the function. But on second call I'd expect
>> all bets to be off. And in most real-time OS's
On 11 January 2016 at 12:15, Alan Gauld wrote:
>
> But I think that it definitely is heavily OS dependent.
> It should work in most *nix environments the first time
> you call the function. But on second call I'd expect
> all bets to be off. And in most real-time OS's memory
> goes right back to t
On 10/01/16 16:16, Steven D'Aprano wrote:
>> rainydayfund = [[] for x in xrange(16*1024)] # or however much you need
>> def handle_exception(e):
>> global rainydayfund
>> del rainydayfund
>> ... etc, etc ...
>
> I was going to write a scornful email about how useless this would be.
Me too.
> st
If you read the comment that goes with the code snippet pasted in the
original email it makes far more sense as the author is talking
specifically about out of memory errors...
"You already got excellent answers, I just wanted to add one more tip
that's served me well over the years in a variety
Albert-Jan Roskam wrote:
> Hi,
>
> I just found a neat trick to free up an emergency stash of memory in a
> funtion that overrides sys.excepthook. The rationale is that all
> exceptions, including MemoryErrors will be logged. The code is below. My
> question: is that memory *guaranteed* to be fre
[Albert-Jan Roskam ]
> I just found a neat trick to free up an emergency stash of memory in
> a funtion that overrides sys.excepthook. The rationale is that all
> exceptions, including MemoryErrors will be logged.
> The code is below. My question: is that memory *guaranteed* to be
> freed right aft
On Sun, Jan 10, 2016 at 11:53:22AM +, Albert-Jan Roskam wrote:
> Hi,
>
> I just found a neat trick to free up an emergency stash of memory in a
> funtion that overrides sys.excepthook.
> rainydayfund = [[] for x in xrange(16*1024)] # or however much you need
> def handle_exception(e):
> glob
On 16/11/15 15:30, CUONG LY wrote:
Hello,
I’m learning Python.
Hello, welcome.
I want to know what does the following line represent
if __name__ == ‘__main__’:
The short answer is that it tests whether the file is being
imported as a module or executed as a program.
If its being imported a
On Thu, Nov 12, 2015 at 12:11:19PM +, Albert-Jan Roskam wrote:
> > __getattr__() is only invoked as a fallback when the normal attribute
> > lookup
> > fails:
>
>
> Aha.. and "normal attributes" live in self.__dict__?
Not necessarily.
Attributes can live either in "slots" or the instance
> To: tutor@python.org
> From: __pete...@web.de
> Date: Fri, 13 Nov 2015 09:26:55 +0100
> Subject: Re: [Tutor] question about descriptors
>
> Albert-Jan Roskam wrote:
>
> >> __getattr__() is only invoked as a fallback when the normal attribute
> >> lookup
Albert-Jan Roskam wrote:
>> __getattr__() is only invoked as a fallback when the normal attribute
>> lookup fails:
>
>
> Aha.. and "normal attributes" live in self.__dict__?
I meant "normal (attribute lookup)" rather than "(normal attribute) lookup".
__getattr__() works the same (I think) when
> To: tutor@python.org
> From: __pete...@web.de
> Date: Wed, 11 Nov 2015 20:06:20 +0100
> Subject: Re: [Tutor] question about descriptors
>
> Albert-Jan Roskam wrote:
>
> >> From: st...@pearwood.info
>
> >> Fortunately, Python has an mechanism for s
Albert-Jan Roskam wrote:
>> From: st...@pearwood.info
>> Fortunately, Python has an mechanism for solving this problem:
>> the `__getattr__` method and friends.
>>
>>
>> class ColumnView(object):
>> _data = {'a': [1, 2, 3, 4, 5, 6],
>> 'b': [1, 2, 4, 8, 16, 32],
>>
Albert-Jan Roskam wrote:
>> class ReadColumn(object):
>> def __init__(self, index):
>> self._index = index
>> def __get__(self, obj, type=None):
>> return obj._row[self._index]
>> def __set__(self, obj, value):
>> raise AttributeError("oops")
>
> This appears t
> Date: Sun, 8 Nov 2015 01:24:58 +1100
> From: st...@pearwood.info
> To: tutor@python.org
> Subject: Re: [Tutor] question about descriptors
>
> On Sat, Nov 07, 2015 at 12:53:11PM +, Albert-Jan Roskam wrote:
>
> [...]
> > Ok, now to my question. I want to
> I think the basic misunderstandings are that
>
> (1) the __get__() method has to be implemented by the descriptor class
> (2) the descriptor instances should be attributes of the class that is
> supposed to invoke __get__(). E. g.:
>
> class C(object):
>x = decriptor()
>
> c = C()
>
On Sat, Nov 07, 2015 at 12:53:11PM +, Albert-Jan Roskam wrote:
[...]
> Ok, now to my question. I want to create a class with read-only
> attribute access to the columns of a .csv file. E.g. when a file has a
> column named 'a', that column should be returned as list by using
> instance.a. A
Albert-Jan Roskam wrote:
>
>
> p, li { white-space: pre-wrap; }
>
> Hi,
> First, before I forget, emails from hotmail/yahoo etc appear to end up in
> the spam folder these days, so apologies in advance if I do not appear to
> follow up to your replies. Ok, now to my question. I want to create a
On 07/11/15 12:53, Albert-Jan Roskam wrote:
Ok, now to my question.
> I want to create a class with read-only attribute access
to the columns of a .csv file.
Can you clarify what you mean by that?
The csvreader is by definition read only.
So is it the in-memory model that you want read-only?
On 10/09/15 18:00, Sarika Shrivastava wrote:
I wanted to ready data from excel file which in german Language and
onovert to English language ??
Those are two completely separate questions.
To read Excel there are several options. The simplest
is if you can convert the file to csv and use the
In a message of Mon, 03 Aug 2015 10:38:40 +0100, matej taferner writes:
>Or maybe should I go with the tkinter?
You have to decide whether what you want is a Stand Alone GUI Application
(in which case tkinter could be a fine idea) or a web app. It sounds
to me as if you want your customers to nav
On 04/08/15 05:21, Lulwa Bin Shuker wrote:
I'm currently learning Python through an online course but after learning
the basics of the language I need to apply what I learned on a real project
and start practicing it. How can I do that ?
Do you have a project in mind but are not sure how to st
On 08/03/2015 02:38 AM, matej taferner wrote:
Or maybe should I go with the tkinter?
As a final product of this decision tree "app" I need a clickable buttons
ready to be embedded into the website which will guide customer(s) to
desired answer(s).
The two aren't exactly compatible. Tkinter
Or maybe should I go with the tkinter?
2015-08-03 10:36 GMT+01:00 matej taferner :
> thanks for the reply. I'll definitely check the book.
>
> The back end solution of the problem is more or less clear to me. What I
> find difficult is the grasp the idea of o called front end dev. or better
> to
thanks for the reply. I'll definitely check the book.
The back end solution of the problem is more or less clear to me. What I
find difficult is the grasp the idea of o called front end dev. or better
to say what should I use to make buttons should I dig into django framework
or something else?
In a message of Mon, 03 Aug 2015 08:58:43 +0100, matej taferner writes:
>hi guys,
>
>I am wondering if there is a python solution for the problem I am currently
>dealing with.
>I need to build a decision tree based questionnaire which helps users to
>find the right answer.
>
>As a final product of
Serge Christian Ibala wrote:
> Or what is the recommendation of Python for image processing?
Basic setup everyone should have:
Python
NumPy
SciPy (e.g. scipy.ndimage)
Cython
C and C++ compiler
matplotlib
scikit-image
scikit-learn
pillow
Also consider:
mahotas
tifffile (by Christoph Gohlke)
Ope
On Thu, May 28, 2015 at 1:05 PM, Terry Reedy wrote:
> On 5/28/2015 6:34 AM, Serge Christian Ibala wrote:
>
>
> I want to use the following package
>>
>> “numpy, matplotib, mahotas, ipython OpenCV and SciPy"
>>
>
> opencv seems to be the only one not available for 3.x.
>
>
OpenCV 3 (which is in
On 28 May 2015 at 11:34, Serge Christian Ibala
wrote:
> Hello All,
>
> I want to know which version of Python is compatible (or can be associated
> with which version of which "tools or package" for image processing)
>
> I am working under Window and it is so complicated to find out which version
On 27/11/14 16:07, boB Stepp wrote:
Alan's reference to indentation level had me trying to prove the
opposite--unsuccessfully.
Yeah, I probably over-simplified there in response to your assumption
that it was the order that mattered. It's really whether they are
inside a function or class -
On 11/27/2014 11:07 AM, boB Stepp wrote:
x = "outer"
def tricky_func2():
y = x
print(x)
tricky_func2()
outer
So why does not print(x) see the global x and instead looks for the
local x?
The function is compiled during the import (or initial load if it's a
On Thu, Nov 27, 2014 at 9:33 AM, Steven D'Aprano wrote:
> On Thu, Nov 27, 2014 at 09:00:48AM -0600, boB Stepp wrote:
[...]
> But there is a subtlety that you may not expect:
>
> py> class Tricky:
> ... print(x)
> ... x = "inner"
> ... print(x)
> ...
> outer
> inner
Actually, this is
On Thu, Nov 27, 2014 at 09:13:35AM -0600, boB Stepp wrote:
> On Thu, Nov 27, 2014 at 4:56 AM, Steven D'Aprano wrote:
> > On Wed, Nov 26, 2014 at 10:18:55PM -0600, boB Stepp wrote:
> >
> >> So any variables lower in the program are accessible to those above it?
> >
> > No, that can't be the explana
On Thu, Nov 27, 2014 at 09:00:48AM -0600, boB Stepp wrote:
> Level of indentation is the key? Can you give me an example, not
> involving functions, where a variable is defined at an "inner" level
> of indentation, but is not accessible at the outermost level of
> indentation?
Classes and functi
On Thu, Nov 27, 2014 at 4:56 AM, Steven D'Aprano wrote:
> On Wed, Nov 26, 2014 at 10:18:55PM -0600, boB Stepp wrote:
>
>> So any variables lower in the program are accessible to those above it?
>
> No, that can't be the explanation. Think of this:
>
> b = a + 1
> a = 2
>
> That will fail because w
On Thu, Nov 27, 2014 at 4:51 AM, Alan Gauld wrote:
> On 27/11/14 04:18, boB Stepp wrote:
[...]
>> So any variables lower in the program are accessible to those above it?
>
>
> No.
> Its not whether they are defined above or below each other its the level of
> indentation. Both f and g are define
On Wed, Nov 26, 2014 at 10:18:55PM -0600, boB Stepp wrote:
> So any variables lower in the program are accessible to those above it?
No, that can't be the explanation. Think of this:
b = a + 1
a = 2
That will fail because when the "b = a + 1" line is executed, a doesn't
exist yet so there is n
On 27/11/14 04:18, boB Stepp wrote:
Note that this principle is critical to Python, otherwise functions
couldn't call each other, or even built-ins! If you have two functions:
def f(): return g()
def g(): return "Hello!"
"g" is a global "variable" and f() can see it, otherwise it couldn't
cal
On Wed, Nov 26, 2014 at 6:20 PM, Steven D'Aprano wrote:
> On Wed, Nov 26, 2014 at 05:23:40PM -0600, boB Stepp wrote:
[...]
>> First question: How can the printLabel() function see the list
>> variable, l, defined outside of this function? I thought that
>> functions only had access to variables lo
On Wed, Nov 26, 2014 at 05:23:40PM -0600, boB Stepp wrote:
> Python 2.4.4
> Solaris 10
>
> #!/usr/bin/env python
>
> from Tkinter import *
>
> def printLabel():
> print "Button number ", var.get(), " was pressed."
> print "You selected this option:", l[var.get() - 1][0]
>
> root = Tk()
On 26/11/14 23:23, boB Stepp wrote:
def printLabel():
print "Button number ", var.get(), " was pressed."
print "You selected this option:", l[var.get() - 1][0]
...
buttonNumber = []
l = [("Brain_Partial", 1), ("Brain_Whole", 2),
("Head & Neck", 3), ("Chest",
On Wed, Oct 29, 2014 at 05:08:28PM +0100, jarod...@libero.it wrote:
> Dear All,
>
> I have a long matrix where I have the samples (1to n) and then I have (1to j
> )elements.
> I would like to count how many times each j element are present on each
> samples.
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