Re: [Tutor] Strange list behaviour in classes

[ALAN GAULD]

One point:

class Statistics:
def __init__(self, *value_list):
>self.value = value_list
>self.square_list= []
>def mean(self, *value_list):
>try :
>ave = sum(self.value) / len(self.value)
>except ZeroDivisionError:
>ave = 0
>return ave
You don't use value_list here you use self.value. So you don't need value_list

def median(self, *value_list):
>if len(self.value) <= 2:
>n = self.mean(self.value)
>elif len(self.value) % 2 == 1:
>m = (len(self.value) - 1)/2
>n = self.value[m+1]
>else:
>m = len(self.value) / 2
>m = int(m)
>n = (self.value[m-1] + self.value[m]) / 2
>return n
Same here...
 
def variance(self, *value_list):
>average = self.mean(*self.value)
>for n in range(len(self.value)):
>square = (self.value[n] - average)**2
>self.square_list.append(square)
>try:
>var = sum(self.square_list) / len(self.square_list)
>except ZeroDivisionError:
>var = 0
>return var
And here...

def stdev(self, *value_list):
>var = self.variance(*self.value)
>sdev = var**(1/2)
>return sdev
And here... 
def zscore(self, x, *value_list):
>average = self.mean(self.value)
>sdev = self.stdev(self.value)
>try:
>z = (x - average) / sdev
>except ZeroDivisionError:
>z = 0
>return z
And here

a = [1,2,3,4,5,6,7,8,9,10]
>stats = Statistics(*a)
>So you need the *a here


mean = stats.mean(*a)
>median = stats.median(*a)
>var = stats.variance(*a)
>stdev = stats.stdev(*a)
>z = stats.zscore(5, *a)
>But you don't need to pass in *a in any of these calls.
Its already stored in the object.

Also instead of returning these values (or as well as)
you could have stored them as variables inside the 
object.


print(mean, median, var, stdev, z)
>
>In which case this would become

print(self.theMean,self.theMedian, etc...)

Just an alternative for consideration.

Alan G.___
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Re: [Tutor] Cannot open SQLite database

[Timo]

On 25-02-10 00:03, ALAN GAULD wrote:

Does the file actually exist where you say it does?

It doesn't need to exist, it will be created if it isn't found.

Of course I should have known that!
It points to the path/folder then...

It is on Windows XP, and in the logfile it says it uses the directory:
C:\Documents and Settings\user\Application Data\myapp

That directory should always be writeable for the user, no?


Not on my PC its Read Only

And I have administrator rights.
A normal user is even more likely to be limited.
And a Guest account definitely would be.
Hmm that's strange. I thought the application data folder is the correct 
folder on Windows systems to put your configuration files. And until 
now, it worked perfectly for every user.


What should be the correct folder then?

Cheers,
Timo




HTH,

Alan G.



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Re: [Tutor] Cannot open SQLite database

[ALAN GAULD]

> > It is on Windows XP, and in the logfile it says it uses the directory:
> > C:\Documents and Settings\user\Application Data\myapp
> >
> > That directory should always be writeable for the user, no?
> >
> > Not on my PC its Read Only
> >
> > And I have administrator rights.
> > A normal user is even more likely to be limited.
> > And a Guest account definitely would be.
> Hmm that's strange. I thought the application data folder is the correct 
> folder on Windows systems to put your configuration files. And until 
> now, it worked perfectly for every user.
> 
> What should be the correct folder then?

I don't know! To be honest I was surprised by the result too.
Personally I tend to either use the application folder or the registry.
But the app folder doesn't work for user specific settings unless 
you have a separate file based on user ID.

Its very odd.

In fact Windows explorer appears to be lying. I just tried creating 
a file using Python and it worked perfectly. But Explorer definitely 
claims its R/Only! I also tried the ATTRIB command from DOS 
and it does not show it as Read only. 

Cygwin shows it as readonly for world access but open for user 
and group. The security tab in exporer shows it read/write for
admins and me. (It doesn't show a world setting)

So I think that was a red herring, sorry.
It also looks like the Read Only check box in the main Explorer 
property dialog tab doesn't mean what it says...

Alan G.

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Re: [Tutor] Cannot open SQLite database

[Timo]

2010/2/25 ALAN GAULD 

>
> > What should be the correct folder then?
>
> I don't know! To be honest I was surprised by the result too.
> Personally I tend to either use the application folder or the registry.
> But the app folder doesn't work for user specific settings unless
> you have a separate file based on user ID.
>
> Its very odd.
>
> In fact Windows explorer appears to be lying. I just tried creating
> a file using Python and it worked perfectly. But Explorer definitely
> claims its R/Only! I also tried the ATTRIB command from DOS
> and it does not show it as Read only.
>
> Cygwin shows it as readonly for world access but open for user
> and group. The security tab in exporer shows it read/write for
> admins and me. (It doesn't show a world setting)
>
> So I think that was a red herring, sorry.
> It also looks like the Read Only check box in the main Explorer
> property dialog tab doesn't mean what it says...
>
> Alan G.
>

I just thought of something, and it can't be that the folder isn't
writeable. Because I asked the user for the logfile that my program
produces, and it is located in the same folder as where the database should
be.
So if the folder wasn't writeable, the creation of the logfile would have
caused an error too.

So I'm a bit stuck about this one.

Timo
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Re: [Tutor] Omitting lines matching a list of strings from a file

[Alan Gauld]

 wrote 

I am trying to output a list of addresses that do not match a list of  
State abbreviations. What I have so far is:


def main():
infile = open("list.txt", "r")
for line in infile:
state = line[146:148]
omit_states = ['KS', 'KY', 'MA', 'ND', 'NE', 'NJ', 'PR',  
'RI', 'SD', 'VI', 'VT', 'WI']

for n in omit_states:
if state != n:
print line


This prints it for every entry in omit_states. 
You probably want to add a break command after the print



But I would do this with a list comprehension or generator 
expression (depending on your Python version):



lines = [line for line in infile if line[146:148] not in omit_states]
print '\n'.join(lines)

HTH,


--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/

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Re: [Tutor] Strange list behaviour in classes

[Dave Angel]

James Reynolds wrote:

Thank you! I think I have working in the right direction. I have one more
question related to this module.

I had to move everything to a single module, but what I would like to do is
have this class in a file by itself so I can call this from other modules.
when it was in separate modules it ran with all 0's in the output.

Here is the code in one module:

#import Statistics

class Statistics:
def __init__(self, *value_list):
self.value = value_list
self.square_list= []
 def mean(self, *value_list):
try :
ave = sum(self.value) / len(self.value)
except ZeroDivisionError:
ave = 0
return ave

def median(self, *value_list):
if len(self.value) <= 2:
n = self.mean(self.value)
elif len(self.value) % 2 == 1:
m = (len(self.value) - 1)/2
n = self.value[m+1]
else:
m = len(self.value) / 2
m = int(m)
n = (self.value[m-1] + self.value[m]) / 2
return n
 def variance(self, *value_list):
average = self.mean(*self.value)
for n in range(len(self.value)):
square = (self.value[n] - average)**2
self.square_list.append(square)
try:
var = sum(self.square_list) / len(self.square_list)
except ZeroDivisionError:
var = 0
return var

def stdev(self, *value_list):
var = self.variance(*self.value)
sdev = var**(1/2)
return sdev
 def zscore(self, x, *value_list):
average = self.mean(self.value)
sdev = self.stdev(self.value)
try:
z = (x - average) / sdev
except ZeroDivisionError:
z = 0
return z



a = [1,2,3,4,5,6,7,8,9,10]
stats = Statistics(*a)
mean = stats.mean(*a)
median = stats.median(*a)
var = stats.variance(*a)
stdev = stats.stdev(*a)
z = stats.zscore(5, *a)
print(mean, median, var, stdev, z)
print()



On Wed, Feb 24, 2010 at 7:33 PM, Alan Gauld wrote:

  

"James Reynolds"  wrote

 I understand, but if self.value is any number other then 0, then the "for"


will append to the square list, in which case square_list will always have
some len greater than 0 when "value" is greater than 0?

  

And if value does equal zero?

Actually I'm confused by value because you treat it as both an
integer and a collection in different places?


 Is this an occasion which is best suited for a try:, except statement? Or


should it, in general, but checked with "if's". Which is more expensive?

  

try/except is the Python way :-)


 def variance(self, *value_list):


  if self.value == 0:
   var = 0
  else:
average = self.mean(*self.value)
for n in range(len(self.value)):
 square = (self.value[n] - average)**2
 self.square_list.append(square)
   var = sum(self.square_list) / len(self.square_list)
   return var

  

--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/



The indentation in your code is lost when I look for it --  everything's 
butted up against the left margin except for a single space before def 
variance.  This makes it very hard to follow, so I've ignored the thread 
till now.  This may be caused by the mail digest logic, or it may 
because you're posting online, and don't tell it to leave the code 
portion unformatted.  But either way, you should find a way to leave the 
code indented as Python would see it.  If you're posting by mail, be 
sure and send it as text.


But a few things I notice in your code:   You keep using the * notation 
on your formal parameters.  That's what turns a list into a tuple.  And 
you pass those lists into methods  (like median()) which already have 
access to the data in the object, which is very confusing.  If the 
caller actually passes something different there, he's going to be 
misled, since the argument is ignored.


Also, in method variance() you append to the self.square_list.  So if it 
gets called more than once, the list will continue to grow.  Since 
square_list is only referenced within the one method, why not just 
define it there, and remove it as a instance attribute?


If I were you, I'd remove the asterisk from both the __init__() method 
parameter, and from the caller in top-level code.  You're building a 
list, and passing it.  Why mess with turning it into multiple arguments, 
and then back to a tuple?   Then I'd remove the spurious arguments to 
mean(), variance(), stdev() and zscore().  There are a few other things, 
but this should make it cleaner.


DaveA

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Re: [Tutor] Strange list behaviour in classes

[Walter Prins]

On 25 February 2010 11:22, Dave Angel  wrote:

> The indentation in your code is lost when I look for it --  everything's
> butted up against the left margin except for a single space before def
> variance.  This makes it very hard to follow, so I've ignored the thread
> till now.  This may be caused by the mail digest logic, or it may because
> you're posting online, and don't tell it to leave the code portion
> unformatted.


This is probably something your end, I read and post from within Google mail
(as well as from Thunderbird occassionally) and I have no trouble seeing the
indentation.  (I don't use the mail digest, I receive single emails/posts.)
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[Tutor] [Installing Spyder IDE]:Help

[vanam]

I have been trying to install spyder ide but of no avail.
Downloaded and installed spyder-1.03_py26.exe

I have downloaded pyqt4 for that purpose(Direct Installer)
pyqt-py2.6-gpl-4.7-1.exe
after installing the above softwares and then launching Spyder
it is showing initialising and gets disappears.

Is that something or dependency i have missed to install?



--
Raghavendra  Vanam

-- 
Raghavendra  Vanam
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Re: [Tutor] Omitting lines matching a list of strings from a file

[galaxywatcher]

But I would do this with a list comprehension or generator
expression (depending on your Python version):


lines = [line for line in infile if line[146:148] not in omit_states]
print '\n'.join(lines)


That's very helpful. Thanks. One formatting detail: there is a blank  
line after each line printed, how do I ged rid of the extra blank lines?

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Re: [Tutor] Omitting lines matching a list of strings from a file

[Christian Witts]

galaxywatc...@gmail.com wrote:

But I would do this with a list comprehension or generator
expression (depending on your Python version):


lines = [line for line in infile if line[146:148] not in omit_states]
print '\n'.join(lines)


That's very helpful. Thanks. One formatting detail: there is a blank 
line after each line printed, how do I ged rid of the extra blank lines?

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lines = [line.strip() for line in infile if line[146:148] not in 
omit_states]

print '\n'.join(lines)

or alternatively

lines = [line for line in infile if line[146:148] not in omit_states]
print ''.join(lines)

Just remember that doing a list comprehension like that on a large file 
will drastically reduce the speed of your application as well as 
introduce memory bloat.


--
Kind Regards,
Christian Witts


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Re: [Tutor] Strange list behaviour in classes

[Ken Oliver]

-Original Message- From: Walter Prins Sent: Feb 25, 2010 7:09 AM To: Dave Angel Cc: Alan Gauld , tutor@python.org Subject: Re: [Tutor] Strange list behaviour in classes 
On 25 February 2010 11:22, Dave Angel  wrote:



The indentation in your code is lost when I look for it --  everything's butted up against the left margin except for a single space before def variance.  This makes it very hard to follow, so I've ignored the thread till now.  This may be caused by the mail digest logic, or it may because you're posting online, and don't tell it to leave the code portion unformatted.  
This is probably something your end, I read and post from within Google mail (as well as from Thunderbird occassionally) and I have no trouble seeing the indentation.  (I don't use the mail digest, I receive single emails/posts.)===
I am also seeing the same unindented code.

 .
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Re: [Tutor] Cannot open SQLite database

[Michael M Mason]

ALAN GAULD wrote on 25 February 2010 at 08:50:-

> So I think that was a red herring, sorry.
> It also looks like the Read Only check box in the main
> Explorer property dialog tab doesn't mean what it says...

Doesn't the Read Only checkbox have a coloured square rather than
a tick?

AFAIK the coloured square is intended to mean "doesn't apply", and
you should see the same thing on all folders. You can tick the
checkbox and click the "Apply" button to make all the files in the
folder Read-Only in one easy move.  It doesn't make the folder
Read-Only, and if you close and re-open the Properties dialog after
ticking the checkbox you'll find the coloured square will reappear.

-- 
Michael
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Re: [Tutor] Cannot open SQLite database

[Tim Golden]

On 25/02/2010 15:18, Michael M Mason wrote:

ALAN GAULD wrote on 25 February 2010 at 08:50:-


So I think that was a red herring, sorry.
It also looks like the Read Only check box in the main
Explorer property dialog tab doesn't mean what it says...


Doesn't the Read Only checkbox have a coloured square rather than
a tick?

AFAIK the coloured square is intended to mean "doesn't apply", and
you should see the same thing on all folders. You can tick the
checkbox and click the "Apply" button to make all the files in the
folder Read-Only in one easy move.  It doesn't make the folder
Read-Only, and if you close and re-open the Properties dialog after
ticking the checkbox you'll find the coloured square will reappear.



Haven't been following this thread, but just picking up on this: the
read-only attribute on folders means: this is a special folder
(eg My Documents). There's no way to make a directory read-only
like this...

TJG
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[Tutor] raising number to a power

[Monte Milanuk]

Is there a benefit (besides brevity) one way or the other between using:

import math
...
math.pow(x,y)  # x raised to the power y

vs.

x**y

?

Thanks,

Monte
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Re: [Tutor] raising number to a power

[Stefan Behnel]

Monte Milanuk, 25.02.2010 16:47:
> Is there a benefit (besides brevity) one way or the other between using:
> 
> import math
> ...
> math.pow(x,y)  # x raised to the power y
> 
> vs.
> 
> x**y
> 
> ?

Did you try it?

>>> import math
>>> print(math.pow(4,4))
256.0
>>> 4**4
256
>>> 4.0**4
256.0

Stefan

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Re: [Tutor] raising number to a power

[Stefan Behnel]

Monte Milanuk, 25.02.2010 16:47:
> Is there a benefit (besides brevity) one way or the other between using:
> 
> import math
> ...
> math.pow(x,y)  # x raised to the power y
> 
> vs.
> 
> x**y
> 
> ?

You might also be interested in this:

http://docs.python.org/reference/datamodel.html#emulating-numeric-types

The difference is that math.pow() is a function that works on two float
values, whereas '**' is an operator that can work on anything, including
your own classes. It's the number types that define the operator as meaning
the power function, not the operator itself.

Stefan

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Re: [Tutor] raising number to a power

[Steven D'Aprano]

On Fri, 26 Feb 2010 05:34:39 am Ricardo Aráoz wrote:

> So why would the coders of the math module go to the trouble of
> creating the pow function? 

http://docs.python.org/library/math.html#math.pow
http://docs.python.org/library/functions.html#pow

The math module is mostly a thin wrapper around the native C maths 
library. The builtin pow function has more capabilities, and came 
before the ** operator.


> Did they create a sum function 

As a matter of fact they did:

http://docs.python.org/library/math.html#math.fsum



-- 
Steven D'Aprano
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Re: [Tutor] raising number to a power

[Wayne Werner]

2010/2/25 Ricardo Aráoz 

>  Stefan Behnel wrote:
> So why would the coders of the math module go to the trouble of creating
> the pow function? Did they create a sum function and a subtract function?
> It seems to me the question has not been properly answered. When to use
> one, when to use the other?
> If you don't know the answer it's all right. I don't know it either.
>

Only a theory:

Perhaps for familiarities sake - many other languages (and all of them that
I know with a math library) have something like, if not, math.pow(base,
exp), so it could be they wanted to allow that similarity...

or it could just be from way back in the early days of Python?

just my thoughts on the subject,
Wayne
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Re: [Tutor] raising number to a power

[Ricardo Aráoz]

Stefan Behnel wrote:
> Monte Milanuk, 25.02.2010 16:47:
>   
>> Is there a benefit (besides brevity) one way or the other between using:
>>
>> import math
>> ...
>> math.pow(x,y)  # x raised to the power y
>>
>> vs.
>>
>> x**y
>>
>> ?
>> 
>
> You might also be interested in this:
>
> http://docs.python.org/reference/datamodel.html#emulating-numeric-types
>
> The difference is that math.pow() is a function that works on two float
> values, whereas '**' is an operator that can work on anything, including
> your own classes. It's the number types that define the operator as meaning
> the power function, not the operator itself.
>   

So why would the coders of the math module go to the trouble of creating
the pow function? Did they create a sum function and a subtract function?
It seems to me the question has not been properly answered. When to use
one, when to use the other?
If you don't know the answer it's all right. I don't know it either.

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Re: [Tutor] raising number to a power

[Steven D'Aprano]

On Fri, 26 Feb 2010 04:27:06 am Monte Milanuk wrote:
> So... pow(4,4) is equivalent to 4**4, which works on anything -
> integers, floats, etc., but math.pow(4,4) only works on floats... and
> in this case it converts or interprets (4,4) as (4.0,4.0), hence
> returning a float: 256.0. Is that about right?

Pretty much, but the builtin pow also takes an optional third argument:

>>> pow(4, 4, 65)  # same as 4**4 % 65 only more efficient
61

By the way, are you aware that you can get help in the interactive 
interpreter?

help(pow)


-- 
Steven D'Aprano
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Re: [Tutor] raising number to a power

[Ricardo Aráoz]

Stefan Behnel wrote:
> Monte Milanuk, 25.02.2010 16:47:
>   
>> Is there a benefit (besides brevity) one way or the other between using:
>>
>> import math
>> ...
>> math.pow(x,y)  # x raised to the power y
>>
>> vs.
>>
>> x**y
>>
>> ?
>> 
>
> Did you try it?
>
> >>> import math
> >>> print(math.pow(4,4))
> 256.0
> >>> 4**4
> 256
> >>> 4.0**4
> 256.0
>
> Stefan
>   
Yes, I tried it.
Now, is there a benefit (besides brevity) one way or the other?

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Re: [Tutor] raising number to a power

[salaiman alrayes]

i'm not an expert, but i have worked with "import math".
i believe if you use import math; it will make you capable of using  
all kinds of math in python (sin,cos,sin^-1..)
i recommend you google "python math" or "python import math", and that  
will take you to the library reference.

its helpful.
On Feb 25, 2010, at 1:35 PM, Ricardo Aráoz wrote:


Stefan Behnel wrote:


Monte Milanuk, 25.02.2010 16:47:

Is there a benefit (besides brevity) one way or the other between  
using:


import math
...
math.pow(x,y)  # x raised to the power y

vs.

x**y

?



Did you try it?

>>> import math
>>> print(math.pow(4,4))
256.0
>>> 4**4
256
>>> 4.0**4
256.0

Stefan


Yes, I tried it.
Now, is there a benefit (besides brevity) one way or the other?

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Re: [Tutor] raising number to a power

[Stefan Behnel]

Monte Milanuk, 25.02.2010 18:27:
> So... pow(4,4) is equivalent to 4**4, which works on anything - integers,
> floats, etc.

Correct, e.g.

  >>> class Test(object):
  ...   def __pow__(self, other, modulo=None):
  ...   print("POW!")
  ...   return 'tutu'
  ...
  >>> pow(Test(), 4)
  POW!
  'tutu'
  >>> Test() ** 4
  POW!
  'tutu'

But:

  >>> pow(Test(), 4, 5)
  POW!
  'tutu'

The pow() function has a 3-argument form that efficiently calculates the
modulo. There is no operator for that, and, IMHO, that's the raison d'être
for the pow() function in the first place.


> but math.pow(4,4) only works on floats... and in this case it
> converts or interprets (4,4) as (4.0,4.0), hence returning a float: 256.0.
> Is that about right?

Yes. Read the docs:

"""
10.2. math — Mathematical functions

This module is always available. It provides access to the mathematical
functions defined by the C standard.
[...]
The following functions are provided by this module. Except when explicitly
noted otherwise, all return values are floats.
"""

http://docs.python.org/library/math.html

So these are purely numeric and therefore actually pretty fast functions,
which is /their/ raison d'être.

$ python3.1 -m timeit -s 'from math import pow as mpow'  'pow(2,2)'
100 loops, best of 3: 0.562 usec per loop
$ python3.1 -m timeit -s 'from math import pow as mpow'  'mpow(2,2)'
1000 loops, best of 3: 0.18 usec per loop

However:

$ python3.1 -m timeit -s 'from math import pow as mpow'  '2**2'
1000 loops, best of 3: 0.0247 usec per loop

Stefan

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Re: [Tutor] test

[vince spicer]

On Thu, Feb 25, 2010 at 4:03 PM, Kirk Bailey wrote:

> test
> --
>
>
> Cheers!
>  -Kirk D Bailey
>
>  THINK
> +-+
>  .*.| BOX |
>  ..*+-+
>  *** THINK
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Hello World! << usually a good test
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Re: [Tutor] Omitting lines matching a list of strings from a file

[Alan Gauld]

"Christian Witts"  wrote



lines = [line for line in infile if line[146:148] not in omit_states]
print ''.join(lines)

Just remember that doing a list comprehension like that on a large file 
will drastically reduce the speed of your application as well as 
introduce memory bloat.


Given he was originally doing an explicit for loop over the file I doubt if
the comprehension will be any slower. But it may well use  more memory.

Alan G. 



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[Tutor] test

[Kirk Bailey]

test
--


Cheers!
  -Kirk D Bailey

  THINK
 +-+
  .*.| BOX |
  ..*+-+
  *** THINK
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[Tutor] test again

[Kirk Bailey]

test- where is the list, nothing is coming to me!

--


Cheers!
  -Kirk D Bailey

  THINK
 +-+
  .*.| BOX |
  ..*+-+
  *** THINK
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[Tutor] wHY

[Kirk Bailey]

IS NOTHING FROM THE LIST COMING TO ME?

--


Cheers!
  -Kirk D Bailey

  THINK
 +-+
  .*.| BOX |
  ..*+-+
  *** THINK
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Re: [Tutor] test again

[Kirk Bailey]

ook, thi new thunderbird 3.foo is... different, takes some getting used to. 
Sorry about the noise on the channel.



On 2/25/2010 5:31 PM, Kirk Bailey wrote:

test- where is the list, nothing is coming to me!



--


Cheers!
  -Kirk D Bailey

  THINK
 +-+
  .*.| BOX |
  ..*+-+
  *** THINK
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Re: [Tutor] wHY

[Luke Paireepinart]

YOU DON'T GET YOUR OWN MESSAGES BACK.

On Thu, Feb 25, 2010 at 5:11 PM, Kirk Bailey wrote:

> IS NOTHING FROM THE LIST COMING TO ME?
>
> --
>
>
> Cheers!
>  -Kirk D Bailey
>
>  THINK
> +-+
>  .*.| BOX |
>  ..*+-+
>  *** THINK
> ___
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Re: [Tutor] wHY

[Antonio de la Fuente]

Definitely there is somebody out there :)

* Kirk Bailey  [2010-02-25 18:11:57 -0500]:

> Date: Thu, 25 Feb 2010 18:11:57 -0500
> From: Kirk Bailey 
> To: tutor@python.org
> Subject: [Tutor] wHY
> Organization: Silas Dent Memorial Cabal of ERIS Esoteric and hot dog
>  boiling
>   society FNORD!
> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
>   rv:1.9.1.8) Gecko/20100216 Thunderbird/3.0.2
> Message-ID: <4b8703bd.8010...@howlermonkey.net>
> 
> IS NOTHING FROM THE LIST COMING TO ME?
> 
> -- 
> 
> 
> Cheers!
>   -Kirk D Bailey
> 
>   THINK
>  +-+
>   .*.| BOX |
>   ..*+-+
>   *** THINK
> ___
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-- 
-
Antonio de la Fuente Martínez
E-mail: t...@muybien.org
-

Classical music is the kind we keep thinking will turn into a tune.
-- Kin Hubbard, "Abe Martin's Sayings"
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Re: [Tutor] wHY

[Alan Gauld]

"Kirk Bailey"  wrote


IS NOTHING FROM THE LIST COMING TO ME?



Stating the obvious first - have you checked your subscription 
settings? Have you got delivery switched on?


Have you tried switching it off then on again just to be sure?

Alan G.

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[Tutor] returning to my quest

[Kirk Bailey]

for  WEBMAIIL portal to a pop3/smtp email service in my server; centrally 
hosted or in the laptop is fine, what can people recommend? Without going 
to IMAP, i want to leave the mail on the server.


--


Cheers!
  -Kirk D Bailey

  THINK
 +-+
  .*.| BOX |
  ..*+-+
  *** THINK
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[Tutor] Top posters for 2009

[Kent Johnson]

It's not really about keeping score :-), but once again I've compiled
a list of the top 20 posters to the tutor list for the last year. For
2009, the rankings are

2009 (7730 posts, 709 posters)

Alan Gauld 969 (12.5%)
Kent Johnson 804 (10.4%)
Dave Angel 254 (3.3%)
spir 254 (3.3%)
Wayne Watson 222 (2.9%)
bob gailer 191 (2.5%)
Lie Ryan 186 (2.4%)
David 127 (1.6%)
Emile van Sebille 115 (1.5%)
Wayne 112 (1.4%)
Sander Sweers 111 (1.4%)
Serdar Tumgoren 100 (1.3%)
Luke Paireepinart 99 (1.3%)
wesley chun 99 (1.3%)
W W 74 (1.0%)
Marc Tompkins 72 (0.9%)
A.T.Hofkamp 71 (0.9%)
Robert Berman 68 (0.9%)
vince spicer 63 (0.8%)
Emad Nawfal 62 (0.8%)

Alan, congratulations, you pulled ahead of me for the first time in
years! You posted more than in 2008, I posted less. Overall posts are
up from last year, which was the slowest year since I started
measuring (2003).

Thank you to everyone who asks and answers questions here!

The rankings are compiled by scraping the monthly author pages from
the tutor archives, using Beautiful Soup to extract author names. I
consolidate counts for different capitalizations of the same name but
not for different spellings. The script is below.

Kent

''' Counts all posts to Python-tutor by author'''
# -*- coding: latin-1 -*-
from datetime import date, timedelta
import operator, urllib2
from BeautifulSoup import BeautifulSoup

today = date.today()

for year in range(2009, 2010):
startDate = date(year, 1, 1)
endDate = date(year, 12, 31)
thirtyOne = timedelta(days=31)
counts = {}

# Collect all the counts for a year by scraping the monthly author
archive pages
while startDate < endDate and startDate < today:
dateString = startDate.strftime('%Y-%B')

url = 'http://mail.python.org/pipermail/tutor/%s/author.html'
% dateString
data = urllib2.urlopen(url).read()
soup = BeautifulSoup(data)

li = soup.findAll('li')[2:-2]

for l in li:
name = l.i.string.strip()
counts[name] = counts.get(name, 0) + 1

startDate += thirtyOne

# Consolidate names that vary by case under the most popular spelling
nameMap = dict() # Map lower-case name to most popular name

# Use counts.items() so we can delete from the dict.
for name, count in sorted(counts.items(),
key=operator.itemgetter(1), reverse=True):
   lower = name.lower()
   if lower in nameMap:
  # Add counts for a name we have seen already and remove the duplicate
  counts[nameMap[lower]] += count
  del counts[name]
   else:
  nameMap[lower] = name

totalPosts = sum(counts.itervalues())
posters = len(counts)

print
print '%s (%s posts, %s posters)' % (year, totalPosts, posters)
print ''
for name, count in sorted(counts.iteritems(),
key=operator.itemgetter(1), reverse=True)[:20]:
pct = round(100.0*count/totalPosts, 1)
print '%s %s (%s%%)' % (name.encode('utf-8',
'xmlcharrefreplace'), count, pct)
print
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Re: [Tutor] returning to my quest

[Kent Johnson]

On Thu, Feb 25, 2010 at 8:59 PM, Kirk Bailey  wrote:
> for  WEBMAIIL portal to a pop3/smtp email service in my server; centrally
> hosted or in the laptop is fine, what can people recommend? Without going to
> IMAP, i want to leave the mail on the server.

I still have no idea what you are asking for. What is a WEBMAIL
portal? Are you trying to access mail that has a web interface, or
create a web interface for an existing POP mailbox, or what?

Oh, and what does this have to do with Python?

Kent
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Re: [Tutor] Top posters for 2009

[Shashwat Anand]

nice. Kudos to all top posters. May be I should search my rank ;)

~l0nwlf

On Fri, Feb 26, 2010 at 8:23 AM, Kent Johnson  wrote:

> It's not really about keeping score :-), but once again I've compiled
> a list of the top 20 posters to the tutor list for the last year. For
> 2009, the rankings are
>
> 2009 (7730 posts, 709 posters)
> 
> Alan Gauld 969 (12.5%)
> Kent Johnson 804 (10.4%)
> Dave Angel 254 (3.3%)
> spir 254 (3.3%)
> Wayne Watson 222 (2.9%)
> bob gailer 191 (2.5%)
> Lie Ryan 186 (2.4%)
> David 127 (1.6%)
> Emile van Sebille 115 (1.5%)
> Wayne 112 (1.4%)
> Sander Sweers 111 (1.4%)
> Serdar Tumgoren 100 (1.3%)
> Luke Paireepinart 99 (1.3%)
> wesley chun 99 (1.3%)
> W W 74 (1.0%)
> Marc Tompkins 72 (0.9%)
> A.T.Hofkamp 71 (0.9%)
> Robert Berman 68 (0.9%)
> vince spicer 63 (0.8%)
> Emad Nawfal 62 (0.8%)
>
> Alan, congratulations, you pulled ahead of me for the first time in
> years! You posted more than in 2008, I posted less. Overall posts are
> up from last year, which was the slowest year since I started
> measuring (2003).
>
> Thank you to everyone who asks and answers questions here!
>
> The rankings are compiled by scraping the monthly author pages from
> the tutor archives, using Beautiful Soup to extract author names. I
> consolidate counts for different capitalizations of the same name but
> not for different spellings. The script is below.
>
> Kent
>
> ''' Counts all posts to Python-tutor by author'''
> # -*- coding: latin-1 -*-
> from datetime import date, timedelta
> import operator, urllib2
> from BeautifulSoup import BeautifulSoup
>
> today = date.today()
>
> for year in range(2009, 2010):
>startDate = date(year, 1, 1)
>endDate = date(year, 12, 31)
>thirtyOne = timedelta(days=31)
>counts = {}
>
># Collect all the counts for a year by scraping the monthly author
> archive pages
>while startDate < endDate and startDate < today:
>dateString = startDate.strftime('%Y-%B')
>
>url = 'http://mail.python.org/pipermail/tutor/%s/author.html'
> % dateString
>data = urllib2.urlopen(url).read()
>soup = BeautifulSoup(data)
>
>li = soup.findAll('li')[2:-2]
>
>for l in li:
>name = l.i.string.strip()
>counts[name] = counts.get(name, 0) + 1
>
>startDate += thirtyOne
>
># Consolidate names that vary by case under the most popular spelling
>nameMap = dict() # Map lower-case name to most popular name
>
># Use counts.items() so we can delete from the dict.
>for name, count in sorted(counts.items(),
> key=operator.itemgetter(1), reverse=True):
>   lower = name.lower()
>   if lower in nameMap:
>  # Add counts for a name we have seen already and remove the
> duplicate
>  counts[nameMap[lower]] += count
>  del counts[name]
>   else:
>  nameMap[lower] = name
>
>totalPosts = sum(counts.itervalues())
>posters = len(counts)
>
>print
>print '%s (%s posts, %s posters)' % (year, totalPosts, posters)
>print ''
>for name, count in sorted(counts.iteritems(),
> key=operator.itemgetter(1), reverse=True)[:20]:
>pct = round(100.0*count/totalPosts, 1)
>print '%s %s (%s%%)' % (name.encode('utf-8',
> 'xmlcharrefreplace'), count, pct)
>print
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Re: [Tutor] Top posters for 2009

[Shashwat Anand]

How about Top-40 posters (so that I can make the cut..Yayyy) :P

2009 (7730 posts, 709 posters)

Alan Gauld 969 (12.5%)
Kent Johnson 804 (10.4%)
Dave Angel 254 (3.3%)
spir 254 (3.3%)
Wayne Watson 222 (2.9%)
bob gailer 191 (2.5%)
Lie Ryan 186 (2.4%)
David 127 (1.6%)
Emile van Sebille 115 (1.5%)
Wayne 112 (1.4%)
Sander Sweers 111 (1.4%)
Serdar Tumgoren 100 (1.3%)
Luke Paireepinart 99 (1.3%)
wesley chun 99 (1.3%)
W W 74 (1.0%)
Marc Tompkins 72 (0.9%)
A.T.Hofkamp 71 (0.9%)
Robert Berman 68 (0.9%)
vince spicer 63 (0.8%)
Emad Nawfal 62 (0.8%)
Andre Engels 61 (0.8%)
Rich Lovely 60 (0.8%)
Christian Witts 57 (0.7%)
Martin Walsh 51 (0.7%)
Eduardo Vieira 47 (0.6%)
Tim Golden 47 (0.6%)
prasad rao 47 (0.6%)
Dinesh B Vadhia 47 (0.6%)
John Fouhy 42 (0.5%)
Norman Khine 41 (0.5%)
Che M 41 (0.5%)
Stephen Nelson-Smith 40 (0.5%)
Mark Tolonen 40 (0.5%)
Chris Fuller 38 (0.5%)
Stefan Behnel 35 (0.5%)
Wayne Werner 34 (0.4%)
Steve Willoughby 32 (0.4%)
Shashwat Anand 32 (0.4%)
Eike Welk 31 (0.4%)
Albert-Jan Roskam 30 (0.4%)

~l0nwlf

On Fri, Feb 26, 2010 at 9:04 AM, Shashwat Anand wrote:

> nice. Kudos to all top posters. May be I should search my rank ;)
>
> ~l0nwlf
>
>
> On Fri, Feb 26, 2010 at 8:23 AM, Kent Johnson  wrote:
>
>> It's not really about keeping score :-), but once again I've compiled
>> a list of the top 20 posters to the tutor list for the last year. For
>> 2009, the rankings are
>>
>> 2009 (7730 posts, 709 posters)
>> 
>> Alan Gauld 969 (12.5%)
>> Kent Johnson 804 (10.4%)
>> Dave Angel 254 (3.3%)
>> spir 254 (3.3%)
>> Wayne Watson 222 (2.9%)
>> bob gailer 191 (2.5%)
>> Lie Ryan 186 (2.4%)
>> David 127 (1.6%)
>> Emile van Sebille 115 (1.5%)
>> Wayne 112 (1.4%)
>> Sander Sweers 111 (1.4%)
>> Serdar Tumgoren 100 (1.3%)
>> Luke Paireepinart 99 (1.3%)
>> wesley chun 99 (1.3%)
>> W W 74 (1.0%)
>> Marc Tompkins 72 (0.9%)
>> A.T.Hofkamp 71 (0.9%)
>> Robert Berman 68 (0.9%)
>> vince spicer 63 (0.8%)
>> Emad Nawfal 62 (0.8%)
>>
>> Alan, congratulations, you pulled ahead of me for the first time in
>> years! You posted more than in 2008, I posted less. Overall posts are
>> up from last year, which was the slowest year since I started
>> measuring (2003).
>>
>> Thank you to everyone who asks and answers questions here!
>>
>> The rankings are compiled by scraping the monthly author pages from
>> the tutor archives, using Beautiful Soup to extract author names. I
>> consolidate counts for different capitalizations of the same name but
>> not for different spellings. The script is below.
>>
>> Kent
>>
>> ''' Counts all posts to Python-tutor by author'''
>> # -*- coding: latin-1 -*-
>> from datetime import date, timedelta
>> import operator, urllib2
>> from BeautifulSoup import BeautifulSoup
>>
>> today = date.today()
>>
>> for year in range(2009, 2010):
>>startDate = date(year, 1, 1)
>>endDate = date(year, 12, 31)
>>thirtyOne = timedelta(days=31)
>>counts = {}
>>
>># Collect all the counts for a year by scraping the monthly author
>> archive pages
>>while startDate < endDate and startDate < today:
>>dateString = startDate.strftime('%Y-%B')
>>
>>url = 'http://mail.python.org/pipermail/tutor/%s/author.html'
>> % dateString
>>data = urllib2.urlopen(url).read()
>>soup = BeautifulSoup(data)
>>
>>li = soup.findAll('li')[2:-2]
>>
>>for l in li:
>>name = l.i.string.strip()
>>counts[name] = counts.get(name, 0) + 1
>>
>>startDate += thirtyOne
>>
>># Consolidate names that vary by case under the most popular spelling
>>nameMap = dict() # Map lower-case name to most popular name
>>
>># Use counts.items() so we can delete from the dict.
>>for name, count in sorted(counts.items(),
>> key=operator.itemgetter(1), reverse=True):
>>   lower = name.lower()
>>   if lower in nameMap:
>>  # Add counts for a name we have seen already and remove the
>> duplicate
>>  counts[nameMap[lower]] += count
>>  del counts[name]
>>   else:
>>  nameMap[lower] = name
>>
>>totalPosts = sum(counts.itervalues())
>>posters = len(counts)
>>
>>print
>>print '%s (%s posts, %s posters)' % (year, totalPosts, posters)
>>print ''
>>for name, count in sorted(counts.iteritems(),
>> key=operator.itemgetter(1), reverse=True)[:20]:
>>pct = round(100.0*count/totalPosts, 1)
>>print '%s %s (%s%%)' % (name.encode('utf-8',
>> 'xmlcharrefreplace'), count, pct)
>>print
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Re: [Tutor] Top posters for 2009

[Shashwat Anand]

@Kent: thanks for the script. It is kool.

Here is 2010 list of Top-20 (as of now):

2010 (1155 posts, 204 posters)

Alan Gauld 127 (11.0%)
Kent Johnson 108 (9.4%)
spir 52 (4.5%)
Wayne Watson 46 (4.0%)
Luke Paireepinart 32 (2.8%)
Shashwat Anand 30 (2.6%)
Wayne Werner 29 (2.5%)
Steven D'Aprano 28 (2.4%)
Stefan Behnel 24 (2.1%)
Dave Angel 22 (1.9%)
Lie Ryan 19 (1.6%)
Hugo Arts 16 (1.4%)
Benno Lang 14 (1.2%)
David 14 (1.2%)
Giorgio 14 (1.2%)
Serdar Tumgoren 14 (1.2%)
Grigor Kolev 13 (1.1%)
Eike Welk 13 (1.1%)
Christian Witts 12 (1.0%)
invincible patriot 12 (1.0%)

No more spamming now :P

~l0nwlf

On Fri, Feb 26, 2010 at 9:10 AM, Shashwat Anand wrote:

> How about Top-40 posters (so that I can make the cut..Yayyy) :P
>
>
> 2009 (7730 posts, 709 posters)
> 
> Alan Gauld 969 (12.5%)
> Kent Johnson 804 (10.4%)
> Dave Angel 254 (3.3%)
> spir 254 (3.3%)
> Wayne Watson 222 (2.9%)
> bob gailer 191 (2.5%)
> Lie Ryan 186 (2.4%)
> David 127 (1.6%)
> Emile van Sebille 115 (1.5%)
> Wayne 112 (1.4%)
> Sander Sweers 111 (1.4%)
> Serdar Tumgoren 100 (1.3%)
> Luke Paireepinart 99 (1.3%)
> wesley chun 99 (1.3%)
> W W 74 (1.0%)
> Marc Tompkins 72 (0.9%)
> A.T.Hofkamp 71 (0.9%)
> Robert Berman 68 (0.9%)
> vince spicer 63 (0.8%)
> Emad Nawfal 62 (0.8%)
> Andre Engels 61 (0.8%)
> Rich Lovely 60 (0.8%)
> Christian Witts 57 (0.7%)
> Martin Walsh 51 (0.7%)
> Eduardo Vieira 47 (0.6%)
> Tim Golden 47 (0.6%)
> prasad rao 47 (0.6%)
> Dinesh B Vadhia 47 (0.6%)
> John Fouhy 42 (0.5%)
> Norman Khine 41 (0.5%)
> Che M 41 (0.5%)
> Stephen Nelson-Smith 40 (0.5%)
> Mark Tolonen 40 (0.5%)
> Chris Fuller 38 (0.5%)
> Stefan Behnel 35 (0.5%)
> Wayne Werner 34 (0.4%)
> Steve Willoughby 32 (0.4%)
> Shashwat Anand 32 (0.4%)
> Eike Welk 31 (0.4%)
> Albert-Jan Roskam 30 (0.4%)
>
> ~l0nwlf
>
>
> On Fri, Feb 26, 2010 at 9:04 AM, Shashwat Anand 
> wrote:
>
>> nice. Kudos to all top posters. May be I should search my rank ;)
>>
>> ~l0nwlf
>>
>>
>> On Fri, Feb 26, 2010 at 8:23 AM, Kent Johnson  wrote:
>>
>>> It's not really about keeping score :-), but once again I've compiled
>>> a list of the top 20 posters to the tutor list for the last year. For
>>> 2009, the rankings are
>>>
>>> 2009 (7730 posts, 709 posters)
>>> 
>>> Alan Gauld 969 (12.5%)
>>> Kent Johnson 804 (10.4%)
>>> Dave Angel 254 (3.3%)
>>> spir 254 (3.3%)
>>> Wayne Watson 222 (2.9%)
>>> bob gailer 191 (2.5%)
>>> Lie Ryan 186 (2.4%)
>>> David 127 (1.6%)
>>> Emile van Sebille 115 (1.5%)
>>> Wayne 112 (1.4%)
>>> Sander Sweers 111 (1.4%)
>>> Serdar Tumgoren 100 (1.3%)
>>> Luke Paireepinart 99 (1.3%)
>>> wesley chun 99 (1.3%)
>>> W W 74 (1.0%)
>>> Marc Tompkins 72 (0.9%)
>>> A.T.Hofkamp 71 (0.9%)
>>> Robert Berman 68 (0.9%)
>>> vince spicer 63 (0.8%)
>>> Emad Nawfal 62 (0.8%)
>>>
>>> Alan, congratulations, you pulled ahead of me for the first time in
>>> years! You posted more than in 2008, I posted less. Overall posts are
>>> up from last year, which was the slowest year since I started
>>> measuring (2003).
>>>
>>> Thank you to everyone who asks and answers questions here!
>>>
>>> The rankings are compiled by scraping the monthly author pages from
>>> the tutor archives, using Beautiful Soup to extract author names. I
>>> consolidate counts for different capitalizations of the same name but
>>> not for different spellings. The script is below.
>>>
>>> Kent
>>>
>>> ''' Counts all posts to Python-tutor by author'''
>>> # -*- coding: latin-1 -*-
>>> from datetime import date, timedelta
>>> import operator, urllib2
>>> from BeautifulSoup import BeautifulSoup
>>>
>>> today = date.today()
>>>
>>> for year in range(2009, 2010):
>>>startDate = date(year, 1, 1)
>>>endDate = date(year, 12, 31)
>>>thirtyOne = timedelta(days=31)
>>>counts = {}
>>>
>>># Collect all the counts for a year by scraping the monthly author
>>> archive pages
>>>while startDate < endDate and startDate < today:
>>>dateString = startDate.strftime('%Y-%B')
>>>
>>>url = 'http://mail.python.org/pipermail/tutor/%s/author.html'
>>> % dateString
>>>data = urllib2.urlopen(url).read()
>>>soup = BeautifulSoup(data)
>>>
>>>li = soup.findAll('li')[2:-2]
>>>
>>>for l in li:
>>>name = l.i.string.strip()
>>>counts[name] = counts.get(name, 0) + 1
>>>
>>>startDate += thirtyOne
>>>
>>># Consolidate names that vary by case under the most popular spelling
>>>nameMap = dict() # Map lower-case name to most popular name
>>>
>>># Use counts.items() so we can delete from the dict.
>>>for name, count in sorted(counts.items(),
>>> key=operator.itemgetter(1), reverse=True):
>>>   lower = name.lower()
>>>   if lower in nameMap:
>>>  # Add counts for a name we have seen already and remove the
>>> duplicate
>>>  counts[nameMap[lower]] += count
>>>  del counts[name]
>>>   else:
>>>  nameMap[lower] = name
>>>
>>>totalPosts = sum(counts.itervalues())
>>>posters = len(counts)
>>>
>>>p

Re: [Tutor] returning to my quest

[Benno Lang]

On 26 February 2010 11:55, Kent Johnson  wrote:
> On Thu, Feb 25, 2010 at 8:59 PM, Kirk Bailey  wrote:
>> for  WEBMAIIL portal to a pop3/smtp email service in my server; centrally
>> hosted or in the laptop is fine, what can people recommend? Without going to
>> IMAP, i want to leave the mail on the server.
>
> I still have no idea what you are asking for. What is a WEBMAIL
> portal? Are you trying to access mail that has a web interface, or
> create a web interface for an existing POP mailbox, or what?
>
> Oh, and what does this have to do with Python?

I'm pretty sure he wants to be able to install some python software on
a server that will provide a web interface for accessing a POP mail
account.
For PHP there's squirrel mail, horde imp, roundcube, etc.

I can't seem to find any at all for Python, at least none that have
been worked on in the last 5 years.
Does anyone else know?

Thanks,
benno
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[Tutor] PyAutoRun

[Zubin Mithra]

I have been using python for quite some time; however this is the
first python project i have worked on.

The code is hosted at http://github.com/zubin71/PyAutoRun

The code needs re-factoring and feature additions; i have put up a
TODO list there too. It`d be great if anyone could work on this; i
intend to develop this further(with a bit of help) and will request
for its addition into debian and ubuntu repositories, in time.

Also, any kind of code-review, criticism, is also appreciated.
However, it`d be awesome if you could just fork it at github, pull,
modify and push. :)

Have a nice day!

cheers!!!
Zubin
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