gmane.comp.python.tutor

Re: Using a Blackjack Chart...

Joel Goldstick — 2012-05-22T13:08:32


There are lots of google results for python card games -- have you
explored those?

As to mysql it works fine on linux.  If your system doesn't have mysql
you can use synaptic package manager  to get it  Look for
mysql-server, mysql-client and python-mysqldb

import MySQLdb as mdb

Using a Blackjack Chart...

Ken G. — 2012-05-22T12:52:24

I would like to create a Python program in the manner of an using flash 
card format.
That is, a question is asked and you can respond according and you will 
be notify if
you are correct or incorrect.

Using such format stated above, I would like to create a Blackjack 
program.  I wish
to utilize a 'cheat sheet chart' format that provide the proper response.

The chart has 10 rows across, being identified as the dealer's up card, 
from 2 to
10 plus Ace.

There are 23 columns indicating the player's cards being shown, such as 
8 to 12,
13-16, 17+, A2 to A8 and 2,2 to A,A.

Each row and column would indicate either Hit, DD (Double), S (Stand) 
and SP
(Split).

How can I best utilize such a chart in the Python program?  Lists, 
Tuples, Dictionary
or perhaps, a database format such as SQL?  I tried using MySQLdb but 
was unable
to use it since I am using Ubuntu 10.04.4 (Linux) as my main OS.  My 
other OS is
Windows XP.

Thank you for any suggestions or guidances.

Ken
__________________________________________

Re: Optimally configuring Emacs for W7-64bit and Python

Brian van den Broek — 2012-05-22T08:58:49

boB,

Having been the emacs advocate, I feel some obligation to try to help.
However, 1) my last Windows use is a dim memory, and 2) I am just now
embarking on a period of travel and uncertain connectivity. So, apologies,
but I will not be able to provide much (any?) help in the immediate future.

(If emacs seems like you will stick to it, do have a look at orgmode.)

Best and good luck,

Brian vdB
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Optimally configuring Emacs for W7-64bit and Python

boB Stepp — 2012-05-22T03:26:37

Many thanks for all of the helpful input to my original questions. The
deciding factors came down to the fact that GNU Emacs, vintage year
2001, is available on the Sun Blade at work, I already own the book
"Learning GNU Emacs" and it would be nice to have my fingers trained
the same way for both work and home study.

What is the best way for me to get my W7-64bit laptop configured for
Python programming? My consultations with the Google oracle have
yielded inconclusive results this evening, though I confess I am quite
tired, so I may be missing the obvious.

Re: Datetime Integer Array

Emile van Sebille — 2012-05-21T22:07:45

On 5/21/2012 1:04 PM Jeremy Traurig said...


Using only builtin python functions you can do this as follows:

 >>> source = ['03/10/2010 02:00:00',
... '03/10/2010 02:10:00',
... '03/10/2010 02:20:00',
... '03/10/2010 02:30:00']
 >>>
 >>> for ts in source:
...     print ts, [ int(ii) for ii in 
ts.replace("/","").replace(":","").split() ]
...
03/10/2010 02:00:00 [3, 10, 2010, 2, 0, 0]
03/10/2010 02:10:00 [3, 10, 2010, 2, 10, 0]
03/10/2010 02:20:00 [3, 10, 2010, 2, 20, 0]
03/10/2010 02:30:00 [3, 10, 2010, 2, 30, 0]

HTH,

Emile

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Re: While learning Py: To IDE or not to IDE?

Walter Prins — 2012-05-21T21:48:13

Hi,

On 21 May 2012 15:17, bob gailer <bgailer< at >gmail.com> wrote:


I'd like to add that if/when you do decide to pick up an IDE, I suggest you
try Eclipse.  For one it will allow you to use it for other languages also
(Java, C++, et al).  Have a look at the following video demonstrating some
of the PyDev features in the following video (also a little demonstration
how to develop TDD "red, green, refactor" style) :
http://pydev.org/video_pydev_20.html  Unit testing (PyUnit & friends),
Source code style and problem checking (Pylint), code test coverage
(Coverage.py) are all usable from and integrated reasonably well, making
life just that little bit easier.

Walter
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Re: Fwd: Is this possible and should it be done?

Jordan — 2012-05-21T20:24:39


On 05/21/2012 07:24 PM, Alan Gauld wrote:
Very interesting idea, I have actually used a SQLite file in this way
before, not sure why I did not think of that possibility. SQLite's BLOB
could be the perfect already created solution. Thank you all for your
inputs.
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Datetime Integer Array

Jeremy Traurig — 2012-05-21T20:04:26

Hello,

I am reading a data file with a string time stamp as the first column,
example below:

'03/10/2010 02:00:00'
'03/10/2010 02:10:00'
'03/10/2010 02:20:00'
'03/10/2010 02:30:00'
etc to n number of rows.

I'm using the numpy function genfromtxt to read this data:

import numpy as np
datetime_IN = np.genfromtxt('SIL633_original.txt', delimiter='\t',
skip_header=141, dtype='|S19',
usecols=0)

Now I have a variable called datetime_IN which is an array of datetime
strings to the nth row. I'd like to convert this strings to a numpy
array of integers where each column represents a value of time.
For example, using the same values above, i want an array of integers
to look like this:

3,10,2010,2,0,0
3,10,2010,2,10,0
3,10,2010,2,20,0
3,10,2010,2,30,0
etc to n number of rows.

I have already tried creating a numpy array of integers using this code:

import time
time_format = %m/%d/%Y %H:%M:%S
for x in range(len(datetime_IN)):
    junk = time.strptime(datetime[x],time_format)
    junk2 = [y for y in junk]

The

Re: Coding Challenges

Bod Soutar — 2012-05-21T18:34:57

Pop onto http://ubuntuforums.org and find the programming talk sub-forum.
One of the stickies there is an index of beginner programming challenges.
It's a rolling process where the winner of the previous challenge posts a
new one and then picks a winning entry who goes on to post the next
challenge.

Bodsda

On May 21, 2012 3:50 PM, "Malcolm Newsome" <malcolm.newsome< at >gmail.com>
wrote:
I've been asked to write scripts and deliver them in a specified time
frame...Then, have those scripts critiqued.
a monthly "challenge" of sorts? Then, those who participated could receive
suggestions on how their code could have been written differently.
kindly share those resources?
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Re: Fwd: Is this possible and should it be done?

Alan Gauld — 2012-05-21T17:24:39


No and you probably shouldn't.

If two users are accessing the same file at once and one of them is 
modifying it (writing) while the other is trying to read it bad things 
are very likely to happen. Remember that these virtual files inside the 
tar file(say) are really just blocks of data within a single file.

If you want to try modifying blocks inside a single store you will be 
better with a database. But that's not usually a single file (Access, 
SQLite etc excepted). Actually SQLite might do what you want by locking 
at the table row level, I haven't checked. You would need a single table 
of BLOB records where each BLOB represented a virtual file...

Version control tools like CVS and SVN don't quite fit your needs either 
since they use multiple files not a single file. Although they do 
usually store all the historic versions of each file in one. So if it is 
really only historic data you need CVS, SVN, RCS etc may work.

Re: While learning Py: To IDE or not to IDE?

2012-05-21T16:29:55

In my humble opinion, I think what is important is to get familiar with python for now. The free version of Komodo is what I have been using and its been cool. 

When you're comfortable with the language and you want to start writing some apps and all of that, you would be matured and independent enough to make a choice as to which editor to go with. 

Trust me, when you bury your head into writing amazing codes, the choice of editor would come almost naturally. 

All the best. 
Sent from my BlackBerry wireless device from MTN

-----Original Message-----
From: Brian van den Broek <brian.van.den.broek< at >gmail.com>
Sender: tutor-bounces+delegbede=dudupay.com< at >python.org
Date: Mon, 21 May 2012 18:17:01 
To: boB Stepp<robertvstepp< at >gmail.com>
Cc: <tutor< at >python.org>
Subject: Re: [Tutor] While learning Py: To IDE or not to IDE?

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______________

Re: While learning Py: To IDE or not to IDE?

Brian van den Broek — 2012-05-21T16:17:01

<snip>

learn
breed of
There
is one

<snip>


Hi boB,

If IDLE is working well for you, there's a good reason to stick with it.

I meant to address whether you ought build a stable of purpose-specific
IDEs or learn one editor to rule them all.

The advantage of emacs, as I see it, is that it provides general purpose
tools of high power for text-wrangling and the (non-trivial) time you have
to invest to learn to exploit that power yields fruit whenever you are
editing text. Emacs key bindings turn on all over the place, too; bash
shell supports a bunch, for instance.

It might be that editor plus language would be frustrating to try to learn
all at once, though.

Best,

Brian vdB
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Re: Datetime Integers

Walter Prins — 2012-05-21T16:09:55

Hi Jeremy,

On 21 May 2012 16:47, Jeremy Traurig <jeremy.traurig< at >gmail.com> wrote:

I presume you mean, "convert a datetime *string* into an array of integers"?

array of integers. For example, I have date where the first column is
Yes, Python datetime objects support that directly.  If d is a Python
datetime, then d.year gives you the year, d.month gives you the month
etc.   See here:  http://docs.python.org/library/datetime.html  Also see
8.1.7 regarding converting to and from datetime strings.

Walter
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Re: Datetime Integers

Joel Goldstick — 2012-05-21T16:06:19

On Mon, May 21, 2012 at 11:47 AM, Jeremy Traurig
<jeremy.traurig< at >gmail.com> wrote:

Yes, its called datetime


datetime.datetime(2010, 10, 10, 1, 10)

2010-10-10 01:10:00

I think there are Constants that can be used in place of the
formatting characters, but I couldn't find them in a quick search

Re: Is this possible and should it be done?

Emile van Sebille — 2012-05-21T16:05:59

On 5/21/2012 3:38 AM wolfrage8765< at >gmail.com said...

pyfuse allows you to create and represent whatever you want using python 
as a file system to the OS.  Probably worth a look...

Emile

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Re: Datetime Integers

Vince Spicer — 2012-05-21T16:04:31

This should do what you want.

import time
timestring = '2010-10-10 01:10:00'
time_format = '%Y-%m-%d %H:%M:%S'
timestruct = time.strptime(timestring, time_format)
print [x for x in timestruct]


For complex date parsing I would recommend checking out the dateutil.parser
http://labix.org/python-dateutil



On Mon, May 21, 2012 at 9:47 AM, Jeremy Traurig <jeremy.traurig< at >gmail.com>wrote:

Re: Coding Challenges

Chris Fuller — 2012-05-21T15:31:19

Project Euler is *very* math heavy (it is named after a famous mathematician, 
after all).  Some of the problems are accessible to the general programmer, 
but expect to see a lot of stuff you might not have much familiarity with, if 
you aren't a math nerd.

Another choice is The Python Challenge http://www.pythonchallenge.com/.  It 
emphasizes a puzzle/riddle aspect, often the actual programming is pretty 
straightforward once you figure out what is needed.  On the other hand, I 
haven't used it enough to progress all that far, so I really don't know it 
that well.

Cheers
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Datetime Integers

Jeremy Traurig — 2012-05-21T15:47:56

Hello,

Is there a module available for python to convert datetime into an
array of integers. For example, I have date where the first column is
a datetime string (i.e. '2010-10-10 01:10:00') and I would like to
convert that into an array with 5 columns corresponding to the integer
values of Year,Month,Day,Hour,Minute. There is a function in Matlab
that performs called datevec() that performs this operation. I find it
much easier to index datetime or perform calculations on other data
when date and time are integers. For example, i generally need to
calculate averages, std, etc based on specific months, years, days,
and hours. Those calculations are extremely simple when I can index an
array of datetime integers. If there is no module to convert datetime
to an array of integers, does anyone have an example of how i might
index datetime using python datetime or numpy datetime64? In each
case, I would need an array of datetime the same dimension as my data
array.

thanks -- jeremy
_____________________________

[OT] Re: While learning Py: To IDE or not to IDE?

Brian van den Broek — 2012-05-21T15:44:40

<snip>

*assume the answer in the question*, and it is a logical fallacy.
Notepad" is begging the question.

Steven,

I am a philospher of logic and mathematics. Everytime I encounter 'begs the
question' used in the way which you here resist, a little piece inside me
dies. Thanks for fighting the good fight!

However, as I hear this on the BBC and CBC Radio, and read it in
periodicals I think ought be edited by those who know better, I confess I
feel the worthy battle is lost.

As W.V.O. Quine said:

  We cannot stem the tide of linguistic
  change, but we can drag our feet.

Best,

Brian vdB
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Re: Coding Challenges

Martin A. Brown — 2012-05-21T15:14:13

Hello,

 : Being new to programming, I've found that my learning is 
 : accelerated when I've been asked to write scripts and deliver 
 : them in a specified time frame...Then, have those scripts 
 : critiqued.
 :
 : My question: Would the moderators of this list be interested in 
 : creating a monthly "challenge" of sorts? Then, those who 
 : participated could receive suggestions on how their code could 
 : have been written differently.
 : 
 : If not, and you know of something else like this that exists, 
 : would you kindly share those resources?

I'm answering a question slightly tangential to what you asked, in 
the time-honored tradition of asking a completely different 
question...

Are you familiar with Project Euler?

  http://projecteuler.net/
  http://projecteuler.net/problems

I don't know whether critique is involved in the Project Euler, 
though.  I would agree, having a concrete task to approach is a good 
way to learn.

Enjoy,

-Martin

Re: Coding Challenges

2012-05-21T14:52:40

On Mon, May 21, 2012 at 4:47 PM, Malcolm Newsome
<malcolm.newsome< at >gmail.com> wrote:

If they agree I am all for it, if not I would still like to know what
kind of plan that you come up with; as it will only make me better.
--
Jordan Farrell
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