Re: [Tutor] PYTHON 3.1
Sir, Under the handling files topic, trying to compile the addressbook example you gave, am I to put them all in one file and save as address book? or each is a different module is saved in different files? I have attached for your correction what I did, please let me know if it is wrong and then point out my mistakes. I'll have a look at that topic again and make sure I fix whatever correction you point out for me. Thank You. On 5/25/10, ALAN GAULD alan.ga...@btinternet.com wrote: OK, That means Python has not set up your PATH environment variable. This seems to be a common problem in recent releases, I think it is a bug but the Pyton developers disagree! :-) You need to follow the instructions in the box in the Getting Started topic. The test of whether it works is to go to the folder with your scripts in and just type python at the prompt. The usual prompt should appear. As to your attachment here are some explanations: C:\Documents and Settings\Administratorcd\C:\Python31\Project The filename, directory name, or volume label syntax is incorrect. You put the \ in front of the drive again. Also please type a space between the cd and the path, it makes it much easier to read! ie: cd C:\Python31\Project C:\Documents and Settings\Administratorcd\Python31\Project This worked because the folder is on the same drive as the prompt, ie C. C:\Python31\Projectvar.py Access is denied. This is odd. Can you try two things: 1) type dir var.* (dir for *dir*ectory listing) 2) assuming var.py is listed type attrib var.py Let me know what it says. C:\Python31\Projectpython var.py 'python' is not recognized as an internal or external command, operable program or batch file. This should have worked if the PATH environment was set up properly... C:\Python31\Projecttestingformat Access is denied. You need to specify the .py because Windows uses that to know what program to use to execute the file - if its been set up properly! C:\Python31\Projectpython testingformat 'python' is not recognized as an internal or external command, operable program or batch file. Again, even if PATH is fixed you would still neeed the .py extension C:\Python31\Projectcd\python31 C:\Python31python var.py this is a string.this string continues here. This worked so var.py is in your python31 folder Is there also a copy in the Projects folder? You should move your Projects folder somewhere else though. Because if you uninstall python 3.1 - for example when version 3.2 comes out - the uninstaller will delete python31 and everything under it - including your code! Alan Gauld Author of the Learn To Program website http://www.alan-g.me.uk/ From: Dipo Elegbede delegb...@dudupay.com To: ALAN GAULD alan.ga...@btinternet.com Sent: Tuesday, 25 May, 2010 9:06:39 Subject: Re: PYTHON 3.1 got back to what you adviced Sir. I did the cd to the file where the codes were saved and typed pythonthe code but it replied python wasnot recognised. I have attached the screen of the command prompt for you to see what i mean. Thanks for your time. On 5/24/10, Dipo Elegbede delegb...@dudupay.com wrote: I'll see to that again and do exactly as you have directed. Thanks and best regards, On 5/24/10, ALAN GAULD alan.ga...@btinternet.com wrote: OK, See my other email. You should keep your code files in a completely separate folder from Python so that if you ever upgrade Python you don't lose all your code! The trick is to CD into the folder you store your code not the folder where Python lives. Alan Gauld Author of the Learn To Program website http://www.alan-g.me.uk/ From: Dipo Elegbede delegb...@dudupay.com To: ALAN GAULD alan.ga...@btinternet.com Sent: Monday, 24 May, 2010 14:48:32 Subject: Re: PYTHON 3.1 Sir, I got it now. I moved all my codes to the python directory. I initially had another folder in the Python31 folder but now moved all to the Python31 folder and it's running well on the command prompt. Thanks. I'll go ahead to read stdin and stdout again and see what I can make of it. Regards, On 5/24/10, Dipo Elegbede delegb...@dudupay.com wrote: i have tried all that you advised, i still didn't run from the command prompt. Pls find attached the screen shot for various attempts I made. thanks. On 5/21/10, ALAN GAULD alan.ga...@btinternet.com wrote: I suspect the likely cause is that you need to change directory to the directory(folder) where your code lives. Lets say you keep your code in C:\Projects\Python start the DOS box Type (the bits in bold): C\:..\ cd C:\Projects\Python Now type C:\Projects\Pythonpython myprogram.py using whatever your python file is called... Now, provided everything is set up properly it should run. In fact you might even get away wioth jusdt typing: C:\Projects\Python\ myprogram.py Because in theory Windows should
Re: [Tutor] PYTHON 3.1
greetings and welcome (back) to Python! i have a few comments for you: 1. The syntax for Python 3.x has changed from 2.x, so please be aware of the differences as you are learning. Most books and code out there is still 2.x. 3.x is being adopted but because of the differences, it is slower than most version upgrades. also, 2.x is still going to be current for awhile... it has not been obsoleted yet. 2. Are you in Nigeria? if so, you may wish to attend the Nigerian stop of the Python Africa Tour: http://www.coactivate.org/projects/python-african-tour/blog/2010/04/26/preparing-our-3rd-stop-nigeria/ 3. Absolute Beginner CD: you asked for it last year -- http://www.nairaland.com/nigeria/topic-176782.64.html#msg3450555 -- but i guess no one has sent one to you yet? anyway, that edition is only for Python 2. there is now a 3rd edition that is in Python 3. you should be able to order it from your local technical bookstore, or you can buy it from Amazon... they ship to Africa. here is the link to the new edition: http://amazon.com/dp/1435455002 4. Put your reply to my email on the bottom and not on the top. I know it's not easy because you are on a mobile, but it makes things easier to read. Yes, it is the opposite way of doing it from regular business email. best regards, -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Core Python Programming, Prentice Hall, (c)2007,2001 Python Fundamentals, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
Hello Sir,
I'm trying to write a program that checks for the square root of any
number input by the User.
It's a fairly simple coding though atleast for an ambitious beginner.
I want the code to first, calculate the square root and the tell the
user whether or not.
It should end up telling the User that this is a perfect square.
Below is the coding:
print('Check for a perfect square')
number = int(input('Which number are you checking for? '))
square = (number)**(1/2.0)
print('Square Root is = %.2f'%(square))
I am trying to put in something like:
if square (is perfect square):
print ('This is a perfect square')
Pls Help.
Thanks.
On 5/21/10, ALAN GAULD alan.ga...@btinternet.com wrote:
I suspect the likely cause is that you need to change directory to the
directory(folder) where your code lives. Lets say you keep your code
in C:\Projects\Python
start the DOS box
Type (the bits in bold):
C\:..\ cd C:\Projects\Python
Now type
C:\Projects\Pythonpython myprogram.py
using whatever your python file is called...
Now, provided everything is set up properly it should run.
In fact you might even get away wioth jusdt typing:
C:\Projects\Python\ myprogram.py
Because in theory Windows should know to run python
for a .py file But it often forgets :-(
Alan Gauld
Author of the Learn To Program website
http://www.alan-g.me.uk/
From: Dipo Elegbede delegb...@dudupay.com
To: ALAN GAULD alan.ga...@btinternet.com
Sent: Friday, 21 May, 2010 19:35:57
Subject: Re: PYTHON 3.1
I still can not successfully run Python from the windows command
prompt after doing all you've directed in the tutorials. (Pls note,
I'm not ruling out the probability that I didn't get the instructions
right. As a matter of fact, this is possibly why I still have the
problem.)
Sir, I'm hoping you could take me through that again.
Like when I type
C:document and settingpython xx.py
It tells me the file does not exit.
It atimes starts python when I type python at the prompt to give:
C:Python
When i type the name of the file at the python prompt, I still get an
error.e.g
Pythonread.py
It comes with error.
It's challenging because some examples in your tutorial require I run
from the prompt and so I'm getting stucked midway.
Please Help.
Regards,
On 5/21/10, Dipo Elegbede delegb...@dudupay.com wrote:
Hi Alan Sir,
I have been reading through your site and the tutorials, it's just
something else, I started feeling like a real programmer when i worked
through the easygui thingy, it was really a mind-blower.
I hope you'll pardon my pace of learning. I still didn't get some
aspect under 'Conversing with the user'
i really read through and I am hoping to reread but I would like you
shed more light on the stdin and stdout areas.
They are really confusing.
Please help.
Regards,
On 5/20/10, Dipo Elegbede delegb...@dudupay.com wrote:
Ok, Master. I should would have a lot to learn from you.
I hope you'd oblige me that rare priviledge.
Regards, Master!
On 5/20/10, ALAN GAULD alan.ga...@btinternet.com wrote:
I may consider pascal after excelling in Python.
I wouldn't bother, the only place it is used nowadays is in the
Borland Delphi programming tool for Windows(*). Delphi is very
good if you already know Pascal but otherwise is just another
language to learn! :-)
(*)Although there is a freeware version of Pascal - fpc - that is
compatible with Delphi if you really want to try it out. But
definitely wait till after Python. (Actually Python is a good
intro to Delphi, they have many features in common)
Alan G.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Sent from my mobile device
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
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Re: [Tutor] PYTHON 3.1
Well, I'd use the raw_input function instead of the input function.
and I'd check out the math.floor function as well. :-)
Lemme know if you have any other questions.
--
I enjoy haiku
but sometimes they don't make sense;
refrigerator?
On Mon, May 24, 2010 at 1:55 AM, Dipo Elegbede delegb...@dudupay.comwrote:
Hello Sir,
I'm trying to write a program that checks for the square root of any
number input by the User.
It's a fairly simple coding though atleast for an ambitious beginner.
I want the code to first, calculate the square root and the tell the
user whether or not.
It should end up telling the User that this is a perfect square.
Below is the coding:
print('Check for a perfect square')
number = int(input('Which number are you checking for? '))
square = (number)**(1/2.0)
print('Square Root is = %.2f'%(square))
I am trying to put in something like:
if square (is perfect square):
print ('This is a perfect square')
Pls Help.
Thanks.
On 5/21/10, ALAN GAULD alan.ga...@btinternet.com wrote:
I suspect the likely cause is that you need to change directory to the
directory(folder) where your code lives. Lets say you keep your code
in C:\Projects\Python
start the DOS box
Type (the bits in bold):
C\:..\ cd C:\Projects\Python
Now type
C:\Projects\Pythonpython myprogram.py
using whatever your python file is called...
Now, provided everything is set up properly it should run.
In fact you might even get away wioth jusdt typing:
C:\Projects\Python\ myprogram.py
Because in theory Windows should know to run python
for a .py file But it often forgets :-(
Alan Gauld
Author of the Learn To Program website
http://www.alan-g.me.uk/
From: Dipo Elegbede delegb...@dudupay.com
To: ALAN GAULD alan.ga...@btinternet.com
Sent: Friday, 21 May, 2010 19:35:57
Subject: Re: PYTHON 3.1
I still can not successfully run Python from the windows command
prompt after doing all you've directed in the tutorials. (Pls note,
I'm not ruling out the probability that I didn't get the instructions
right. As a matter of fact, this is possibly why I still have the
problem.)
Sir, I'm hoping you could take me through that again.
Like when I type
C:document and settingpython xx.py
It tells me the file does not exit.
It atimes starts python when I type python at the prompt to give:
C:Python
When i type the name of the file at the python prompt, I still get an
error.e.g
Pythonread.py
It comes with error.
It's challenging because some examples in your tutorial require I run
from the prompt and so I'm getting stucked midway.
Please Help.
Regards,
On 5/21/10, Dipo Elegbede delegb...@dudupay.com wrote:
Hi Alan Sir,
I have been reading through your site and the tutorials, it's just
something else, I started feeling like a real programmer when i worked
through the easygui thingy, it was really a mind-blower.
I hope you'll pardon my pace of learning. I still didn't get some
aspect under 'Conversing with the user'
i really read through and I am hoping to reread but I would like you
shed more light on the stdin and stdout areas.
They are really confusing.
Please help.
Regards,
On 5/20/10, Dipo Elegbede delegb...@dudupay.com wrote:
Ok, Master. I should would have a lot to learn from you.
I hope you'd oblige me that rare priviledge.
Regards, Master!
On 5/20/10, ALAN GAULD alan.ga...@btinternet.com wrote:
I may consider pascal after excelling in Python.
I wouldn't bother, the only place it is used nowadays is in the
Borland Delphi programming tool for Windows(*). Delphi is very
good if you already know Pascal but otherwise is just another
language to learn! :-)
(*)Although there is a freeware version of Pascal - fpc - that is
compatible with Delphi if you really want to try it out. But
definitely wait till after Python. (Actually Python is a good
intro to Delphi, they have many features in common)
Alan G.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Sent from my mobile device
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
___
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Re: [Tutor] PYTHON 3.1
Well, I'd use the raw_input function instead of the input function. input is raw_input in Python 3.1. raw_input doesn't exist. Alan G. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
On 24 May 2010 09:20, Matthew Wood woodm1...@gmail.com wrote: Well, I'd use the raw_input function instead of the input function. and I'd check out the math.floor function as well. :-) Lemme know if you have any other questions. -- I enjoy haiku but sometimes they don't make sense; refrigerator? raw_input has been renamed to input in python 3.0. To get the old input behaviour you have to use eval. Great sig, btw. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
Well, what do you know! Turns out, I never use that function anyway, so it won't change a damn thing for me. But thanks for the heads up! And thanks for the nod to the haiku. So many people don't see it. -- I enjoy haiku but sometimes they don't make sense; refrigerator? On Mon, May 24, 2010 at 3:36 AM, C M Caine cmca...@googlemail.com wrote: On 24 May 2010 09:20, Matthew Wood woodm1...@gmail.com wrote: Well, I'd use the raw_input function instead of the input function. and I'd check out the math.floor function as well. :-) Lemme know if you have any other questions. -- I enjoy haiku but sometimes they don't make sense; refrigerator? raw_input has been renamed to input in python 3.0. To get the old input behaviour you have to use eval. Great sig, btw. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
Thanks Alan, I'm on it. Regards. On 5/18/10, Alan Gauld alan.ga...@btinternet.com wrote: Dipo Elegbede delegb...@dudupay.com wrote please confirm this is a new syntax for print. thank you. i will put up morte concerns as they arrive. Please read the Whats New in Python v3 documents first. Version 3 of Python is a major change in the language with many big changes. Do not just try stuff and send it here every time something breaks. Read the documents first so you know what to expect. -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
Hi Alan. I was looking through your page http://www.alan-g.me.uk/l2p/index.htm; Covering the topic: Looping - Or the art of repeating oneself! Under for loop, Note 3: ...*You can prove that by typing print( list( range(1,13) )*.. The print statement above seem to be incomplete, I think a single parenthesis is missing. it should be six in all. Please confirm and effect the correction on the web page. Thanks. On 5/19/10, Dipo Elegbede delegb...@dudupay.com wrote: Thanks Alan, I'm on it. Regards. On 5/18/10, Alan Gauld alan.ga...@btinternet.com wrote: Dipo Elegbede delegb...@dudupay.com wrote please confirm this is a new syntax for print. thank you. i will put up morte concerns as they arrive. Please read the Whats New in Python v3 documents first. Version 3 of Python is a major change in the language with many big changes. Do not just try stuff and send it here every time something breaks. Read the documents first so you know what to expect. -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] PYTHON 3.1
Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit (Intel)]
on win32
Type copyright, credits or license() for more information.
print 'hello'
SyntaxError: invalid syntax (pyshell#0, line 1)
print ('hello')
hello
the above print is what i came across having installed python 3.0 and trying
to run the print command.
with previous versions, a print command takes the form
print 'parameter'
and the output is
parameter
but with this new version it seems you need to put in brackets like:
print ('hello')
to get an output like:
hello
please confirm this is a new syntax for print.
thank you.
i will put up morte concerns as they arrive.
thanks.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise Application
Development
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Re: [Tutor] PYTHON 3.1
On Tue, May 18, 2010 at 8:40 AM, Dipo Elegbede delegb...@dudupay.comwrote:
Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type copyright, credits or license() for more information.
print 'hello'
SyntaxError: invalid syntax (pyshell#0, line 1)
print ('hello')
hello
the above print is what i came across having installed python 3.0 and
trying to run the print command.
with previous versions, a print command takes the form
print 'parameter'
and the output is
parameter
but with this new version it seems you need to put in brackets like:
print ('hello')
to get an output like:
hello
please confirm this is a new syntax for print.
thank you.
i will put up morte concerns as they arrive.
thanks.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise Application
Development
___
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In python 3K print is a function.
So, print('hello, world') is the correct syntax.
You may find this article helpful:
http://docs.python.org/py3k/whatsnew/3.0.html
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Re: [Tutor] PYTHON 3.1
Dipo Elegbede wrote:
Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type copyright, credits or license() for more information.
print 'hello'
SyntaxError: invalid syntax (pyshell#0, line 1)
print ('hello')
hello
the above print is what i came across having installed python 3.0 and
trying to run the print command.
with previous versions, a print command takes the form
print 'parameter'
and the output is
parameter
but with this new version it seems you need to put in brackets like:
print ('hello')
to get an output like:
hello
please confirm this is a new syntax for print.
thank you.
i will put up morte concerns as they arrive.
thanks.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com http://www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise
Application Development
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The Python 3.x series changed the print statement to a print function.
--
Kind Regards,
Christian Witts
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Re: [Tutor] PYTHON 3.1
thanks a lot.
i was almost going to abandon this python again out of frustration. i have
done it before but with you guys around, it would never happen again.
i have a pdf version of python programming for absolute beginners, could
anyone please help me with its accompaning CD content?
thanks as i anticipate responses.
regards.
On Tue, May 18, 2010 at 2:02 PM, James Reynolds eire1...@gmail.com wrote:
On Tue, May 18, 2010 at 8:40 AM, Dipo Elegbede delegb...@dudupay.comwrote:
Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type copyright, credits or license() for more information.
print 'hello'
SyntaxError: invalid syntax (pyshell#0, line 1)
print ('hello')
hello
the above print is what i came across having installed python 3.0 and
trying to run the print command.
with previous versions, a print command takes the form
print 'parameter'
and the output is
parameter
but with this new version it seems you need to put in brackets like:
print ('hello')
to get an output like:
hello
please confirm this is a new syntax for print.
thank you.
i will put up morte concerns as they arrive.
thanks.
--
Elegbede Muhammed Oladipupo
OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise Application
Development
___
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In python 3K print is a function.
So, print('hello, world') is the correct syntax.
You may find this article helpful:
http://docs.python.org/py3k/whatsnew/3.0.html
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OCA
+2348077682428
+2347042171716
www.dudupay.com
Mobile Banking Solutions | Transaction Processing | Enterprise Application
Development
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Re: [Tutor] PYTHON 3.1
(Please don't top-post. Add your comments to the end of the portion you're quoting.) Dipo Elegbede wrote: thanks a lot. i was almost going to abandon this python again out of frustration. i have done it before but with you guys around, it would never happen again. i have a pdf version of python programming for absolute beginners, could anyone please help me with its accompaning CD content? thanks as i anticipate responses. regards. I don't know the version that your CD was written for. If you're going to use a tutorial, it's smart to get a matching version of Python. So if your tutorial is for 2.x, you should get Python 2.6 (or soon, 2.7). Otherwise, you'll be frequently frustrated by the differences. They're not that bad, once you know the language. But while you're learning, try to match your learning materials with your version. DaveA ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
I AM CURRENTLY LEARNING WITH PYTHON 3.0 just about now, you are all blowing my minds. this is great. On Tue, May 18, 2010 at 2:49 PM, Dave Angel da...@ieee.org wrote: (Please don't top-post. Add your comments to the end of the portion you're quoting.) Dipo Elegbede wrote: thanks a lot. i was almost going to abandon this python again out of frustration. i have done it before but with you guys around, it would never happen again. i have a pdf version of python programming for absolute beginners, could anyone please help me with its accompaning CD content? thanks as i anticipate responses. regards. I don't know the version that your CD was written for. If you're going to use a tutorial, it's smart to get a matching version of Python. So if your tutorial is for 2.x, you should get Python 2.6 (or soon, 2.7). Otherwise, you'll be frequently frustrated by the differences. They're not that bad, once you know the language. But while you're learning, try to match your learning materials with your version. DaveA -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
That's a good one Sir, i started out with 2.x series but left it for a while. Coming back now, i'm getting on well just for this few changes but I think with a forum like this, I'd fare well in this pythonic journey. Thanks. On Tue, May 18, 2010 at 2:56 PM, Walter Prins wpr...@gmail.com wrote: IMHO: If you're new to Python and just trying to learn the language, I'd suggest sticking to Python 2.x for now, as the vast majority of Python material out there still use and refer to Python 2.x syntax. IMHO it'll be a lot easier learning and coping with what's changed in Python 3 only once you are already comfortable with Python 2.x syntax, rather than trying to use materials and books referencing 2.x on 3.x and then consequently running into unexpected issues as above, and never being sure whether issues you run into is due to some mistake on your part or a difference between 2.x and 3.x. -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
On Tue, 18 May 2010 14:53:45 +0100 Dipo Elegbede delegb...@dudupay.com wrote: I AM CURRENTLY LEARNING WITH PYTHON 3.0 just about now, you are all blowing my minds. this is great. Please don't write your replies on top. Write them instead just after the part(s) of the message you're replying to; and delete the rest. By doing so, you help keeping the flow of the discussion; else, everything gets messed up after 2-3 replies. Denis vit esse estrany ☣ spir.wikidot.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
Dipo Elegbede delegb...@dudupay.com wrote please confirm this is a new syntax for print. thank you. i will put up morte concerns as they arrive. Please read the Whats New in Python v3 documents first. Version 3 of Python is a major change in the language with many big changes. Do not just try stuff and send it here every time something breaks. Read the documents first so you know what to expect. -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PYTHON 3.1
ok On 5/18/10, spir ☣ denis.s...@gmail.com wrote: On Tue, 18 May 2010 14:53:45 +0100 Dipo Elegbede delegb...@dudupay.com wrote: I AM CURRENTLY LEARNING WITH PYTHON 3.0 just about now, you are all blowing my minds. this is great. Please don't write your replies on top. Write them instead just after the part(s) of the message you're replying to; and delete the rest. By doing so, you help keeping the flow of the discussion; else, everything gets messed up after 2-3 replies. Denis vit esse estrany ☣ spir.wikidot.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- Elegbede Muhammed Oladipupo OCA +2348077682428 +2347042171716 www.dudupay.com Mobile Banking Solutions | Transaction Processing | Enterprise Application Development ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Python 3.1: How to print a very large number to n significant digits?
Can't find the answer in the docs for 3.1 To print 123**34.6 to 5 sig digits, print(%.*e % (4, 123**34.6)) will do the job: print(%.*e % (4, 123**34.6)) 2.0451e+72 However, if the number is 123**346, using print(%.*e % (4, 123**346)) gets me print(%.*e % (5, 123**346)) Traceback (most recent call last): File pyshell#28, line 1, in module print(%.*e % (5, 123**346)) OverflowError: Python int too large to convert to C double So how to do it? Thanks, Dick Moores ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python 3.1: How to print a very large number to n significant digits?
On Mon, Nov 23, 2009 at 12:28 PM, Richard D. Moores rdmoo...@gmail.comwrote: Can't find the answer in the docs for 3.1 To print 123**34.6 to 5 sig digits, print(%.*e % (4, 123**34.6)) will do the job: print(%.*e % (4, 123**34.6)) 2.0451e+72 However, if the number is 123**346, using print(%.*e % (4, 123**346)) gets me print(%.*e % (5, 123**346)) Traceback (most recent call last): File pyshell#28, line 1, in module print(%.*e % (5, 123**346)) OverflowError: Python int too large to convert to C double Try the decimal module: http://docs.python.org/library/decimal.html HTH, Wayne ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python 3.1: How to print a very large number to n significant digits?
On Mon, Nov 23, 2009 at 12:23, Wayne Werner waynejwer...@gmail.com wrote:
On Mon, Nov 23, 2009 at 12:28 PM, Richard D. Moores rdmoo...@gmail.com
wrote:
Can't find the answer in the docs for 3.1
To print 123**34.6 to 5 sig digits,
print(%.*e % (4, 123**34.6))
will do the job:
print(%.*e % (4, 123**34.6))
2.0451e+72
However, if the number is 123**346, using
print(%.*e % (4, 123**346))
gets me
print(%.*e % (5, 123**346))
Traceback (most recent call last):
File pyshell#28, line 1, in module
print(%.*e % (5, 123**346))
OverflowError: Python int too large to convert to C double
Try the decimal module:
http://docs.python.org/library/decimal.html
HTH,
Wayne
Yes, I just found this function in my collection of functions. I
believe I wrote this one myself, but I can't remember for sure:
===
def numberRounding(n, significantDigits):
Rounds a string in the form of a string number
(float or integer, negative or positive) to any number of
significant digits. If an integer, there is no limitation on it's size.
Safer to always have n be a string.
import decimal
def d(x):
return decimal.Decimal(str(x))
decimal.getcontext().prec = significantDigits
s = str(d(n)/1)
s = s.lstrip('0')
return s
===
numberRounding(123**346,5)
'1.2799E+723'
numberRounding(123**34.6,5)
'2.0451E+72'
numberRounding(12345**6789,3)
'1.36E+2'
numberRounding(3.4**-12.9,6)
'1.39291E-7'
Dick
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