Re: [Tutor] Tutor Digest, Vol 117, Issue 28
;
> caosa8feqwpekkyof9u69niur8dut-kj-2fkxdl0kyhtp2-h...@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> def main():
>
> goal, apr, deposit = getSavingsDetails()
> determineMonthsTilSaved( goal, apr, deposit )
>
> months = determineMonthsTilSaved(goal, apr, deposit)
>
> summarize( months )
>
> def getSavingsDetails():
> """
> goal = float( input( "Principal sought? $" ) )
> apr = float( input( "Interest rate? " ) )
> deposit = float( input( "Deposit? $" ) )
> """
> goal = 1000.0
> apr = .05
> deposit = 100
> return goal, apr, deposit
>
> def determineMonthsTilSaved( goal, apr, deposit ):
> months = 0
> saved = 0
> totalInterest = 0.0
>
>
>
>
> while saved < goal:
> interest = saved * apr / 12
> totalInterest += interest
> saved += (deposit + interest)
> months += 1
> print( months, ("%.2f" % saved), ("%.2f" % totalInterest) )
>
> return months
>
> def summarize( months ):
> print( "Saved! It took ", months // 12, "years and", months % 12,
> "months." )
>
> main()
>
>
> When this is run it appears that determineMonthsTilSaved is running twice
> before the loop ends. It is supposed to run until saved > than goal, but
> look at the output. It runs again even after saved > goal. Help please?
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> Subject: Digest Footer
>
> ___
> Tutor maillist - Tutor@python.org
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>
>
> --
>
> End of Tutor Digest, Vol 117, Issue 28
> **
>
--
Warm regards.
Satheesan Varier
860 (970) 2732
___
Tutor maillist - Tutor@python.org
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Re: [Tutor] Tutor Digest, Vol 117, Issue 32 ( Subject: Phython List values )
Message: 7
Date: Mon, 18 Nov 2013 06:57:20 -
From: "Ayo Rotibi"
To:
Subject: [Tutor] Phython List values
Message-ID: <002901cee42b$6e346fe0$4a9d4fa0$@com>
Content-Type: text/plain; charset="us-ascii"
Hi,
I am a complete newbie to python.
I read that an assignment with an = on lists does not make a copy. Instead,
assignment makes the two variables point to the one list in memory. For
instance, if a = [1, 2, 3] and b=a, then b = [1, 2, 3].
However, I discovered that if I change the value in 'a', 'b' does not take
the new value. I thought since it is pointing to the same storage as 'a',
'b' should take the new value.
Any explanation would be appreciated.
Dear Ayo :: You should look at the order of execution:
>>> a=['a','b','c']
>>> b=a
>>> b.append('d')
>>> a
['a', 'b', 'c', 'd']
In your third step you reassigned b=['a','b','c']
Best wishes !
_
Desire, Dedication, Determination
and a little bit of Talent
On Mon, Nov 18, 2013 at 5:35 AM, wrote:
> Send Tutor mailing list submissions to
> tutor@python.org
>
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> https://mail.python.org/mailman/listinfo/tutor
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> tutor-requ...@python.org
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Tutor digest..."
>
>
> Today's Topics:
>
>1. Call Attribute error - Was Re: Tutor Digest, Vol 117,Issue
> 28 (Alan Gauld)
>2. Re: Link required for difference between class and object
> (Joel Goldstick)
>3. Re: Link required for difference between class and object
> (Mark Lawrence)
>4. Re: basic function concept (Alex Kleider)
>5. Re: basic function concept (Alex Kleider)
>6. Re: Link required for difference between class and object
> (Alan Gauld)
>7. Phython List values (Ayo Rotibi)
>
>
> ----------
>
> Message: 1
> Date: Sun, 17 Nov 2013 15:23:06 +
> From: Alan Gauld
> To: tutor@python.org
> Subject: [Tutor] Call Attribute error - Was Re: Tutor Digest, Vol
> 117,Issue 28
> Message-ID:
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 17/11/13 12:19, Satheesan Varier wrote:
> > class myclass():
> > def test(self):
> > print "print this line"
> >
> > if __name__ == '__main__':
> >myclass.run()
> >
> > You can do the test run with an instance of that class, as follows:
> >
> > >>> k=myclass()
> >
> > >>> myclass.test(k)
> > print this line
>
> Or more conventionally
>
> k.test()
>
> Please don't post the entire digest when replying, remove any irrelevant
> material. Some people pay by the byte and don't
> want to pay for stuff they've already seen.
>
>
> --
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.flickr.com/photos/alangauldphotos
>
>
>
> --
>
> Message: 2
> Date: Sun, 17 Nov 2013 10:29:48 -0500
> From: Joel Goldstick
> To: Reuben
> Cc: "tutor@python.org"
> Subject: Re: [Tutor] Link required for difference between class and
> object
> Message-ID:
> <
> capm-o+xxzuie_us8rj3txn2vu-fzi__3obsjcwgybdsqete...@mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> On Sun, Nov 17, 2013 at 7:24 AM, Reuben wrote:
> > Hi All,
> >
> > It would be nice if someone could forward a link which explains classes
> and
> > object.
> > I am still struggling to understand classes and objects better.
> >
> > Regards,
> > Reuben
> >
> > ___
> > Tutor maillist - Tutor@python.org
> > To unsubscribe or change subscription options:
> > https://mail.python.org/mailman/listinfo/tutor
> >
>
> Have you looked here yet? http://docs.python.org/2/tutorial/classes.html
>
> --
> Joel Goldstick
> http://joelgoldstick.com
>
>
> --
>
> Message: 3
> Date: Sun, 17 Nov 2013 15:53:49 +
> From: Mark Lawrence
> To: tutor@python.org
> Subject: Re: [Tutor] Link required for difference
Re: [Tutor] Tutor Digest, Vol 117, Issue 33[ Re: Ideas ? ]
Need a little help with finding a process for this: when a string of text is input, for example: abc def. I want to have each letter shift to the right one place in the alphabet. Thus.. abc def would be output as bcd efg. Any ideas on how to do this? - if you do not want to use the translate: >>> s='abcdef ghijk lmn' >>> k='' >>> for char in s: if char!=' ': k+=str(chr(ord(char)+1)) else: k+=' ' >>> k 'bcdefg hijkl mno' -- If you want to use translate: >>> from string import maketrans >>> your_alphabets = 'abcdefghijklmnopurstuvwzyz' >>> my_alphabets='bcdefghijklmnopqystuvwxyza' >>> s='Let us Test Your language !' >>> s.translate(maketrans(your_alphabets, my_alphabets)) 'Lfu vt Tftu Ypvs mbohvbhf !' Note: my_alphabets to fine tune __ On Mon, Nov 18, 2013 at 6:00 AM, wrote: > Send Tutor mailing list submissions to > tutor@python.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.python.org/mailman/listinfo/tutor > or, via email, send a message with subject or body 'help' to > tutor-requ...@python.org > > You can reach the person managing the list at > tutor-ow...@python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Tutor digest..." > > > Today's Topics: > >1. ideas? (Byron Ruffin) >2. Re: Phython List values :p: (Paradox) > > > -- > > Message: 1 > Date: Sun, 17 Nov 2013 21:27:56 -0600 > From: Byron Ruffin > To: tutor@python.org > Subject: [Tutor] ideas? > Message-ID: > kojukeyg+c...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Need a little help with finding a process for this: > > when a string of text is input, for example: abc def. > I want to have each letter shift to the right one place in the alphabet. > Thus.. > abc def would be output as bcd efg. > > Any ideas on how to do this? > -- next part -- > An HTML attachment was scrubbed... > URL: < > http://mail.python.org/pipermail/tutor/attachments/20131117/56728ee8/attachment-0001.html > > > > -- > > Message: 2 > Date: Mon, 18 Nov 2013 05:49:06 -0500 > From: Paradox > To: tutor@python.org > Subject: Re: [Tutor] Phython List values :p: > Message-ID: <5289f0a2.3010...@pobox.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > Ayo, > > On 11/18/2013 01:57 AM, Ayo Rotibi wrote: > > > > > > I read that an assignment with an = on lists does not make a copy. > > Instead, assignment makes the two variables point to the one list in > > memory. For instance, if a = [1, 2, 3] and b=a, then b = [1, 2, 3]. > > > > However, I discovered that if I change the value in ?a?, ?b? does not > > take the new value. I thought since it is pointing to the same > > storage as ?a?, ?b? should take the new value? > > > > > It is not clear to me what code you are running, maybe you could give us > the specifics? When I run an assignment like you seem to be talking > about I get the expected result (using ipython for an interactive > session to demonstrate): > > In [1]: a=[1,2,3] > > In [2]: b=a > > In [3]: b > Out[3]: [1, 2, 3] > > In [4]: a[1]=0 > > In [5]: a > Out[5]: [1, 0, 3] > > In [6]: b > Out[6]: [1, 0, 3] > > Is that not what you are seeing? If not perhaps you could show us how > you are doing the list assignment and changing the list a, what output > you are expecting and what output you are getting. > > thomas > > > -- > > Subject: Digest Footer > > ___ > Tutor maillist - Tutor@python.org > https://mail.python.org/mailman/listinfo/tutor > > > -- > > End of Tutor Digest, Vol 117, Issue 33 > ** > -- Warm regards. Satheesan Varier 860 (970) 2732 ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] raw input program is still running.
table, a second line with the total number of rows (atoms) in the table
> > followed by a line with the ordered string of chemical symbols separated
> > by a silgle space.
> >
> > My aim is load the numerical data from this file to a c++ program to
> > process this information.
> >
> > Thanks in advance.
> >
> > -Ruben.
> >
>
> I'm sorry but we don't write code for you here. I suggest that you
> start out by reading the tutorial here
> http://docs.python.org/3/tutorial/index.html, try writing something and
> when and if you run into problems please feel free to get back to us.
>
> --
> Python is the second best programming language in the world.
> But the best has yet to be invented. Christian Tismer
>
> Mark Lawrence
>
>
>
> --
>
> Message: 6
> Date: Sat, 23 Nov 2013 03:19:46 +0200
> From: Davnobezimeni Sasha Balagura
> To: tutor@python.org
> Subject: [Tutor] Using tkinter::ttk::treeview to implement data view.
> Message-ID:
> <
> caa7ixku8_kd9wsn+8xfqrfu9yhdmobgq1kxasn7fhxpt5ic...@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello.
> I have to implement parcer for .txt file with special formating. There are
> a lot of data to display, modify, add. I decided to use
> tkinter::ttk:treeviev for this. And it really good one, very fast and good
> looking..but..
> But I cant set borders between cells, like in Excel. Is it real at all for
> this widget? Or i've just overlooked something?
>
> Best regards,
> Alex
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> Message: 7
> Date: Fri, 22 Nov 2013 16:08:25 -0600
> From: Paul Steele
> To: tutor@python.org
> Subject: [Tutor] numrows returning -1
> Message-ID:
> <
> cald6m00nu1usqd0oderb4sqtpwidinqrzwwxn15uudptax4...@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hey all...
>
> I am getting a numrows count of -1 when I print numrows (see line 23 of the
> code). What does "-1" mean?I think my connection is working and my
> table has data.
>
> Here's my code...
>
> #!/usr/bin/python
> # -*- coding: utf-8 -*-
>
> import mysql.connector
> from mysql.connector import errorcode
>
> try:
> con = mysql.connector.connect(user='root', password='pw848596',
> host='127.0.0.1',
> database='mydb')
> except mysql.connector.Error as err:
> if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
> print("Something is wrong with your user name or password")
> elif err.errno == errorcode.ER_BAD_DB_ERROR:
> print("Database does not exists")
> else:
> print(err)
> else:
> cur=con.cursor()
>
> cur.execute("select Name from Rosters")
> numrows = cur.rowcount
> print numrows
> for x in xrange(0,numrows):
> row = cursor.fetchone()
> print "Name"
>
> con.close()
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>
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>
> --
>
> End of Tutor Digest, Vol 117, Issue 44
> **
>
--
Warm regards.
Satheesan Varier
860 (970) 2732
___
Tutor maillist - Tutor@python.org
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