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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">For those using Python it might be a little difficult to show a ‘record’ type, as there isn’t really one. The usual answer is to create a class and use it as
a record type. In python, a class without methods only attributes is the common way to represent a struct or record type from other languages.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">However, if you are using Python 3.3 or greater you can use the SimpleNamespace type from the types module which is pretty close to a record type and is built
in. Otherwise you could look into namedtuples. For reference:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="https://www.daniweb.com/programming/software-development/code/216597/class-implements-a-structurerecord-python">https://www.daniweb.com/programming/software-development/code/216597/class-implements-a-structurerecord-python</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="http://stackoverflow.com/questions/5227839/why-python-does-not-support-record-type-i-e-mutable-namedtuple">http://stackoverflow.com/questions/5227839/why-python-does-not-support-record-type-i-e-mutable-namedtuple</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">You might need to spend time comparing python’s lack of record types with other languages to get the idea across if your students are used to the python way of
using variables. It would be difficult, for example, to limit a python object to a fixed number of attributes without creating a class to represent a record.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I am not sure if it would be accepted that a class and a record can be the same thing?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Guy Flaherty<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au]
<b>On Behalf Of </b>Chris Bucknell<br>
<b>Sent:</b> Friday, 26 February 2016 12:15 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <sofdev@edulists.com.au><br>
<b>Subject:</b> Re: [Year 12 SofDev] Records VS Classes<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">Hi Ben,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">That is the way that I read it also. I think the context of the dot point containing the identification of records and its elaboration
in brackets – varying data types, field index – means that it must be a user defined data structure (i.e structs – C, structures – VB or records – pascal)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">So to expand (with thanks to Wikipedia
</span><a href="https://en.wikipedia.org/wiki/Record_(computer_science)"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">https://en.wikipedia.org/wiki/Record_(computer_science)</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">
)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol;color:black;mso-fareast-language:EN-US"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">A record is a collection of fields/elements, possibly of different data types, typically in fixed number and sequence.
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol;color:black;mso-fareast-language:EN-US"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">Records are distinguished from arrays by the fact that their number of fields is typically fixed, each field has a name, and
that each field may have a different type.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">Just my two cents worth.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#80004D">Chris Bucknell</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#515964">Head of CDT; Coord, Internal Exam; House Tutor</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Calibri",sans-serif;color:#515964">+61 3 9904 6360</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:%7bemail%7d"><span lang="EN-US" style="font-size:8.0pt;font-family:"Calibri",sans-serif">Chris.Bucknell@haileybury.vic.edu.au</span></a><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><a href="http://www.haileybury.vic.edu.au"><span lang="EN-US" style="font-size:8.0pt;font-family:"Calibri",sans-serif">www.haileybury.vic.edu.au</span></a><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black"><br>
<br>
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<a href="mailto:sofdev-bounces@edulists.com.au">sofdev-bounces@edulists.com.au</a> [<a href="mailto:sofdev-bounces@edulists.com.au">mailto:sofdev-bounces@edulists.com.au</a>]
<b>On Behalf Of </b>Baas, Benjamin B<br>
<b>Sent:</b> Friday, 26 February 2016 7:53 AM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List<br>
<b>Subject:</b> Re: [Year 12 SofDev] Records VS Classes<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The study design mentions records under the dot point referring to data structures. To me that sounds like they want to us to look
at records with in the programming language. In the case of the C languages and VB struts or structures. That’s my interpretation. I might ask Paula.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4;text-autospace:none">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:HelveticaNeueLT-Light">types of data structures, including one-dimensional arrays (single data type, integer index) and records (varying data types, field index)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Ben.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><a href="mailto:sofdev-bounces@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev-bounces@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> [</span><a href="mailto:sofdev-bounces@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">mailto:sofdev-bounces@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">]
<b>On Behalf Of </b>Paragreen, Chris J<br>
<b>Sent:</b> Thursday, 25 February 2016 3:40 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <</span><a href="mailto:sofdev@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Subject:</b> Re: [Year 12 SofDev] Records VS Classes<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">My interpretation is that we need to teach records as in files and records, as opposed to the language specific data structure. How you then implement the record
is up to … you? … the students? I’m also thinking that might tie into XML and the importing and exporting of data. Please tell me if my interpretation is wrong!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Chris<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><a href="mailto:sofdev-bounces@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev-bounces@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> [</span><a href="mailto:sofdev-bounces@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">mailto:sofdev-bounces@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">]
<b>On Behalf Of </b>Laurie Savage<br>
<b>Sent:</b> Thursday, 25 February 2016 2:03 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <</span><a href="mailto:sofdev@edulists.com.au"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev@edulists.com.au</span></a><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Subject:</b> Re: [Year 12 SofDev] Records VS Classes<o:p></o:p></span></p>
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<p class="MsoNormal">Always a good idea to teach what is in the study design even if current practice is moving past it.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Laurie Savage<o:p></o:p></p>
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<p class="MsoNormal">PVGC<o:p></o:p></p>
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<p class="MsoNormal">Laurie Savage<br>
<a href="https://sites.google.com/a/pvgc.vic.edu.au/mr-savage/home" target="_blank">https://sites.google.com/a/pvgc.vic.edu.au/mr-savage/home</a><o:p></o:p></p>
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<p class="MsoNormal">On 25 February 2016 at 13:15, Baas, Benjamin B <<a href="mailto:baas.benjamin.b@edumail.vic.gov.au" target="_blank">baas.benjamin.b@edumail.vic.gov.au</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I just wanted to get people’s opinions, as part of the study design we have to teach our students about record data structures. If we have to use an OO language would it not be
best to just teach them how to make classes. <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I haven’t done structs in C# before, only C, and to me it feels like I should just teach me students how to make basic classes and not worry about teaching sturcts. I will teach
them structs as that’s what the study design says.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Ben.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:14.0pt;color:#17365D">Benjamin Baas</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.0pt;color:#1F497D"><img border="0" width="40" height="34" id="Picture_x0020_1" src="cid:image001.png@01D17099.BD7FC6B0" alt="Description: cid:image001.png@01C9CA67.50F474D0"></span><b><span style="font-size:10.0pt;color:#948A54"> </span><span style="color:#17365D">Alkira
Secondary College</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:Wingdings;color:#17365D">+</span><span lang="EN-US" style="font-size:9.0pt;color:#17365D">
<b>Nurture Ave, Cranbourne North | PO Box 4314, Narre Warren South 3805</b></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:"Wingdings 2";color:#17365D">'</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:#17365D">
</span><b><span lang="EN-US" style="font-size:9.0pt;color:#17365D"> </span></b><a href="tel:%2B61%203%205991%203500" target="_blank"><b><span lang="EN-US" style="font-size:9.0pt">+61 3 5991 3500</span></b></a><b><span lang="EN-US" style="font-size:9.0pt;color:#17365D">
</span></b><span lang="EN-US" style="font-size:9.0pt;font-family:"Wingdings 2";color:#17365D">6
</span><a href="tel:%2B61%203%205991%203599" target="_blank"><b><span lang="EN-US" style="font-size:9.0pt">+61 3 5991 3599</span></b></a><b><span lang="EN-US" style="font-size:9.0pt;color:#17365D">
</span></b><span lang="EN-US" style="font-size:9.0pt;font-family:Wingdings;color:#1F497D">8<b>
</b></span><a href="http://www.alkirasecondarycollege.com.au/" target="_blank"><b><span lang="EN-US" style="font-size:9.0pt;color:#548DD4">www.alkirasecondarycollege.com.au</span></b></a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span style="font-size:8.0pt;color:#404040">Alkira Secondary College believes in
</span></i><i><span style="font-size:8.0pt;color:red">Personalised</span></i><i><span style="font-size:8.0pt;color:#404040"> learning for all, and
</span></i><i><span style="font-size:8.0pt;color:red">Respect</span></i><i><span style="font-size:8.0pt;color:#404040"> for the individual</span></i><o:p></o:p></p>
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<pre><span style="color:black">IMPORTANT - This email and any attachments may be confidential. If received in error, please contact us and delete all copies. Before opening or using attachments check them for viruses and defects. Regardless of any loss, damage or consequence, whether caused by the negligence of the sender or not, resulting directly or indirectly from the use of any attached files our liability is limited to resupplying any affected attachments. Any representations or opinions expressed are those of the individual sender, and not necessarily those of the Department of Education and Training.<o:p></o:p></span></pre>
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<pre><span style="color:black">IMPORTANT - This email and any attachments may be confidential. If received in error, please contact us and delete all copies. Before opening or using attachments check them for viruses and defects. Regardless of any loss, damage or consequence, whether caused by the negligence of the sender or not, resulting directly or indirectly from the use of any attached files our liability is limited to resupplying any affected attachments. Any representations or opinions expressed are those of the individual sender, and not necessarily those of the Department of Education and Training.<o:p></o:p></span></pre>
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<pre><span style="color:black">IMPORTANT - This email and any attachments may be confidential. If received in error, please contact us and delete all copies. Before opening or using attachments check them for viruses and defects. Regardless of any loss, damage or consequence, whether caused by the negligence of the sender or not, resulting directly or indirectly from the use of any attached files our liability is limited to resupplying any affected attachments. Any representations or opinions expressed are those of the individual sender, and not necessarily those of the Department of Education and Training.<o:p></o:p></span></pre>
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