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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Kathy,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The defaults only get assigned when you
leave them out of the list. This will work the way you want by setting b &
c to the defaults.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> print my_func(a)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>When you try this;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> a = “testing”<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> b = “defaults”<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> print my_func(a, b, c)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You get an undefined error on c. This is
because at this point, c has been created but hasn’t had anything
assigned to it. In other words, you’re actually passing the undefined c
variable from here into my_func.<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> python-list-bounces+joe=goldthwaites.com@python.org
[mailto:python-list-bounces+joe=goldthwaites.com@python.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Cathy James<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, January 16, 2011
7:49 AM<br>
<b><span style='font-weight:bold'>To:</span></b> python-list@python.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Functions Not Fun
(yet)-please help!</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Dear all,<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I can't thank you enough for taking time from your busy schedules to
assist me (and others) in my baby steps with Python. Learning about
functions now and wondering about some things commented in my code below. Maybe
someone can break it down for me and show me why i cant print the function i
created. I am using IDLE, saved it as .py<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>def my_func(a, b="b is a default" ,c="c is another
default"):<br>
print (a)<br>
print (b)<br>
print (c)<br>
<o:p></o:p></span></font></p>
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<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>#printing
the function itself:<br>
<br>
#1. assign value to a only, b and c as default:<br>
a= "testing"<br>
print (my_func(a,b,c)) #why does program say c is not defined, tho default in
function above?<br>
#2. assign a and b only, c is default<br>
print my_func(a="testing a", b="testing b")<o:p></o:p></span></font></p>
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