[Tutor] String as a Variable?
Lindsay Davies
Lindsay.Davies@moonshine.co.uk
Fri, 2 Feb 2001 18:39:11 +0000
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Why not use a dictionary?
snv = {'sn_1' : 123, 'sn_2' : 234, 'sn_3' : 345}
serial_number = '3'
try:
print snv['sn_' + serial_number]
except KeyError, missing_key:
print "The serial number '%s' is missing." % serial_number
Best wishes,
Lindsay
On 2/2/01, Seelinger, Bruce wrote about '[Tutor] String as a Variable?':
>Another newbie question...
>
>Is there a way to have a string represent a variable.
>
>For eaxample, I have a the following:
>
><snip>
>
>serial_number = '3'
>print 'ip_address_serial_' + serial_number
>ip_address_serial_3
>
>Now I want to use the string ip_address_serial_3 to pull
>the value assigned to the variable of the same name.
>
>How can I represent the string as a variable?
>
>Thanks in advance.
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<div>Why not use a dictionary?</div>
<div><br></div>
<div><font color="#000000">snv = {</font><font
color="#007F00">'sn_1'</font><font color="#000000"> :
123,</font><font color="#007F00"> 'sn_2'</font><font color="#000000">
: 234,</font><font color="#007F00"> 'sn_3'</font><font
color="#000000"> : 345}<br>
serial_number =</font><font color="#007F00"> '3'</font></div>
<div><font color="#000000"><br>
<b>try</b>:<br>
<b><x-tab> </x-tab>print</b> snv[</font><font
color="#007F00">'sn_'</font><font color="#000000"> +
serial_number]<br>
<b>except</b> KeyError, missing_key:</font></div>
<div><font
color="#000000"><b><x-tab>
</x-tab>print</b></font><font color="#007F00"> "The serial number
'%s' is missing."</font><font color="#000000"> %
serial_number</font></div>
<div><br></div>
<div><br></div>
<div>Best wishes,</div>
<div><br></div>
<div>Lindsay</div>
<div><br></div>
<div><br></div>
<div>On 2/2/01, Seelinger, Bruce wrote about '[Tutor] String as a
Variable?':</div>
<blockquote type="cite" cite>Another newbie question...<br>
<br>
Is there a way to have a string represent a variable.<br>
<br>
For eaxample, I have a the following:<br>
<br>
<snip><br>
</blockquote>
<blockquote type="cite" cite>serial_number = '3'<br>
print 'ip_address_serial_' + serial_number<br>
ip_address_serial_3<br>
<br>
Now I want to use the string ip_address_serial_3 to pull<br>
the value assigned to the variable of the same name.</blockquote>
<blockquote type="cite" cite><br></blockquote>
<blockquote type="cite" cite>How can I represent the string as a
variable?</blockquote>
<blockquote type="cite" cite><br></blockquote>
<blockquote type="cite" cite>Thanks in advance.</blockquote>
<div><br></div>
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