[Tutor] string from input file

[Hansen, Mike]

> -----Original Message-----
> On 
> Behalf Of Bryan Fodness
> Sent: Tuesday, April 29, 2008 3:54 PM
> To: tutorpythonmailinglist Python
> Subject: [Tutor] string from input file
> 
> I am trying to get values from an input file,
>  
>      0.192
>      Custom
>      15
>      IN
>  
> but, when I check to see if they are equal it is not true.
>  
>      f = open(infile, 'r')
>      s = f.readlines()
>      f.close()
>  
>      Block = str(s[1])
>      Angle = float(s[2])
>      Position = str(s[3])
> 
>      if Block == 'Custom':
>            print 'equal'
>  
> if I print Block+'Custom', I get,
>  
>      Custom
>      Custom
>  
> when I would have expected
>  
>      CustomCustom
>  
> Can someone help me figure out if  I am not reading the 
> values in correctly, is there a control character at the end? 
>  The float value is ok.

Your string has a line ending in it, so it doesn't match. It's
essentially "Custom\n". Just use a slice to remove the line ending
character(\n). Also, I don't think you need to convert s[1] to a
string. I think it's already a string.

Block = s[1][:-1]


In [1]: x = "Custom\n"

In [2]: y = x[:-1]

In [3]: y
Out[3]: 'Custom'

Mike