fixes scikit-rf/scikit-rf#234
@@ -119,7 +119,7 @@ class Touchstone:
try:
self.rank = int(extension[1:-1])
except (ValueError):
- raise (ValueError("filename does not have a s-parameter extension. It has [%s] instead. please, correct the extension to of form: 'sNp', where N is any integer." %(extention)))
+ raise (ValueError("filename does not have a s-parameter extension. It has [%s] instead. please, correct the extension to of form: 'sNp', where N is any integer." %(extension)))
elif extension == 'ts':
pass
else:
