Tuesday, June 28, 2011

Kwargs in Python

Recently I noticed that function cannot accept unicode strings as parameter names given in kwargs. They must be converted to strings.

I made a sample script
import sys

print "Version: %d.%d.%d\n" % sys.version_info[:3]

string_params = {'a':1, 'b': 2}
unicode_params = {u'a':1, u'b': 2}

def f(a,b):
 print "params: ", a, b

print "Run with string params:"

print "\nRun with unicode params:"

As output I got
Version: 2.5.1

Run with string params:
params:  1 2

Run with unicode params:
Traceback (most recent call last):
  Line 15, in 
TypeError: f() keywords must be strings

To check out it online.

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