National numbers outside the US and Canada are always prefixed with 01

[SBoudrias]

When formatting a number from outside the US or Canada as a national number, this library always prepend a 01 in front.

Here's an example with a number from Mexico

num = phonenumbers.parse('+523222222099')
phonenumbers.format_number(num, phonenumbers.PhoneNumberFormat.NATIONAL)
// OUT: u'01 322 222 2099'

I'd expect the national number to be 322 222 2099.

[daviddrysdale]

I get the same result from the upstream Java code, so please could you raise your worry with them?

(The Python version just tracks the Java code, so if the same behaviour occurs with both it's not a python-phonenumbers specific issue.)