def capfirst(x):
    '''Capitalise the first letter of ``x``.
    '''
    x = to_string(x).strip()
    if x:
        return x[0].upper() + x[1:].lower()
    else:
        return x
def capfirst ( x ) : x = to_string ( x ) . strip ( ) if x : return x [ 0 ] . upper ( ) + x [ 1 : ] . lower ( ) else : return x
Capitalise the first letter of ``x``.