reprlib.py 文件源码

def _repr_iterable(self, x, level, left, right, maxiter, trail=''):
        n = len(x)
        if level <= 0 and n:
            s = '...'
        else:
            newlevel = level - 1
            repr1 = self.repr1
            pieces = [repr1(elem, newlevel) for elem in islice(x, maxiter)]
            if n > maxiter:  pieces.append('...')
            s = ', '.join(pieces)
            if n == 1 and trail:  right = trail + right
        return '%s%s%s' % (left, s, right)