如何重新映射python dict键

name_map = {'oldcol1': 'newcol1', 'oldcol2': 'newcol2', 'oldcol3': 'newcol3'...}for row in rows:    # Each row is a dict of the form: {'oldcol1': '...', 'oldcol2': '...'}    row = dict((name_map[name], val) for name, val in row.iteritems())    ...

或在具有Dict理解力的Python2.7 +中：

for row in rows:    row = {name_map[name]: val for name, val in row.items()}