帶有item（）和enumerate（）的Python列表理解

Question

我想實現這個：

asset_hist = []
for key_host, val_hist_list in am_output.asset_history.items():
     for index, hist_item in enumerate(val_hist_list):
        row = collections.OrderedDict([("computer_name", key_host), ("id", index), ("hist_item", hist_item)])
        asset_hist.append(row)

使用列表理解。 這是我所能接近的：

asset_hist = [collections.OrderedDict([("computer_name", key_host), ("id", index), ("hist_item", hist_item)]) for index, hist_item in enumerate((val_hist_list, key_host)[0]) for key_host, val_hist_list in am_output.asset_history.items()]

Answer 1

您接近：

import collections

asset_hist = [collections.OrderedDict([("computer_name", key_host), ("id", index), ("hist_item", hist_item)]) for index, hist_item in enumerate(val_hist_list) for key_host, val_hist_list in am_output.asset_history.items()]