Question

遍历字典时，我会将键的值分配给另一本字典的匹配键，但是当我这样做时，它将更改字典中所有键的值，而不仅仅是匹配密钥输入。

由于某种原因，这在Sublime中工作正常，但在PyCharm中运行完全相同的代码时则无效。

categories_ranges = {'MILES': 
                    {'CATEGORIES': ['TOTPOP_CY', 'TOTHH_CY', 'MEDHINC_CY', 
                    'AVGHINC_CY', 'BACHDEG_CY', 'GRADDEG_CY', 'MEDAGE_CY', 
                    'FAMHH_CY', 'OCCARCH_CY', 'OCCBLDG_CY', 'OCCFARM_CY', 
                    'OCCCONS_CY', 'OCCMAIN_CY', 'OCCTRAN_CY'], 
                    'RANGES': [[1, 2, 3, 5]]}, 'MINUTES': 
                    {'CATEGORIES': '', 'RANGES': ''}}
organized_output = {
'TOTPOP_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}},
'TOTHH_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'MEDHINC_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'AVGHINC_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'BACHDEG_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'GRADDEG_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'MEDAGE_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'FAMHH_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCARCH_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCBLDG_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCFARM_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCCONS_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCMAIN_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}, 
'OCCTRAN_CY': {'MILES': {1: 0, 2: 0, 3: 0, 5: 0}, 'MINUTES': {}}
}

for key, value in categories_ranges.items():
    demogs_response = {'MILES': 
               {'TOTPOP_CY': {1: 6639, 2: 22682, 3: 39254, 5: 86086}, 
                'TOTHH_CY': {1: 2834, 2: 9149, 3: 16026, 5: 37772}, 
                'MEDHINC_CY': {1: 53505, 2: 52391, 3: 55267, 5: 67726}, 
                'AVGHINC_CY': {1: 72158, 2: 74334, 3: 80261, 5: 100634}, 
                'BACHDEG_CY': {1: 895, 2: 3221, 3: 5805, 5: 16240}, 
                'GRADDEG_CY': {1: 414, 2: 1508, 3: 3021, 5: 11027}, 
                'MEDAGE_CY': {1: 35.2, 2: 36.4, 3: 37.8, 5: 43.6}, 
                'FAMHH_CY': {1: 1545, 2: 5319, 3: 9072, 5: 20572}, 
                'OCCARCH_CY': {1: 104, 2: 382, 3: 466, 5: 956}, 
                'OCCBLDG_CY': {1: 169, 2: 905, 3: 1704, 5: 1471}, 
                'OCCFARM_CY': {1: 0, 2: 0, 3: 3, 5: 21}, 
                'OCCCONS_CY': {1: 152, 2: 791, 3: 1264, 5: 1719}, 
                'OCCMAIN_CY': {1: 177, 2: 365, 3: 507, 5: 837}, 
                'OCCTRAN_CY': {1: 200, 2: 810, 3: 1537, 5: 1955}}}

    if categories_ranges[key]['RANGES'] != '':
        for demog_field in demogs_response:
            for category in demogs_response[demog_field]:
                for _key, _value in demogs_response[demog_field][category].items():
                    organized_output[category][demog_field][_key] = _value

print("organized_output: ", organized_output)

输出应如下所示-再次可以在Sublime中正常工作

organized_output:  {'TOTPOP_CY': 
{'MILES': {1: 6639, 2: 22682, 3: 39254, 5: 86086}, 'MINUTES': {}},
'TOTHH_CY': {'MILES': {1: 2834, 2: 9149, 3: 16026, 5: 37772}, 'MINUTES': {}},
'MEDHINC_CY': {'MILES': {1: 53505, 2: 52391, 3: 55267, 5: 67726}, 'MINUTES': {}},
'AVGHINC_CY': {'MILES': {1: 72158, 2: 74334, 3: 80261, 5: 100634}, 'MINUTES': {}},
'BACHDEG_CY': {'MILES': {1: 895, 2: 3221, 3: 5805, 5: 16240}, 'MINUTES': {}},
'GRADDEG_CY': {'MILES': {1: 414, 2: 1508, 3: 3021, 5: 11027}, 'MINUTES': {}},
'MEDAGE_CY': {'MILES': {1: 35.2, 2: 36.4, 3: 37.8, 5: 43.6}, 'MINUTES': {}},
'FAMHH_CY': {'MILES': {1: 1545, 2: 5319, 3: 9072, 5: 20572}, 'MINUTES': {}},
'OCCARCH_CY': {'MILES': {1: 104, 2: 382, 3: 466, 5: 956}, 'MINUTES': {}},
'OCCBLDG_CY': {'MILES': {1: 169, 2: 905, 3: 1704, 5: 1471}, 'MINUTES': {}},
'OCCFARM_CY': {'MILES': {1: 0, 2: 0, 3: 3, 5: 21}, 'MINUTES': {}},
'OCCCONS_CY': {'MILES': {1: 152, 2: 791, 3: 1264, 5: 1719}, 'MINUTES': {}},
'OCCMAIN_CY': {'MILES': {1: 177, 2: 365, 3: 507, 5: 837}, 'MINUTES': {}},
'OCCTRAN_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}}

当前，在PyCharm中，输出如下所示：

organized_output = {'TOTPOP_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'TOTHH_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'MEDHINC_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'AVGHINC_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'BACHDEG_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'GRADDEG_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'MEDAGE_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'FAMHH_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCARCH_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCBLDG_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCFARM_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCCONS_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCMAIN_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}, 'OCCTRAN_CY': {'MILES': {1: 200, 2: 810, 3: 1537, 5: 1955}, 'MINUTES': {}}}

当我在PyCharm的调试中运行此代码时，我可以看到每个“ MILES”字典同时更改其值，这就是为什么“ MILES”字典的每个实例都具有相同的精确值的原因。每个条目都是不同条目的一部分，因此不应该发生这种情况。

我尝试换掉items()的用法，改为使用zip，但这也不起作用。我尝试将值赋值过程编写为列表理解，但结果也相同。目前，我非常确信这是PyCharm的问题。我上面提到的每种替代方法在Sublime中都可以完美地工作，但每次在PyCharm中我都得到相同的结果。目前，我正在运行Python 3.6.5，以防万一。

我是不是在这里丢失了某些东西，还是PyCharm存在一些固有的问题，这些问题在这些词典的迭代过程中被打破了？

Answer 1

这是我确定的最佳解决方案：

output = {}

if categories_ranges[range_type]['RANGES'] != '':
    for demog_field in demogs_response:
        for category in demogs_response[demog_field]:
            output[category] = {}
            output[category][demog_field] = {}
            for _key, _value in demogs_response[demog_field][category].items():
                output[category][demog_field][_key] = _value
    return output
else:
    return output

这不是尝试为初始词典中的键分配新值，而是形成一个新词典并在遍历先前词典的过程中对其进行重建。

设置键的值，更改所有键的所有值

1 个答案: