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<p>我有以下CSV数据</p>
<pre><code>Rule1,Status1,1
Rule1,Status2,1
Rule1,Status3,1
Rule1,Status4,2
Rule2,Status1,2
Rule2,Status2,1
Rule2,Status3,1
Rule2,Status4,3
</code></pre>
<p>我在一个名为rules的列表中存储了唯一的规则(第一列)。我希望我的字典看起来像下面这样:</p>
^{pr2}$
<p>以下是我尝试的:</p>
<pre><code>openfile = ('data.csv', 'rU')
finalfile = csv.reader(openfile, delimiter=',')
FullDictionary = {}
for row in finalfile:
for j in range (0, 300): #300 number of rules
if Rules[j] not in FullDictionary:
for i in range(1, 71): #These are third column numbers 1 - 71
if i == int(row[2]) and row[0] == Rules[j]:
FullDictionary = {Rules[j] : { i : [].<a href="https://www.cnpython.com/list/append" class="inner-link">append</a>[row[1]}}
print FullDictionary
</code></pre>
<p>但我得到的结果是:</p>
<pre><code>{'Rule1': {1 : None}} and so on
</code></pre>
<p>我做错什么了吗?如何完成这项任务,使一个字典和另一个列表同时存在。在</p>
<p>我试过了:</p>
<pre><code>def something():
full_dictionary = {}
with open(DataFilePath) as f:
reader = csv.reader(f)
for row in reader:
rule = row[2], status = row[0], num = int(row[5])
r = full_dictionary.setdefault(rule, {})
r.setdefault(num, []).append(status)
print full_dictionary
</code></pre>
<p>错误:值错误:对关闭的文件执行I/O操作</p>