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<p>这个程序运行得很好,但是我收到了一个<code>TypeError: 'float' object is not subscriptable</code>,我不知道如何修复它。你知道吗</p>
<p>这是我的代码:函数读取空气质量数据并返回平均空气质量字典</p>
<pre><code>def make_avg_pm2_dictionary():
d = {}
with open("air_data.tsv", encoding ='latin1') as fd:
for line in fd:
row=line.strip().split("\t")
if row[0] in d:
key = row[0]
val1 = float(d[row[0]])
val2 = float(row[6])
temp = (val1 + val2)/2
d[key] = round(temp, 2)
elif row[0] == 'Country':
val1 = 0
else:
d[row[0]] = float(row[6])
fd.close()
return d
</code></pre>
<p>每个国家的空气质量字典(aqd)
并返回一本字典,里面有每个国家的人口和空气质量
如果那个国家有空气质量数据</p>
<pre><code>def add_cia_population_data(dic1):
with open("cia_population.tsv", encoding='latin1') as fd:
for line in fd:
row = line.strip().split("\t")
key = row[1]
if key in dic1:
temp = [row[2], dic1[key]]
d = {key: temp}
dic1.update(d)
fd.close()
return dic1
</code></pre>
<p>打印出国家名称、人口和pm2值
超过世界卫生组织规定的1年pm2水平的阈值(单位:微克/立方米)
这将使长期死亡风险从图1增加15%
打印按国家姓氏排序的数据</p>
<pre><code>def print_exceed_threshold(data,threshold):
for keys in data:
temp = data[keys]
if temp[1] >= threshold:
name = str(keys)
mp2 = str(temp[1])
pop = str(temp[0])
print("{0:<25} {1:<20} {2:<10}".format(name,pop,mp2))
</code></pre>
<p>调用所有函数</p>
<pre><code>def main():
# Build dictionary from air quality file
avg_pm2 = make_avg_pm2_dictionary()
# Read in cia population and create a dictionary
# with population and average pm2 data for each country
country_data = add_cia_population_data(avg_pm2)
# print countries with air quality
# exceeding WHO's guidelines
print_exceed_threshold(country_data,35)
#run the analysis
main()
</code></pre>
<p>程序应该显示一些统计数据,没有太多。你知道吗</p>
<p>回溯:</p>
<pre><code>Traceback (most recent call last):
File "<ipython-input-1-6bf5bffb30ed>", line 1, in <module>
runfile('/Users/felipe/Desktop/A05/A05.py', wdir='/Users/felipe/Desktop/A05')
File "/anaconda3/lib/python3.6/site-packages/spyder_kernels/customize/spydercustomize.py", line 668, in runfile
execfile(filename, namespace)
File "/anaconda3/lib/python3.6/site-packages/spyder_kernels/customize/spydercustomize.py", line 108, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "/Users/felipe/Desktop/A05/A05.py", line 82, in <module>
main()
File "/Users/felipe/Desktop/A05/A05.py", line 77, in main
print_exceed_threshold(country_data,35)
File "/Users/felipe/Desktop/A05/A05.py", line 60, in print_exceed_threshold
if temp[1] >= threshold:
TypeError: 'float' object is not subscriptable
</code></pre>