我有两个列表,我想在一个数组中合并,最后把它放在一个csv文件中.我是Python的数组的新手,我不明白我怎么能避免这个错误:
def fill_csv(self, array_urls, array_dates, csv_file_path):
result_array = []
array_length = str(len(array_dates))
# We fill the CSV file
file = open(csv_file_path, "w")
csv_file = csv.writer(file, delimiter=';', lineterminator='\n')
# We merge the two arrays in one
for i in array_length:
result_array[i][0].append(array_urls[i])
result_array[i][1].append(array_dates[i])
i += 1
csv_file.writerows(result_array)
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得到了:
File "C:\Users\--\gcscan.py", line 63, in fill_csv
result_array[i][0].append(array_urls[i])
TypeError: list indices must be integers or slices, not str
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我的计数如何运作?
list[s]是一个字符串.为什么这不起作用?
出现以下错误:
TypeError:list indices必须是整数,而不是str
list = ['abc', 'def']
map_list = []
for s in list:
t = (list[s], 1)
map_list.append(t)
Run Code Online (Sandbox Code Playgroud) 我要在Python上做Matrix Addition.(没有完成).但它显示错误.
m, n = (int(i) for i in raw_input().split())
a = [[0 for i in range(m)] for j in range(n)]
b = [[0 for i in range(m)] for j in range(n)]
c = []
total = []
for i in range(m):
x = raw_input()
for j in range(n):
value = [int(i) for i in x.split()]
c[i][j] = a[i][j]
#c.append(value)
print a
for i in c:
print i
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我想输入
3 3 < - 矩阵维m*n
1 2 3>
3 2 1>矩阵A. …