在python - 2.7中将多个列表写入文本文件

时间:2015-02-10 01:49:32

标签: python text writefile

最初列表嵌套在另一个列表中。列表中的每个元素都是一系列字符串。

['aaa664847', 'Completed', 'location', 'mode', '2014-xx-ddT20:00:00.000']

我加入了列表中的字符串,然后附加到结果中。

results.append[orginal] 

print results

['aaa664847, Completed, location, mode, 2014-xx-ddT20:00:00.000']
['aaa665487, Completed, location, mode, 2014-xx-ddT19:00:00.000']
['aaa661965, Completed, location, mode, 2014-xx-ddT18:00:00.000']
['aaa669696, Completed, location, mode, 2014-xx-ddT17:00:00.000']
['aaa665376, Completed, location, mode, 2014-xx-ddT16:00:00.000']

我希望将每个列表写入文本文件。列表的数量可以变化。

我目前的代码:

fullpath = ('O:/Location/complete.txt')
outfile = open(fullpath, 'w')
outfile.writelines(results)

只返回文本文件中的第一个列表:

aaa664847, Completed, location, mode, 2014-xx-ddT20:00:00.000

我希望文本文件包含所有结果

3 个答案:

答案 0 :(得分:1)

如果你的列表是嵌套列表,你可以像这样使用循环到writelines:

fullpath = ('./data.txt')
outfile = open(fullpath, 'w')
results = [['aaa664847, Completed, location, mode, 2014-xx-ddT20:00:00.000'],
['aaa665487, Completed, location, mode, 2014-xx-ddT19:00:00.000'],
['aaa661965, Completed, location, mode, 2014-xx-ddT18:00:00.000'],
['aaa669696, Completed, location, mode, 2014-xx-ddT17:00:00.000'],
['aaa665376, Completed, location, mode, 2014-xx-ddT16:00:00.000']]

for result in results:
  outfile.writelines(result)
  outfile.write('\n')

outfile.close()

此外,请记得关闭文件。

答案 1 :(得分:1)

假设results是列表清单:

from itertools import chain
outfile = open(fullpath, 'w')
outfile.writelines(chain(*results))

itertools.chain会将列表连成一个列表。 但writelines不会写新内容。为此你可以这样做:

outfile.write("\n".join(chain(*results))

或者,显而易见(假设结果中的所有列表只有一个字符串):

outfile.write("\n".join(i[0] for i in results)

答案 2 :(得分:0)

如果你可以将所有这些字符串收集到一个大的列表中,你可以循环遍历它们。

我不确定results来自您的代码,但是如果您可以将所有这些字符串放在一个大的列表中(可能称为masterList),那么您可以这样做:

fullpath = ('O:/Location/complete.txt')
outfile = open(fullpath, 'w')

for item in masterList:
    outfile.writelines(item)