Question

我在不同文件夹中使用相同名称的同一文件。我想找到最新的修改版，所以我使用这个脚本：

import os

from collections import OrderedDict


home = os.path.expanduser('~/')  # path of home, common for al users
result = []
time = {}
name = '.webpyconfig.ini'
for root, dirs, files in os.walk(home):
    dirs[:] = [d for d in dirs if not d == '.Trash']
    if name in files:
        result.append(os.path.join(root, name))

for times in range(0, len(result)):
    time[times] = [result[times], os.stat(result[times]).st_mtime]
    time = OrderedDict(sorted(time.items(), key=lambda x: x[1]))
    maxtime = time[len(time) - 1][1]
    maxpath = time[len(time) - 1][0]


for k in range(0, len(time)):
    print time[k][1], time[k][0]

print ''
print maxtime, maxpath

结果是：

1448636799.0 /Users/Leo/Desktop/Webpy/.webpyconfig.ini
1448637069.0 /Users/Leo/Desktop/Webpy2/.webpyconfig.ini
1448636937.0 /Users/Leo/Documents/Webpy/.webpyconfig.ini

1448636937.0 /Users/Leo/Documents/Webpy/.webpyconfig.ini

如您所见，订单不正确，因为Webpy2是最新创建的文件。一些提示？

Answer 1

您正在将列表存储为值，并按该列表进行排序：

time[times] = [result[times], os.stat(result[times]).st_mtime]

排序键中的

x[1]是整个列表，包含[path, time]个值。这意味着您首先按路径排序，而不是修改时间。

你有点过于复杂;只需在os.walk()循环中添加时间，只需时间：

results = {}
for root, dirs, files in os.walk(home):
    dirs[:] = [d for d in dirs if not d == '.Trash']
    if name in files:
        path = os.path.join(root, name)
        results[path] = os.stat(path).m_time

sorted_by_mtime = OrderedDict(sorted(results.items(), key=lambda kv: kv[1]))
for path, time in sorted_by_mtime.items():
    print time, path

排序字典时有些麻烦

1 个答案: