从文件路径中提取 "time"

Question

编辑上一个关于数据框的问题：

我有一个 pandas 数据框，其中一列包含文件路径，例如 path1/path2/path3/name/path4/hhmmss.tar.gz。我想遍历每一行并提取文件路径中给定的名称和相应的小时、分钟和秒。我的输出应该是这样的：

for i in dataframe.file_path:
        code for extracting
        print(name, hours, min, sec)

谢谢！

Answer 1

path = "archives/folder_name/name2/name3/name4/225422.tar.gz"

time = (path.split("/")[-1]).split(".")[0]
hours = time[0:2]
mins = time[2:4]
seconds = time[4:6]

Answer 2

例如：

import re

path = 'archives/folder_name/name2/name3/name4/225422.tar.gz'
   
pattern = re.compile(r'/(?P<hours>\d\d)(?P<minutes>\d\d)(?P<seconds>\d\d)\.tar\.gz$')
match = re.search(pattern, path)

print(match.groupdict() if match else None)
# {'hours': '22', 'minutes': '54', 'seconds': '22'}

Answer 3

fname = 'archives/folder_name/name2/name3/name4/225422.tar.gz'
pos = fname.rindex('/') + 1 # get the position of the character following the last /
h, m, s = [fname[i:i + 2] for i in range(pos, pos + 5, 2)] # generate a list of three slices of 2 characters each, using list compehention, starting from the position found earlier and assign it to three variables
print(h, m, s)  # 22 54 22

从文件路径中提取 "time"

extracting the "time" from the file path

python

filepath

pandas