如何使用os python获取另一个文件夹中的文件路径

Question

假设这是我的文件夹结构，

project
main_folder
file.py
json_files_folder
one.json
two.json
three.json

当我运行file.py文件时，它应该获取json_files_folder中文件的路径并打开一个文件，这是我的代码，

import json
import os

try:
file_path = os.path.dirname(os.path.realpath(__file__))
filename = file_path + '/' + 'one' + '.json'
with  open(filename) as file:
data = json.load(file)
return data
except:
return "error"

我应该改变file_path变量使这段代码工作吗?提前感谢!

Answer 1

您的json文件存在于json_files_folder中，因此您需要遍历该路径以获取json文件。下面是相同的代码:

import json
import os

try:
file_path = os.path.dirname(os.path.realpath(__file__))
filename = file_path + '/../json_files_folder/one.json'
with  open(filename) as file:
data = json.load(file)
print (data)
except Exception as ex:
raise ex

Answer 2

另一个解决方案是使用Pathlib.Path。

import json
from pathlib import Path

try:
base = Path(__file__).parent.parent
filename = base / 'json_files_folder' / 'one.json'
with  open(filename) as file:
data = json.load(file)
print(data)
except:
return "error"