Python：用变量名命名文件夹和文件

Question

I'm trying to create python script that will make folder with variable name and .csv file inside that folder with variable name included.

import pathlib
import csv
name = input()
pathlib.Path(name).mkdir(parents=True, exist_ok=True)
csvfile = open(name/name+"1day.csv", 'w', newline='')

Answer 1

The name/name is you are trying to devide name by name. the / is not in a string but an operator. There are two options to solve this.

1. Make the / string

   csvfile = open(name+"/"+name+"1day.csv", 'w', newline='')

   However, this option will cause issue if you want it to run in windows and Linux . So the option two is an notch up.

2. Use os.path.join()
   You have to import the os and use the the join to create a whole path. you script will look like the following

   import pathlib import csv import os # <--- new line name = input() pathlib.Path(name).mkdir(parents=True, exist_ok=True) csvfile = open(os.path.join(name, name+"1day.csv"), 'w', newline='') # <--- changed one.

   The os.path.join will ensure to use right one ( / or \\ ) depending on the OS you are running.

Answer 2

I think you're almost there. Try

from pathlib import Path
import csv

name = input()
path = Path(name)
path.mkdir(parents=True, exist_ok=True)
csvfile = open(path / (name + "1day.csv"), 'w', newline='')

instead.

The Path class is almost always the only thing you need from pathlib , so you don't need to import the full pathlib . If possible, I'd avoid using both, os and pathlib , at the same time for working with paths (not always possible, I know, but in most cases).