Reputation: 10373

How to open my files in data_folder with pandas using relative path?

I'm working with pandas and need to read some csv files, the structure is something like this:

folder/folder2/scripts_folder/script.py

folder/folder2/data_folder/data.csv

How can I open the data.csv file from the script in scripts_folder?

I've tried this:

absolute_path = os.path.abspath(os.path.dirname('data.csv'))

pandas.read_csv(absolute_path + '/data.csv')

I get this error:

File folder/folder2/data_folder/data.csv does not exist

Upvotes: 77

Answers (18)

Asha Choudhary

Reputation: 165

You could use os.path.join with the name of the file which you are trying to read and the path where this file is located. Here is the example below:

import pandas as pd
import os
path='/home/user/d_directory/'
file= 'xyz.csv'
data= pd.read_csv(os.path.join(path, file)

Upvotes: 0

Amir D Temmani

Reputation: 1

Just replace your "/" with ""

Upvotes: 0

Coşkun Taştan

Reputation: 1

Try this: Open a new terminal window. Drag and drop the file (that you want Pandas to read) in that terminal window. This will return the full address of your file in a line. Copy and paste that line into read_csv command as shown here:

import pandas as pd
pd.read_csv("the path returned by terminal")

That's it.

Upvotes: -1

ping George

Reputation: 69

You can use . to represent now working path.

#Linux
df = pd.read_csv("../data_folder/data.csv")
#Wins
df = pd.read_csv("..\\data_folder\\data.csv")

Upvotes: 1

tyler

Reputation: 91

If you want to keep your tidy, then I would suggest you to assign the path and file separately and then read:

path = 'C:/Users/username/Documents/folder'
file_name = 'file_name.xlsx'

file=pd.read_excel(f"{path}{file_name}")

Upvotes: 2

Laurent B.

Reputation: 2263

import os

s_path = os.getcwd()
# s_path = "...folder/folder2/scripts_folder/script.py"
s_path = s_path.split('/')
print(s_path)
# [,..., 'folder', 'folder2', 'scripts_folder', 'script.py']

d_path = s_path[:len(s_path)-2] + ['data_folder', 'data.csv']
print(os.path.join(*d_path))
# ...folder/folder2/data_folder/data.csv```

Upvotes: 0

Pritom Bhowmik

Reputation: 1

You can try with this.

df = pd.read_csv("E:\working datasets\sales.csv")
print(df.head())

Upvotes: 0

Michael Williamson

Reputation: 123

This link here answers it. Reading file using relative path in python project

Basically using Path from pathlib you'll do the following in script.py

from pathlib import Path
path = Path(__file__).parent / "../data_folder/data.csv"
pd.read_csv(path)

Upvotes: 2

Abu Shoeb

Reputation: 5152

You can always point to your home directory using ~ then you can refer to your data folder.

import pandas as pd
df = pd.read_csv("~/mydata/data.csv")

For your case, it should be like this

import pandas as pd
df = pd.read_csv("~/folder/folder2/data_folder/data.csv")

You can also set your data directory as a prefix

import pandas as pd
DATA_DIR = "~/folder/folder2/data_folder/"
df = pd.read_csv(DATA_DIR+"data.csv")

You can take advantage of f-strings as @nikos-tavoularis said

import pandas as pd
DATA_DIR = "~/folder/folder2/data_folder/"
FILE_NAME = "data.csv"
df = pd.read_csv(f"{DATA_DIR}{FILE_NAME}")

Upvotes: 1

Dougz

Reputation: 19

I was also looking for the relative path version, this works OK. Note when run (Spyder 3.6) you will see (unicode error) 'unicodeescape' codec can't decode bytes at the closing triple quote. Remove the offending comment lines 14 and 15 and adjust the file names and location for your environment and check for indentation.

-- coding: utf-8 --

""" Created on Fri Jan 24 12:12:40 2020

Source: Read a .csv into pandas from F: drive on Windows 7

Demonstrates: Load a csv not in the CWD by specifying relative path - windows version

@author: Doug

From CWD C:\Users\Doug\.spyder-py3\Data Camp\pandas we will load file

C:/Users/Doug/.spyder-py3/Data Camp/Cleaning/g1803.csv

"""

import csv

trainData2 = []

with open(r'../Cleaning/g1803.csv', 'r') as train2Csv:

  trainReader2 = csv.reader(train2Csv, delimiter=',', quotechar='"')

  for row in trainReader2:

      trainData2.append(row)

print(trainData2)

Upvotes: 1

hitesh dev

Reputation: 31

With python or pandas when you use read_csv or pd.read_csv, both of them look into current working directory, by default where the python process have started. So you need to use os module to chdir() and take it from there.

import pandas as pd 
import os
print(os.getcwd())
os.chdir("D:/01Coding/Python/data_sets/myowndata")
print(os.getcwd())
df = pd.read_csv('data.csv',nrows=10)
print(df.head())

Upvotes: 3

Nikos Tavoularis

Reputation: 2913

Keeping things tidy with f-strings:

import os
import pandas as pd

data_files = '../data_folder/'
csv_name = 'data.csv'

pd.read_csv(f"{data_files}{csv_name}")

Upvotes: 5

Rajesh Nair

Reputation: 19

import pandas as pd
df = pd.read_csv('C:/data_folder/data.csv')

Upvotes: 1

MD Rijwan

Reputation: 481

For non-Windows users:

import pandas as pd
import os

os.chdir("../data_folder")
df = pd.read_csv("data.csv")

For Windows users:

import pandas as pd

df = pd.read_csv(r"C:\data_folder\data.csv")

The prefix r in location above saves time when giving the location to the pandas Dataframe.

Upvotes: 14

Kenan

Reputation: 14094

Pandas will start looking from where your current python file is located. Therefore you can move from your current directory to where your data is located with '..' For example:

pd.read_csv('../../../data_folder/data.csv')

Will go 3 levels up and then into a data_folder (assuming it's there) Or

pd.read_csv('data_folder/data.csv')

assuming your data_folder is in the same directory as your .py file.

Upvotes: 49

norman_h

Reputation: 921

You could use the __file__ attribute:

import os
import pandas as pd
df = pd.read_csv(os.path.join(os.path.dirname(__file__), "../data_folder/data.csv"))

Upvotes: 19

CodeIsLife

Reputation: 1245

# script.py
current_file = os.path.abspath(os.path.dirname(__file__)) #older/folder2/scripts_folder

#csv_filename
csv_filename = os.path.join(current_file, '../data_folder/data.csv')

Upvotes: 5

SPKoder

Reputation: 1893

Try

import pandas as pd
pd.read_csv("../data_folder/data.csv")

Upvotes: 95

How to open my files in data_folder with pandas using relative path?

Answers (18)

-- coding: utf-8 --

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