python read different type data

Ngchiwa Ng

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Mar 2, 2020

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• txt

with open('example.txt', 'r') as f:
    data = f.readlines()
    print(data)

• json

import json
with open('example.json', 'r') as f:
    data = json.load(f)

• image with cv2

# pip install opencv-python
# export PYTHONPATH=/usr/local/lib/python3.7/site-packages/import cv2
image = cv2.imread('.example.jpg') 
image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
plt.imshow(image)
plt.show()

• image with Pillow

# pip install Pillow
from PIL import Image
image = Image.open('../ai100-4/day4/example.jpg')
plt.imshow(image)
plt.show()

• image with skimage

pip install scikit-imageimport skimage.io as skio
image = skio.imread(".example.jpg")

plt.imshow(image)
plt.show()

• npy file

import numpy as np
arr = np.load('./example.npy')
print(arr)

• pkl file

import pickle
data = {}with open('example.pkl', 'wb') as f:                                                             
  pickle.dump(data, f)with open(‘example.pkl’, ‘rb’) as f: 
  arr = pickle.load(f)